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HD74LS162A Datasheet, PDF (5/11 Pages) Hitachi Semiconductor – Synchronous Decade Counters(synchronous clear)
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HD74LS162A
Timing Method
Clock
Clear
Load
Data
Outputs
A to D
Enable
P or T
tw (CK)
1.3V
1.3V
tsu th
1.3V
1.3V
1.3V
tsu th
3V
1.3V
0V
3V
0V
3V
1.3V
1.3V
0V
tsu th
3V
1.3V
1.3V
tsu
0V
th
3V
1.3V 1.3V
0V
Testing Method
Test Circuit
4.5V
P.G.
Zout = 50Ω
Input
P.G.
Zout = 50Ω
Input
VCC Output QA
Load
CK
A
B
C
D
RL Load circuit 1
QA
CL
Output QB
QB
Same as Load Circuit 1.
Output QC
QC
Output QD
P
T
QD
Ripple
CLR Carry
Ripple
Carry
Same as Load Circuit 1.
Same as Load Circuit 1.
Same as Load Circuit 1.
Notes: 1. CL includes probe and jig capacitance.
2. All diodes are 1S2074(H).
Rev.3.00, Jul.15.2005, page 5 of 10
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