HD74HC165 Datasheet, PDF (5/8 Pages) Hitachi Semiconductor – Parallel-load 8-bit Shift Register

HD74HC165
Test Circuit
Measurement point
C_L*
Note: C_L includes the probe and fig capacitance.
Waveforms
Shift / Load
Serial Input
Clock
6ns
90%
50%
10%
t _rem
6ns
50%
t _su
90%
50%
t_h
10%
50%
10%
90%
90%
10%
6ns
90%
10%
6ns
6ns
50%
t _su
t_h
50%
Notes 1. The eight data inputs and the clock-inhibit input are low.
Results are monitored at output QH at tn+7.
2. Input pulse : PRR ≤ 1MHz, duty cycle 50%
V_CC
GND
50%
V_CC
GND
V_CC
GND
Rev.3.00, Jan 31, 2006 page 5 of 7