HD74LV595ATELL(2004) 查看數據表（PDF） - Renesas Electronics

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HD74LV595ATELL
(Rev.:2004)

8-bit Shift Registers with 3-state Outputs

Renesas Electronics 

HD74LV595A

Waveform − 4

tf

tr

90 %

90 %

VCC

G

50 % VCC

50 % VCC

10 %

10 %

0V

tZL

tLZ

VCC

Waveform − A

50 % VCC

tZH

VOL + 0.3 V

tHZ

VOL

Waveform − B

50 % VCC

VOH − 0.3 V

VOH

0V

Waveform − 5

SER

SRCLK

Valid

50% VCC

tsu

th

50% VCC

VCC

GND

VCC

GND

Waveform − 6

SRCLK

RCLK

50% VCC

tsu

50%

VCC

tw

VCC

GND

VCC

GND

Notes: 1. Input waveform: PRR ≤ 1 MHz, Zo = 50 Ω, t ≤ 3 ns, t ≤ 3 ns

2. Waveform−A is for an output with internal conditions such that the output is low except when disabled

by the output control.

3. Waveform−B is for an output with internal conditions such that the output is high except when disabled

by the output control.

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

Rev.2.00 Jun. 28, 2004 page 11 of 13

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