HD74LS160A Datasheet, PDF (3/11 Pages) Hitachi Semiconductor – Synchronous Decade Counters(direct clear)

HD74LS160A
Recommended Operating Conditions
Item
Supply voltage
Output current
Operating temperature
Clock frequency
Clock pulse width
Clear pulse width
A, B, C, D
Setup time
Enable P, T
Load
Hold time
Symbol
V_CC
I_OH
I_OL
Topr
ƒ_clock
t_{w (clock)}
t_{w (clear)}
t_su
t_h
Min
4.75
—
—
–20
0
25
20
20
20
20
3
Typ
5.00
—
—
25
—
—
—
—
—
—
—
Typical Clear, Preset, and Inhibit Sequence
Clear
Load
A
Data ^B
Inputs _C
D
Clock
Enable P
Enable T
QA
QB
Outputs
QC
QD
Ripple Carry
Output
Clear
789012
Count
Preset
(Load)
Max
5.25
–400
8
75
25
—
—
—
—
—
—
Unit
V
µA
mA
°C
MHz
ns
ns
ns
ns
ns
ns
Inhibit
Rev.3.00, Jul.15.2005, page 3 of 10