MC74VHC245

VHC Data – Advanced CMOS Logic

DL203 — Rev 1

3

MOTOROLA

DC ELECTRICAL CHARACTERISTICS

Unit

TA = – 40 to 85°C

TA = 25°C

VCC

V

Test Conditions

Parameter

Symbol

Unit

Max

Min

Max

Typ

Min

VCC

V

Test Conditions

Parameter

Symbol

IOZ

Maximum Three–State

Leakage Current

Vin = VIL or VIH

Vout = VCC or GND

5.5

± 0.25

± 2.5

µA

ICC

Maximum Quiescent

Supply Current

Vin = VCC or GND

5.5

4.0

40.0

µA

Sb l

P

T

C

di i

TA = 25°C

TA = – 40 to 85°C

Ui

Symbol

Parameter

Test Conditions

Min

Typ

Max

Min

Max

Unit

tPLH,

tPHL

Maximum Propagation Delay,

A to B or B to A

VCC = 3.3 ± 0.3V

CL = 15pF

CL = 50pF

5.8

8.3

8.4

11.9

1.0

1.0

10.0

13.5

ns

VCC = 5.0 ± 0.5V

CL = 15pF

CL = 50pF

4.0

5.5

5.5

7.5

1.0

1.0

6.5

8.5

tPZL,

tPZH

Output Enable Time

OE to A or B

VCC = 3.3 ± 0.3V

CL = 15pF

RL = 1 kΩ

CL = 50pF

8.5

11.0

13.2

16.7

1.0

1.0

15.5

19.0

ns

VCC = 5.0 ± 0.5V

CL = 15pF

RL = 1 kΩ

CL = 50pF

5.8

7.3

8.5

10.6

1.0

1.0

10.0

12.0

tPLZ,

tPHZ

Output Disable Time

OE to A or B

VCC = 3.3 ± 0.3V

CL = 50pF

RL = 1 kΩ

11.5

15.8

1.0

18.0

ns

VCC = 5.0 ± 0.5V

CL = 50pF

RL = 1 kΩ

7.0

9.7

1.0

11.0

tOSLH,

tOSHL

Output to Output Skew

VCC = 3.3 ± 0.3V

CL = 50pF

(Note 1.)

1.5

1.5

pF

VCC = 5.0 ± 0.5V

CL = 50pF

(Note 1.)

1.0

1.0

ns

Cin

Maximum Input Capacitance

DIR, OE

4

10

10

pF

CI/O

Maximum Three–State

I/O Capacitance

8

pF

C

PDi

i

i

C

i

(N

2 )

Typical @ 25

°C, VCC = 5.0V

F

CPD

Power Dissipation Capacitance (Note 2.)

21

pF

1. Parameter guaranteed by design. tOSLH = |tPLHm – tPLHn|, tOSHL = |tPHLm – tPHLn|.

2. CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load.

dynamic power consumption; PD = CPD  VCC2  fin + ICC  VCC.

Sb l

P

TA = 25°C

Ui

Symbol

Parameter

Typ

Max

Unit

VOLP

Quiet Output Maximum Dynamic VOL

0.9

1.2

V

VOLV

Quiet Output Minimum Dynamic VOL

–0.9

–1.2

V

VIHD

Minimum High Level Dynamic Input Voltage

3.5

V

VILD

Maximum Low Level Dynamic Input Voltage

1.5

V