Datasheet

74HC_HCT193 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 4 — 24 June 2013 22 of 30
NXP Semiconductors
74HC193; 74HCT193
Presettable synchronous 4-bit binary up/down counter
12. Application information
Fig 17. Application for cascaded up/down counter with parallel load
001aag420
data input
IC1 IC2
data output
up clock
down clock
carry
borrow
asynchronous
parallel load
reset
D0 D1 D2 D3
Q0 Q1 Q2 Q3
TCU
TCD
MR
CPU
CPD
PL
D0 D1 D2 D3
Q0 Q1 Q2 Q3
TCU
TCD
MR
CPU
CPD
PL