motorola / 4HCT273A
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Octal D Flip-Flop with |
MC74HCT273A |
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Common Clock and Reset |
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with LSTTL Compatible Inputs |
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N SUFFIX |
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High±Performance Silicon±Gate CMOS |
20 |
PLASTIC PACKAGE |
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CASE 738±03 |
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The MC74HCT273A may be used as a level converter for interfacing TTL |
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or NMOS outputs to High±Speed CMOS inputs. |
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DW SUFFIX |
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The HCT273A is identical in pinout to the LS273. |
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SOIC PACKAGE |
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This device consists of eight D flip±flops with common Clock and Reset |
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CASE 751D±04 |
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inputs. Each flip±flop is loaded with a low±to±high transition of the Clock |
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input. Reset is asynchronous and active low. |
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ORDERING INFORMATION |
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• Output Drive Capability: 10 LSTTL Loads |
MC74HCTXXXAN |
Plastic |
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• TTL/NMOS Compatible Input Levels |
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MC74HCTXXXADW |
SOIC |
•Outputs Directly Interface to CMOS, NMOS and TTL
•Operating Voltage Range: 4.5 to 5.5 V
•Low Input Current: 1.0 μA
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In Compliance with the Requirements Defined by JEDEC Standard |
PIN ASSIGNMENT |
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No. 7A |
RESET |
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1 |
20 |
VCC |
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Chip Complexity: 284 FETs or 71 Equivalent Gates |
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Q0 |
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2 |
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Q7 |
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D0 |
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3 |
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D7 |
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D1 |
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4 |
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D6 |
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LOGIC DIAGRAM |
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Q1 |
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Q6 |
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Q2 |
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Q5 |
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D0 |
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Q0 |
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D2 |
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14 |
D5 |
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D1 |
4 |
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Q1 |
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D3 |
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D4 |
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D2 |
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Q2 |
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Q3 |
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Q4 |
DATA |
D3 |
8 |
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Q3 |
NONINVERTING |
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GND |
10 |
11 |
CLOCK |
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INPUTS |
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13 |
12 |
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D4 |
Q4 |
OUTPUTS |
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14 |
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D5 |
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Q5 |
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D6 |
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Q6 |
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FUNCTION TABLE |
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D7 |
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Q7 |
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Inputs |
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Output |
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CLOCK |
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Reset |
Clock |
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Q |
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L |
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X |
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L |
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H |
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H |
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RESET |
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PIN 20 = VCC |
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L |
L |
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H |
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No Change |
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PIN 10 = GND |
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H |
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No Change |
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X = Don't Care |
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Z = High Impedance |
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10/95
Motorola, Inc. 1995 |
REV 6 |
MC74HCT273A
MAXIMUM RATINGS*
Symbol |
Parameter |
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Value |
Unit |
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VCC |
DC Supply Voltage (Referenced to GND) |
± 0.5 to + 7.0 |
V |
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Vin |
DC Input Voltage (Referenced to GND) |
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± 1.5 to VCC + 1.5 |
V |
Vout |
DC Output Voltage (Referenced to GND) |
± 0.5 to VCC + 0.5 |
V |
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Iin |
DC Input Current, per Pin |
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± 20 |
mA |
Iout |
DC Output Current, per Pin |
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± 25 |
mA |
ICC |
DC Supply Current, VCC and GND Pins |
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± 50 |
mA |
PD |
Power Dissipation in Still Air |
Plastic DIP² |
750 |
mW |
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SOIC Package² |
500 |
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Tstg |
Storage Temperature |
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± 65 to + 150 |
_C |
TL |
Lead Temperature, 1 mm from Case for 10 Seconds |
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_C |
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(SOIC or Plastic DIP) |
260 |
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This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high±impedance circuit. For proper operation, Vin and Vout should be constrained to the
range GND v (Vin or Vout) v VCC. Unused inputs must always be
tied to an appropriate logic voltage level (e.g., either GND or VCC). Unused outputs must be left open.
*Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions.
²Derating Ð Plastic DIP: ± 10 mW/ _C from 65_ to 125_C
SOIC Package: ± 7 mW/_C from 65_ to 125_C
For high frequency or heavy load considerations, see Chapter 2 of the Motorola High±Speed CMOS Data Book (DL129/D).
RECOMMENDED OPERATING CONDITIONS
Symbol |
Parameter |
Min |
Max |
Unit |
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VCC |
DC Supply Voltage (Referenced to GND) |
4.5 |
5.5 |
V |
Vin, Vout |
DC Input Voltage, Output Voltage (Referenced to GND) |
0 |
VCC |
V |
TA |
Operating Temperature, All Package Types |
± 55 |
+ 125 |
_C |
tr, tf |
Input Rise and Fall Time (Figure 1) |
0 |
500 |
ns |
DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)
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Guaranteed Limit |
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VCC |
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± 55 to |
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Symbol |
Parameter |
Test Conditions |
V |
25_C |
v 85_C |
v 125_C |
Unit |
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VIH |
Minimum High±Level Input |
Vout = 0.1 V or VCC ± 0.1 V |
4.5 |
2.0 |
2.0 |
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2.0 |
V |
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Voltage |
|Iout| v 20 μA |
5.5 |
2.0 |
2.0 |
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2.0 |
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VIL |
Maximum Low±Level Input |
Vout = 0.1 V or VCC ± 0.1 V |
4.5 |
0.8 |
0.8 |
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0.8 |
V |
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Voltage |
|Iout| v 20 μA |
5.5 |
0.8 |
0.8 |
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0.8 |
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VOH |
Minimum High±Level Output |
Vin = VIH or VIL |
4.5 |
4.4 |
4.4 |
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4.4 |
V |
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Voltage |
|Iout| v 20 μA |
5.5 |
5.4 |
5.4 |
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5.4 |
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Vin = VIH or VIL |
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|Iout| v 4.0 mA |
4.5 |
3.98 |
3.84 |
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3.7 |
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VOL |
Maximum Low±Level Output |
Vin = VIH or VIL |
4.5 |
0.1 |
0.1 |
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0.1 |
V |
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Voltage |
|Iout| v 20 μA |
5.5 |
0.1 |
0.1 |
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0.1 |
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Vin = VIH or VIL |
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|Iout| v 4.0 mA |
4.5 |
0.26 |
0.33 |
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0.4 |
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Iin |
Maximum Input Leakage Current |
Vin = VCC or GND |
5.5 |
± 0.1 |
± 1.0 |
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± 1.0 |
μA |
ICC |
Maximum Quiescent Supply |
Vin = VCC or GND |
5.5 |
4.0 |
40 |
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160 |
μA |
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Current (per Package) |
Iout = 0 μA |
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ICC |
Additional Quiescent Supply |
Vin = 2.4 V, Any One Input |
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≥ ±55_C |
25_C to 125_C |
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Current |
Vin = VCC or GND, Other Inputs |
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lout = 0 μA |
5.5 |
2.9 |
2.4 |
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mA |
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NOTE: Information on typical parametric values can be found in Chapter 2 of the Motorola High±Speed CMOS Data Book (DL129/D).
MOTOROLA |
2 |
MC74HCT273A
AC ELECTRICAL CHARACTERISTICS (VCC = 5.0 V ± 10%, CL = 50 pF, Input tr = tf = 6.0 ns)
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Guaranteed Limit |
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± 55 to |
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Symbol |
Parameter |
Fig. |
25_C |
v 85_C |
v 125_C |
Unit |
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fmax |
Maximum Clock Frequency (50% Duty Cycle) |
1, 4 |
30 |
24 |
20 |
MHz |
tPLH, |
Maximum Propagation Delay, Clock to Q |
1, 4 |
25 |
28 |
35 |
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tPHL |
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tPHL |
Maximum Propagation Delay, Reset to Q |
2, 4 |
25 |
28 |
35 |
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tTLH, |
Maximum Output Transition Time, Any Output |
1, 5 |
18 |
20 |
22 |
ns |
tTHL |
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NOTE: For propagation delays with loads other than 50 pF, and information on typical parametric values, see Chapter 2 of the Motorola High± Speed CMOS Data Book (DL129/D).
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Typical @ 25°C, VCC = 5.0 V |
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CPD |
Power Dissipation Capacitance (Per Gate)* |
30 |
pF |
*Used to determine the no±load dynamic power consumption: PD = CPD VCC2f + ICC VCC. For load considerations, see Chapter 2 of the Motorola High±Speed CMOS Data Book (DL129/D).
TIMING REQUIREMENTS (VCC = 5.0 V ± 10%, CL = 50 pF, Input tr = tf = 6.0 ns)
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Guaranteed Limit |
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± 55 to 25_C |
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v 85_C |
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v 125_C |
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Symbol |
Parameter |
Fig. |
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Unit |
Min |
Max |
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Min |
Max |
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Min |
Max |
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tsu |
Minimum Setup Time, Data to Clock |
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10 |
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12 |
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15 |
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th |
Minimum Hold Time, Clock to Data |
3 |
3.0 |
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3.0 |
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3.0 |
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trec |
Minimum Recovery Time, Set or Reset Inactive to Clock |
2 |
5.0 |
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5.0 |
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5.0 |
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tw |
Minimum Pulse Width, Clock |
1 |
12 |
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15 |
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18 |
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tw |
Minimum Pulse Width, Set or Reset |
2 |
12 |
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15 |
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18 |
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tr, tf |
Maximum Input Rise and Fall Times |
1 |
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500 |
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500 |
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500 |
ns |
3 |
MOTOROLA |
MC74HCT273A |
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SWITCHING WAVEFORMS |
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t |
t |
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tw |
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r |
f |
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3.0 V |
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2.7 V |
3.0 V |
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1.3 V |
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CLOCK |
RESET |
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1.3 V |
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GND |
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0.3 V |
GND |
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tPHL |
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tw |
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1/fmax |
Q |
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1.3 V |
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tPLH |
tPHL |
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trec |
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90% |
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Q |
1.3 V |
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3.0 V |
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10% |
CLOCK |
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1.3 V |
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tTLH |
tTHL |
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GND |
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Figure 1. |
Figure 2. |
TEST POINT
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VALID |
DATA |
1.3 V |
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tsu |
th |
CLOCK |
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1.3 V |
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OUTPUT |
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3.0 V |
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DEVICE |
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GND |
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UNDER |
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CL* |
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TEST |
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3.0 V |
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GND |
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* Includes all probe and jig capacitance |
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Figure 3. |
Figure 4. Test Circuit |
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EXPANDED LOGIC DIAGRAM |
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C |
2 |
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D0 |
3 |
D R Q |
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Q0 |
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C |
5 |
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D1 |
4 |
D R Q |
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Q1 |
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C |
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D2 |
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D R Q |
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Q2 |
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C |
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D3 |
8 |
D R Q |
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Q3 |
NONINVERTING |
DATA |
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OUTPUTS |
INPUTS |
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C |
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12 |
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D4 |
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D R Q |
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Q4 |
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C |
15 |
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D5 |
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D R Q |
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Q5 |
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C |
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Q6 |
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D6 |
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D R Q |
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C |
19 |
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D7 |
18 |
D R Q |
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Q7 |
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CLOCK |
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RESET |
1 |
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MOTOROLA |
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MC74HCT273A |
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OUTLINE DIMENSIONS |
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N SUFFIX |
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±A± |
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PLASTIC PACKAGE |
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CASE 738±03 |
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NOTES: |
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ISSUE E |
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1. DIMENSIONING AND TOLERANCING PER ANSI |
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Y14.5M, 1982. |
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B |
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2. CONTROLLING DIMENSION: INCH. |
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3. DIMENSION L TO CENTER OF LEAD WHEN |
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10 |
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FORMED PARALLEL. |
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4. DIMENSION B DOES NOT INCLUDE MOLD |
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C |
L |
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FLASH. |
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INCHES |
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MILLIMETERS |
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DIM |
MIN |
MAX |
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MIN |
MAX |
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A |
1.010 |
1.070 |
25.66 |
27.17 |
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±T± |
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B |
0.240 |
0.260 |
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6.10 |
6.60 |
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K |
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C |
0.150 |
0.180 |
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3.81 |
4.57 |
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SEATING |
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D |
0.015 |
0.022 |
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0.39 |
0.55 |
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M |
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E |
0.050 BSC |
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1.27 BSC |
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PLANE |
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E |
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N |
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F |
0.050 |
0.070 |
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1.27 |
1.77 |
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G |
0.100 BSC |
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2.54 BSC |
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G |
F |
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J |
0.008 |
0.015 |
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0.21 |
0.38 |
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J 20 PL |
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K |
0.110 |
0.140 |
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2.80 |
3.55 |
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D 20 PL |
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0.25 (0.010) M |
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B |
M |
L |
0.300 BSC |
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7.62 BSC |
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M |
0 |
15 |
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0 |
15 |
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0.25 (0.010) M T |
A M |
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N |
0.020 |
0.040 |
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0.51 |
1.01 |
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DW SUFFIX |
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±A± |
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PLASTIC SOIC PACKAGE |
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NOTES: |
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CASE 751D±04 |
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1. DIMENSIONING AND TOLERANCING PER |
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ANSI Y14.5M, 1982. |
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20 |
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11 |
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ISSUE E |
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2. CONTROLLING DIMENSION: MILLIMETER. |
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3. DIMENSIONS A AND B DO NOT INCLUDE |
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MOLD PROTRUSION. |
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±B± |
10X P |
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4. MAXIMUM MOLD PROTRUSION 0.150 |
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(0.006) PER SIDE. |
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0.010 (0.25) M |
B M |
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5. DIMENSION D DOES NOT INCLUDE |
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DAMBAR PROTRUSION. ALLOWABLE |
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1 |
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10 |
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DAMBAR PROTRUSION SHALL BE 0.13 |
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(0.005) TOTAL IN EXCESS OF D DIMENSION |
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AT MAXIMUM MATERIAL CONDITION. |
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20X D |
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J |
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MILLIMETERS |
INCHES |
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0.010 (0.25) M |
T |
A |
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B |
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DIM |
MIN |
MAX |
MIN |
MAX |
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S |
S |
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A |
12.65 |
12.95 |
0.499 |
0.510 |
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B |
7.40 |
7.60 |
0.292 |
0.299 |
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F |
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C |
2.35 |
2.65 |
0.093 |
0.104 |
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D |
0.35 |
0.49 |
0.014 |
0.019 |
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F |
0.50 |
0.90 |
0.020 |
0.035 |
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R X 45 |
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G |
1.27 BSC |
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0.050 BSC |
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J |
0.25 |
0.32 |
0.010 |
0.012 |
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K |
0.10 |
0.25 |
0.004 |
0.009 |
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M |
0 |
7 |
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7 |
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C |
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P |
10.05 |
10.55 |
0.395 |
0.415 |
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R |
0.25 |
0.75 |
0.010 |
0.029 |
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±T± |
SEATING |
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PLANE |
M |
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18X G |
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K |
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Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. ªTypicalº parameters can and do vary in different applications. All operating parameters, including ªTypicalsº must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and 
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