HD74HC112FPEL 데이터 시트보기 (PDF) - Renesas Electronics

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HD74HC112FPEL

Dual 4-bit Binary Counters

Renesas Electronics 

HD74HC112

Waveforms

• Waveform − 1

tr

tf

90 %

tw (L)

VCC

Clock

50 % 50 %

50 % 50 %

10 %

tw (H)

10 %

0V

tTLH

tTHL

90 %

90 %

VOH

Q

50 %

50 %

10 %

tPLH

tPHL

10 %

VOL

tPHL

tPLH

90 %

VOH

Q

50 %

50 %

10 %

10 %

VOL

tTHL

tTLH

• Waveform − 2

Clear

Preset

Q

Q

tf

tr

90 %

90 %

50 %

10 %

50 %

10 %

tw(clear)

tf

tr

tPHL

90 %

50 %

10 %

tTHL

tPLH

50 %

10 %

90 %

90 %

50 %

10 %

tw(preset)

tPLH

90 %

50 %

50 %

tPHL

50 %

tTLH

VCC

0V

VCC

0V

VOH

VOL

VOH

VOL

Notes: 1. Input waveform: PRR ≤ 1 MHz, Zo = 50 Ω, tr ≤ 6 ns, tf ≤ 6 ns

2. The output are measured one at a time with one transition per measurement.

Rev.2.00, Oct 11, 2005 page 5 of 6

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