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PIC18F2455/2550/4455/4550

TABLE 28-2: COMPARATOR SPECIFICATIONS

Operating Conditions: 3.0V < VDD < 5.5V, -40°C < TA < +85°C (unless otherwise stated)

Param

Sym

Characteristics

Min

Typ

Max

Units

Comments

No.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D300

VIOFF

Input Offset Voltage

±5.0

±10

mV

 

 

 

 

 

 

 

 

 

D301

VICM

Input Common Mode Voltage*

0

VDD – 1.5

V

 

 

 

 

 

 

 

 

 

D302

CMRR

Common Mode Rejection Ratio*

55

dB

 

 

 

 

 

 

 

 

 

300

TRESP

Response Time*(1)

150

400

ns

PIC18FXXXX

300A

 

 

150

600

ns

PIC18LFXXXX,

 

 

 

 

 

 

 

VDD = 2.0V

 

 

 

 

 

 

 

 

301

TMC2OV

Comparator Mode Change to

10

μs

 

 

 

Output Valid*

 

 

 

 

 

 

 

 

 

 

 

 

 

*These parameters are characterized but not tested.

Note 1: Response time measured with one comparator input at (VDD – 1.5)/2, while the other input transitions from VSS to VDD.

TABLE 28-3: VOLTAGE REFERENCE SPECIFICATIONS

Operating Conditions: 3.0V < VDD < 5.5V, -40°C < TA < +85°C (unless otherwise stated)

Param

Sym

Characteristics

Min

Typ

Max

Units

Comments

No.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D310

VRES

Resolution

VDD/24

VDD/32

LSb

 

 

 

 

 

 

 

 

 

D311

VRAA

Absolute Accuracy

1/4

1

LSb

Low Range (CVRR = 1)

 

 

 

1/2

LSb

High Range (CVRR = 0)

 

 

 

 

 

 

 

 

D312

VRUR

Unit Resistor Value (R)*

2k

Ω

 

310

TSET

Settling Time*(1)

10

μs

 

*These parameters are characterized but not tested.

Note 1: Settling time measured while CVRR = 1 and CVR3:CVR0 transitions from ‘0000’ to ‘1111’.

2007 Microchip Technology Inc.

Preliminary

DS39632D-page 375

PIC18F2455/2550/4455/4550

TABLE 28-4: USB MODULE SPECIFICATIONS

Operating Conditions: -40°C < TA < +85°C (unless otherwise stated).

Param

Sym

Characteristic

Min

Typ

Max

Units

Comments

No.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D313

VUSB

USB Voltage

3.0

3.6

V

Voltage on bus must be in this

 

 

 

 

 

 

 

range for proper USB

 

 

 

 

 

 

 

operation

 

 

 

 

 

 

 

 

D314

IIL

Input Leakage on Pin

±1

μA

VSS ≤ VPAD ≤ VDD;

 

 

 

 

 

 

 

pin at high impedance

 

 

 

 

 

 

 

 

D315

VILUSB

Input Low Voltage for USB

0.8

V

For VUSB range

 

 

Buffer

 

 

 

 

 

 

 

 

 

 

 

 

 

D316

VIHUSB

Input High Voltage for USB

2.0

V

For VUSB range

 

 

Buffer

 

 

 

 

 

 

 

 

 

 

 

 

 

D317

VCRS

Crossover Voltage

1.3

 

2.0

V

Voltage range for pad_dp and

 

 

 

 

 

 

 

pad_dm crossover to occur

 

 

 

 

 

 

 

 

D318

VDIFS

Differential Input Sensitivity

0.2

V

The difference between D+

 

 

 

 

 

 

 

and D- must exceed this value

 

 

 

 

 

 

 

while VCM is met

 

 

 

 

 

 

 

 

D319

VCM

Differential Common Mode

0.8

2.5

V

 

 

 

Range

 

 

 

 

 

 

 

 

 

 

 

 

 

D320

ZOUT

Driver Output Impedance

28

44

Ω

 

D321

VOL

Voltage Output Low

0.0

0.3

V

1.5 kΩ load connected to 3.6V

D322

VOH

Voltage Output High

2.8

3.6

V

15 kΩ load connected to

 

 

 

 

 

 

 

ground

 

 

 

 

 

 

 

 

TABLE 28-5: USB INTERNAL VOLTAGE REGULATOR SPECIFICATIONS

Operating Conditions: -40°C < TA < +85°C (unless otherwise stated).

Param

Sym

Characteristics

Min

Typ

Max

Units

Comments

No.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D323

VUSBANA

Regulator Output Voltage*

3.0

3.6

V

 

 

 

 

 

 

 

 

 

D324

CUSB

External Filter Capacitor

220

nF

Must hold sufficient charge

 

 

Value*

 

 

 

 

for peak load with minimal

 

 

 

 

 

 

 

voltage drop

 

 

 

 

 

 

 

 

*These parameters are characterized but not tested. Parameter numbers not yet assigned for these specifications.

DS39632D-page 376

Preliminary

2007 Microchip Technology Inc.

PIC18F2455/2550/4455/4550

FIGURE 28-3: HIGH/LOW-VOLTAGE DETECT CHARACTERISTICS

For VDIRMAG = 1: VDD

VHLVD

(HLVDIF set by hardware)

 

 

 

 

 

 

(HLVDIF can be

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

cleared in software)

 

VHLVD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

For VDIRMAG = 0:

VDD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HLVDIF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TABLE 28-6: HIGH/LOW-VOLTAGE DETECT CHARACTERISTICS

Standard Operating Conditions (unless otherwise stated)

Operating temperature -40°C TA +85°C for industrial

Param

Symbol

Characteristic

Min

Typ

Max

Units

Conditions

No.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D420

 

HLVD Voltage on VDD

HLVDL<3:0> = 0000

2.06

2.17

2.28

V

 

 

 

Transition High-to-Low

 

 

 

 

 

 

 

 

HLVDL<3:0> = 0001

2.12

2.23

2.34

V

 

 

 

 

 

 

 

 

 

 

 

 

 

HLVDL<3:0> = 0010

2.24

2.36

2.48

V

 

 

 

 

 

 

 

 

 

 

 

 

 

HLVDL<3:0> = 0011

2.32

2.44

2.56

V

 

 

 

 

 

 

 

 

 

 

 

 

 

HLVDL<3:0> = 0100

2.47

2.60

2.73

V

 

 

 

 

 

 

 

 

 

 

 

 

 

HLVDL<3:0> = 0101

2.65

2.79

2.93

V

 

 

 

 

 

 

 

 

 

 

 

 

 

HLVDL<3:0> = 0110

2.74

2.89

3.04

V

 

 

 

 

 

 

 

 

 

 

 

 

 

HLVDL<3:0> = 0111

2.96

3.12

3.28

V

 

 

 

 

 

 

 

 

 

 

 

 

 

HLVDL<3:0> = 1000

3.22

3.39

3.56

V

 

 

 

 

 

 

 

 

 

 

 

 

 

HLVDL<3:0> = 1001

3.37

3.55

3.73

V

 

 

 

 

 

 

 

 

 

 

 

 

 

HLVDL<3:0> = 1010

3.52

3.71

3.90

V

 

 

 

 

 

 

 

 

 

 

 

 

 

HLVDL<3:0> = 1011

3.70

3.90

4.10

V

 

 

 

 

 

 

 

 

 

 

 

 

 

HLVDL<3:0> = 1100

3.90

4.11

4.32

V

 

 

 

 

 

 

 

 

 

 

 

 

 

HLVDL<3:0> = 1101

4.11

4.33

4.55

V

 

 

 

 

 

 

 

 

 

 

 

 

 

HLVDL<3:0> = 1110

4.36

4.59

4.82

V

 

 

 

 

 

 

 

 

 

 

2007 Microchip Technology Inc.

Preliminary

DS39632D-page 377

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