CD54HC4040 Datasheet, PDF (2/15 Pages) Texas Instruments – High-Speed CMOS Logic 12-Stage Binary Counter

CD54HC4040, CD74HC4040, CD54HCT4040, CD74HCT4040
Functional Diagram
V_CC
16
10
INPUT
PULSES
11
MASTER
RESET
12-STAGE
RIPPLE
COUNTER
8
GND
9
7 ^Q1’
6 ^Q2
Q₃
5
Q₄
3
2 ^Q5
4 ^Q6
13 ^Q7
Q₈
12
Q₉
14
Q₁₀
15
Q₁₁
1
Q₁₂
BUFFERED
OUTPUTS
TRUTH TABLE
CP COUNT
MR
OUTPUT STATE
↑
L
No Change
↓
L
Advance to Next State
X
H
All Outputs Are Low
H = High Voltage Level, L = Low Voltage Level, X = Don’t Care,
↑ = Transition from Low to High Level, ↓ = Transition from High to Low.
2