SN54ALS169B, SN54AS169A, SN74ALS169B, SN74AS169A

SYNCHRONOUS 4BIT UP/DOWN BINARY COUNTERS

SDAS125B − MARCH 1984 − REVISED DECEMBER 1994

2−5

POST OFFICE BOX 655303

POST OFFICE BOX 1443

recommended operating conditions

SN54ALS169B

SN74ALS169B

UNIT

MIN

NOM

MAX

MIN

NOM

MAX

UNIT

VCC

Supply voltage

4.5

5

5.5

4.5

5

5.5

V

VIH

High-level input voltage

2

2

V

VIL

Low-level input voltage

0.7

0.8

V

IOH

High-level output current

− 0.4

− 0.4

mA

IOL

Low-level output current

4

8

mA

fclock

Clock frequency

0

22

0

40

MHz

tw

Pulse duration, CLK high or low

14

12.5

ns

A, B, C, or D

20

15

tsu

Setup time before CLK

↑

ENP or ENT

25

15

ns

tsu

Setup time before CLK

↑

LOAD

20

15

ns

U/D

28

15

th

Hold time, data after CLK

↑

0

0

ns

TA

Operating free-air temperature

−55

125

0

70

°C

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

SN54ALS169B

SN74ALS169B

UNIT

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

MIN

TYP†

MAX

UNIT

VIK

VCC = 4.5 V,

II = − 18 mA

− 1.5

− 1.5

V

VOH

VCC = 4.5 V to 5.5 V,

IOH = − 0.4 mA

VCC −2

VCC −2

V

VOL

VCC = 4.5 V

IOL = 4 mA

0.25

0.4

0.25

0.4

V

VOL

VCC = 4.5 V

IOL = 8 mA

0.35

0.5

V

II

VCC = 5.5 V,

VI = 7 V

0.1

0.1

mA

IIH

VCC = 5.5 V,

VI = 2.7 V

20

20

µA

IIL

VCC = 5.5 V,

VI = 0.4 V

− 0.2

− 0.2

mA

IO‡

VCC = 5.5 V,

VO = 2.25 V

−20

−112

−30

−112

mA

ICC

VCC = 5.5 V

15

25

15

25

mA

† All typical values are at VCC = 5 V, TA = 25°C.

‡ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.