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HD74HC643 Datasheet(PDF) 6 Page - Renesas Technology Corp

Part # HD74HC643
Description  Octal Bus Transceivers (with 3-state outputs)
PDF  11 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD74HC643 Datasheet(HTML) 6 Page - Renesas Technology Corp

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HD74HC640, HD74HC643
Rev.2.00 Mar 30, 2006 page 6 of 10
HD74HC643
VCC
A1
OPEN
GND
C =
50 pF
G
DIR
B1
S1
1 k
Ω
VCC
VCC
VCC
S2
L
Zout = 50
Ω
TEST
S2
t
/ t
PLH
PHL
OPEN
GND
t
/ t
ZH
HZ
t
/ t
ZL
LZ
Zout = 50
Ω
Notes : 1. CL includes probe and jig capacitance.
2. A2–B2, A3–B3, A4–B4, A5–B5, A6–B6, A7–B7, A8–B8 are identical to above load circuit.
3. S1 is a input / output swich.
Output
Input
Pulse Generator
Input
Pulse Generator



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