CD54ACT161 Datasheet, PDF (3/14 Pages) Texas Instruments – 4-BIT SYNCHRONOUS BINARY COUNTERS

logic diagram (positive logic)
LOAD ⁹
ENT ¹⁰
ENP ⁷
2
CLK
1
CLR
CD54ACT161, CD74ACT161
4-BIT SYNCHRONOUS BINARY COUNTERS
SCHS298B – APRIL 2000 – REVISED MARCH 2003
LD^†
CK^†
CK LD
R
15 _RCO
A3
B4
M1
G2
1, 2T/1C3
G4
3D
4R
M1
G2
1, 2T/1C3
G4
3D
4R
14
QA
13
QB
C5
M1
G2
1, 2T/1C3
G4
3D
4R
12
QC
6
D
M1
G2
1, 2T/1C3
G4
3D
4R
11
QD
† _{For simplicity, routing of complementary signals LD and CK is not shown on this overall logic diagram. The uses of these signals are shown}
on the logic diagram of the D/T flip-flops.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
3