MC54/74HC157A

High–Speed CMOS Logic Data

DL129 — Rev 6

3

MOTOROLA

Guaranteed Limit

Unit

v 125_C

v 85_C

– 55 to

25

_C

VCC

V

Test Conditions

Parameter

Symbol

VOL

Maximum Low–Level Output

Voltage

Vin = VIL

|Iout| v 20 µA

2.0

4.5

6.0

0.1

0.1

0.1

0.1

0.1

0.1

0.1

0.1

0.1

V

Vin = VIL

|Iout| v 2.4 mA

|Iout| v 6.0 mA

|Iout| v 7.8 mA

3.0

4.5

6.0

0.26

0.26

0.26

0.33

0.33

0.33

0.4

0.4

0.4

Iin

Maximum Input Leakage Current

Vin = VCC or GND

6.0

± 0.1

± 1.0

± 1.0

µA

IOZ

Maximum Three–State Leakage

Current

Output in High–Impedance State

Vin = VIL or VIH

Vout = VCC or GND

6.0

± 0.5

± 5.0

± 10

µA

ICC

Maximum Quiescent Supply

Current (per Package)

Vin = VCC or GND

Iout = 0 µA

6.0

4.0

40

160

µA

NOTE: Information on typical parametric values can be found in Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D).

Sb l

P

V

Guaranteed Limit

Ui

Symbol

Parameter

VCC

V

– 55 to

25

_C

v 85_C

v 125_C

Unit

tPLH,

tPHL

Maximum Propagation Delay, Input A or B to Output Y

(Figures 1 and 4)

2.0

3.0

4.5

6.0

105

65

21

18

130

85

26

22

160

115

32

27

ns

tPLH,

tPHL

Maximum Propagation Delay, Select to Output Y

(Figures 2 and 4)

2.0

3.0

4.5

6.0

110

70

22

19

140

90

28

24

165

115

33

28

ns

tPLH,

tPHL

Maximum Propagation Delay, Output Enable to Output Y

(Figures 3 and 4)

2.0

3.0

4.5

6.0

100

60

20

17

125

80

25

21

150

110

30

26

ns

tTLH,

tTHL

Maximum Output Transition Time, Any Output

(Figures 1 and 4)

2.0

3.0

4.5

6.0

75

27

15

13

95

32

19

16

110

36

22

19

ns

Cin

Maximum Input Capacitance

—

10

10

10

pF

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).

C

PDi

i

i

C

i

(P

P

k

)*

Typical @ 25

°C, VCC = 5.0 V

F

CPD

Power Dissipation Capacitance (Per Package)*

33

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).