74ALS161B Datasheet, PDF (3/14 Pages) NXP Semiconductors – 4-bit binary counter

Philips Semiconductors
4-bit binary counter
Product specification
74ALS161B/74ALS163B
STATE DIAGRAM
0
1
2
3
4
15
5
14
6
13
7
12
11
10
9
8
APPLICATIONS
V_CC
CLOCK
PE ^{D0 D1 D2 D3}
CEP
CET 74ALS163B TC
CP
SR _{Q0 Q1 Q2 Q3}
SF00664
SC00086
Figure 1. Maximum Count Modifying Scheme
Terminal Count = 6
H H = Enable count
or
L L = Disable count
PE ^{D0 D1 D2 D3}
CEP _74ALS163B
CET
TC
CP
SR _{Q0 Q1 Q2 Q3}
PE ^{D0 D1 D2 D3}
CEP _74ALS163B
CET
TC
CP
SR _{Q0 Q1 Q2 Q3}
PE ^{D0 D1 D2 D3}
CEP _74ALS163B
CET
TC
CP
SR _{Q0 Q1 Q2 Q3}
PE ^{D0 D1 D2 D3}
CEP _74ALS163B
CET
TC
CP
SR _{Q0 Q1 Q2 Q3}
PE ^{D0 D1 D2 D3}
CEP _74ALS163B
CET
TC
CP
SR _{Q0 Q1 Q2 Q3}
CP
Figure 2. Synchronous Multistage Counting Scheme
SC00087
1991 Feb 08
3