HD74LV245A 데이터 시트보기 (PDF) - Hitachi -> Renesas Electronics

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HD74LV245A

Octal Bus Transceivers with 3-state Outputs

Hitachi -> Renesas Electronics 

HD74LV245A

Test Circuit

VCC

VCC

OE

Input

Pulse generator

Zout = 50 Ω

DIR

S1

A1

B1

Output

1 kΩ S2

CL=

15 or 50 pF

OPEN

GND

VCC

TEST

tPLH /tPHL

Notes : 1. C L includes the probe and jig capacitance.

2. A2–B2 to A8–B8 are idential to above load circuit.

t ZH/tHZ

tZL /tLZ

3. S1 : Input–Output change switch.

S2

OPEN

GND

VCC

10

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