HD74LS192 Datasheet, PDF (3/11 Pages) Hitachi Semiconductor – Synchronous Up/Down Decade Counters(dual clock lines)

HD74LS192
Block Diagram
Data
Input A
Down Count
Up Count
Borrow
Output
Carry
Output
QA
Output QA
T
QA
Data
Input B
QB
Output QB
T
QB
Data
Input C
QC
Output QC
T
QC
Data
Input D
Clear
Load
QD
Output QD
T
QD
Absolute Maximum Ratings
Item
Symbol
Ratings
Unit
Supply voltage
V_CC
7
V
Input voltage
V_IN
7
V
Power dissipation
P_T
400
mW
Storage temperature
Tstg
–65 to +150
°C
Note: Voltage value, unless otherwise noted, are with respect to network ground terminal.
Rev.2.00, Feb.18.2005, page 3 of 10