HCF4020B Datasheet, PDF (2/11 Pages) STMicroelectronics – RIPPLE-CARRY BINARY COUNTER/DIVIDERS 14 STAGE

HCF4020B
IINPUT EQUIVALENT CIRCUIT
FUNCTIONAL DIAGRAM
PIN DESCRIPTION
PIN N°
9, 7, 5, 4, 6,
13, 12, 14,
15, 1, 2, 3
11
10
8
16
SYMBOL NAME AND FUNCTION
Q1, Q4 to
Q14
14 Buffered Outputs
RESET
Φ
V_SS
V_DD
Reset Input
Input Pulses
Negative Supply Voltage
Positive Supply Voltage
TRUTH TABLE
Φ
X
X : Don’t Care
LOGIC DIAGRAM
RESET
H
L
L
OUTPUT STATE
ALL OUTPUTS = "L"
NO CHANGE
ADVANCE TO NEXT STATE
2/11