HD74HC165FPEL Просмотр технического описания (PDF) - Renesas Electronics

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HD74HC165FPEL

Parallel-load 8-bit Shift Register

Renesas Electronics 

HD74HC165

Test Circuit

Measurement point

CL*

Note: CL includes the probe and fig capacitance.

Waveforms

Shift / Load

Serial Input

Clock

6ns

90%

50%

10%

t rem

6ns

50%

t su

90%

50%

th

10%

50%

10%

90%

90%

10%

6ns

90%

10%

6ns

6ns

50%

t su

th

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%

VCC

GND

50%

VCC

GND

VCC

GND

Rev.3.00, Jan 31, 2006 page 5 of 7

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