SN74F168

SYNCHRONOUS 4BIT UP/DOWN DECADE COUNTER

SDFS057A − D2932, MARCH 1987 − REVISED OCTOBER 1993

2−2

POST OFFICE BOX 655303

POST OFFICE BOX 1443

14

13

12

11

CTRDIV10

LOAD

1, 7D

3

A

4

B

5

C

6

D

M2 [COUNT]

M1 [LOAD]

9

2,3,5,6+/C7

G5

10

15

3,5CT = 9

QA

QB

QC

QD

G6

7

2

CLK

1

2

4

8

U/D

M4 [DOWN]

M3 [UP]

1

2,4,5,6 −

ENT

ENP

RCO

4,5CT = 0

† This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.