HD74HC160 Datasheet, PDF (11/15 Pages) Hitachi Semiconductor – Synchronous Decade,4-bit Binary,Counter(Direct Clear,Synchronous Clear)

HD74HC160, HD74HC161, HD74HC162, HD74HC163
Function Table
Count Enable/Disable
Load
H
L
X
X
X
H : High level
Control Inputs
Enable P
Enable T
H
H
H
H
L
H
H
L
L
L
L : Low level X : Irrelevant
QA to QD
Count
No count
No count
No count
No count
Test Circuit
Measurement point
Result at Outputs
Ripple Carry Output
High when QA to QD are maximum
High when QA to QD are maximum
L
L
C_L*
Note: C_L includes the probe and fig capacitance.
Rev.2.00, Oct 11, 2005 page 11 of 14