Добавил:

student_tipo Опубликованный материал нарушает ваши авторские права? Сообщите нам.

Вуз:

Балаковский институт техники, технологии и управления

Предмет:

[НЕСОРТИРОВАННОЕ]

Файл:

motorola / 68181DS0.PDF

Источник:

https://manualmachine.com

Скачиваний:

Добавлен:

06.01.2022

Размер:

1.5 Mб

Скачать

☆

<<< < Предыдущая 1 23 / 83 4 5 6 7 8 > Следующая >>>

SECTION 2

SPECIFICATIONS

INTRODUCTIONPRELIMINARY

The MC68181 is fabricated in high density CMOS with Transistor-Transistor Logic (TTL) compatible inputs and outputs.

MAXIMUM RATINGS

CAUTION

This device contains circuitry protecting against damage due to high static voltage or electrical fields; however, normal precautions should be taken to avoid exceeding maximum voltage ratings. Reliability is enhanced if unused inputs are tied to an appropriate logic voltage level (e.g., either GND or VCC).

Note: In the calculation of timing requirements, adding a maximum value of one specification to a minimum value of another specification does not yield a reasonable sum. A maximum specification is calculated using a worst case variation of process parameter values in one direction. The minimum specification is calculated using the worst case for the same parameters in the opposite direction. Therefore, a “maximum” value for a specification will never occur in the same device that has a “minimum” value for another specification; adding a maximum to a minimum represents a condition that can never exist.

MOTOROLA

MC68181/D

2-1

MC68181

Thermal characteristics

Table 2-1 Maximum Ratings

Rating1

Symbol

Value1, 2

Unit

Supply Voltage

VCC

−0.3 to +3.6

All input voltages

VIN

GND − 0.5 to VCC + 0.5

Current drain per pin excluding VDD and VSS

Operating temperature range

–30 to +85

°C

Storage temperature

TSTG

–55 to +150

°C

Note:

1. GND = 0 V, VCC = 1.8 to 3.3 V, TA = 0 C to +70 C

Absolute maximum ratings are stress°ratings

only, and functional operation at the maximum is not

guaranteed. Stress beyond the maximum rating may affect device reliability or cause permanent

damage to the device.

THERMAL CHARACTERISTICS

Table 2-2 Thermal Characteristics

PRELIMI

Symbol

TQFP Value

Unit

Characteristic

Junction-to-ambient thermal resistance1

R JA or θJA

°C/W

Thermal characterization parameter

ΨJT

°C/W

Note:

1. Junction-to-ambient thermal resistance is based on measurements on a horizontal, single-sided

Printed Circuit Board per SEMI G38-87 in natural convection.(SEMI is Semiconductor Equipment and Materials International, 805 East Middlefield Rd., Mountain View, CA 94043, (415) 964-5111) Values were measured with the parts mounted on thermal test boards meeting the specification EIA/ JESD51-3.

2-2

MC68181/D

MOTOROLA

MC68181

DC Electrical Characteristics

DC ELECTRICAL CHARACTERISTICS

Table 2-3 DC Electrical Characteristics

Characteristics

Symbol

Min

Typ

Max

Unit

Supply voltage

VCC

1.8

2.0 or 3.3

3.6

Input high voltage

VIH

PRELIMINARY

VCC

RESET, SS, SCK, MOSI

0.75 VDD

—

All other inputs

0.7

—

VCC

×VDD

Input low voltage

VIL

—

0.2 × VDD

Input leakage current

IIN

–0.25

—

0.25

μA

High impedance (off-state) input current

TSI

–10

—

+10

(@ 1.44 V /0.3 V)

Output high voltage (IOH = –1.0 mA)

VOH

0.8 × VDD

—

Output low voltage (IOL = 2.8 mA)

VOL

—

0.3

Internal Supply Current1

ICC

—

100

—

μA

Input capacitance

CIN

—

Note: 1. This value is for static ICC.

AC ELECTRICAL CHARACTERISTICS

The timing waveforms in the AC Electrical Characteristics are tested with a VIL

maximum of 0.2

VDD in V and a VIH minimum of 0.7 VDD in V for all inputs. AC

timing

specifications that are referenced to a device input signal are measured in

production with respect to the 50% point of the respective input signal’s transition. MC68181 output levels are measured with the production test machine VOL and VOH reference levels set at 0.3 × VDD in V and 0.6 × VDD in V, respectively.

MOTOROLA

MC68181/D

2-3

MC68181

Initialization Timing

INITIALIZATION TIMING

(VCC = 1.8 to 3.6 V, TA = –30 to + 85°C)

Table 2-4 Initialization Timing

Characteristic

Conditions Symbol

Min

Max

Unit

Oscillator Start-up Time				—	tSTART	—	5	sec
	Hold Time			—	tRESET	200	—	ns
RESET	Hold Time			—	tRESET	200	—	ns
	High to		Low	—	tRHRL	76,800	76,800	T
RESET	High to	READY	Low	—	tRHRL	76,800	76,800	T
							Y

Oscillator Warmed Up to READY Low				CL = 50pf	tOWRL	—	1	sec

Note: T is one period of the 76.8 kHz clock source. From power-up, the oscillator start-up time can impact the availability

and period of clock strobes. This can affect the actual

high to

low timing.R

RESET

READY

VDD

Oscillator

tSTART

RESET

tRESET

READY

tOWRL

tRHRL

AA122

Figure 2-1

Startup Timing

PRELIMI

2-4

MC68181/D

MOTOROLA

MC68181

RESET Timing

RESET TIMING

(VCC = 1.8 to 3.6 V, TA = –30 to 85°C)

Table 2-5 Reset Timing

Characteristic

Conditions

Symbol

Min

Max

Unit

PRELIMINARY

RESET Pulse Width

—

tRL

200

—

Low to

High

—

tRLRH

—

200

RESET

READY

High to

Low

Requires stable

tRHRL

—

sec

RESET

READY

76.8 kHz clock source

RESET

tRL

READY

tRLRH

tRHRL

AA122

Figure 2-2 Reset Timing

MOTOROLA

MC68181/D

2-5

MC68181

Serial Peripheral Interface (SPI) Timing

SERIAL PERIPHERAL INTERFACE (SPI) TIMING

(VCC = 1.8 to 3.6 V, TA = –30 to +85°C)

Table 2-6 SPI Timing

	Characteristic	Conditions		Symbol		Min		Max	Unit


Operating Frequency		—		fOP		0		1	MHz
Cycle Time		—		tCYC		1000		—	ns
Select Lead Time		—		tLEAD1		200		—	ns
De-select Lag Time		—		tLAG1		200		—	ns
							Y
Select-to-Ready Time		Previous packet did not program an		t	RDY	—		80	μs
Select-to-Ready Time		address word; CL = 50 pf			RDY	—		80	μs
		Previous packet programmed an		t		—		420	μ	s
Select-to-Ready Time		address word; CL = 50 pf			RDY	R			μ
Ready High Time		—		tRHA		50		—	μs
Ready Lead Time		—		tLEAD2					μs
Ready Lead Time		—		tLEAD2		200		—	ns
Not Ready Lag Time		CL = 50pf		tLAG2		—		200	ns
MOSI Data Setup Time		—			t	200		—	ns
			NSU
MOSI Data Hold Time		—			tHI	200		—	ns
MISO Access Time		CL = 50pf		tAC		0		200	ns
MISO Disable Time		—		tDIS		—		300	ns
MISO Data Valid Time		CL = 50pf			tV	—		200	ns
MISO Data Hold Time		—		tHO		0		—	ns
	High Time	—		tSSH		200		—	ns
SS	High Time	—		tSSH		200		—	ns
SCK High Time		—		tSCKH		300		—	ns
SCK Low Time		—		tSCKL		300		—	ns
SCK Rise Time		20% to 70% VDD			tR			1	μs
SCK Fall Time		20% to 70% VDD			tF			1	μs

Note: PRELIMIWhen the host reprograms an address word with a Host-to-FLEX™ chip packet ID > 127 (decimal), there may be an added delay before FLEX™ chip is ready for another packet.

2-6

MC68181/D

MOTOROLA

MC68181

Serial Peripheral Interface (SPI) Timing

SS
			tSSH
READY
tRDY	tCYC	tLAG2		tRH
tLEAD1	tLEAD2	tF	tLAG1
tLEAD1	tR	tF	tLAG1
SCK
tSCKL	tSCKH			Tri-
Tri-				Tri-
stated	D31		D0	stated
MISO	D31		D0
tAC	tV	tHO	tDIS
MOSI	D31		D0
tSU	tHI			AA122
				AA122

	Figure 2-3	SPI Timing
PRELIMINARY
MOTOROLA	MC68181/D			2-7

MC68181

Serial Peripheral Interface (SPI) Timing

	Y
	R
N	A
N
PRELIMI

2-8

MC68181/D

MOTOROLA

<<< < Предыдущая 1 23 / 83 4 5 6 7 8 > Следующая >>>

Соседние файлы в папке motorola

#
06.01.2022282.65 Кб04n35rev2.pdf
#
06.01.2022300.73 Кб04n38rev2.pdf
#
06.01.2022114.56 Кб062v256.pdf
#
06.01.20221.57 Mб168175DS0.PDF
#
06.01.2022116.51 Кб068175PB0.PDF
#
06.01.20221.5 Mб068181DS0.PDF
#
06.01.202275.88 Кб068181PB0.PDF
#
06.01.202288.02 Кб06n135.pdf
#
06.01.202233.36 Кб06n138.pdf
#
06.01.2022128.47 Кб074AC4020.PDF
#
06.01.2022122.92 Кб074AC4040.PDF