HD74LV163A Datasheet, PDF (15/19 Pages) Hitachi Semiconductor – Synchronous 4-bit Binary Counter (Synchronous Clear)

Waveform – 5
Cascade mode
(set to maximum count number)
ENT
50%
HD74LV163A
50%
VCC
GND
CARRY
tpLH
50%
tpHL
VOH
50%
VOL
Note: 1. Input waveform: PRR≤1 MHz, duty cycle 50%, t_r ≤3 ns, t _f ≤3 ns
Application
Cascade circuitry
H: COUNT
L: DISABLE
INPUTS
H: COUNT
L: DISABLE
CLR
CLK
LD A B C D
ENP
ENT
CARRY
CK
CLR QA QB QC QD
OUTPUT
INPUTS
LD A B C D
ENP
ENT
CARRY
CK
CLR QA QB QC QD
OUTPUT
INPUTS
LD A B C D
ENP
ENT
CARRY
CK
CLR QA QB QC QD
OUTPUT
to next stages
15