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| HD74BC240A Datasheet, PDF (5/9 Pages) Hitachi Semiconductor – Octal Buffers/Line Drivers With 3 State Outputs | |||
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HD74BC240A
Test Circuit
VCC
Input
Pulse Generator
Zout = 50 â¦
VCC
Output
G
1Y1
1A1
1A2
500 â¦
CL =
450 â¦
50 pF
50 ⦠Scope
Output
1A3
1Y2
Same as above
load circuit
1A4
1Y3
Same as above
load circuit
1Y4
Same as above
load circuit
Notes:
1. CL includes probe and jig capacitance.
2. 2G, 2A1-2A4 to 2Y1-2Y4 are identical to above load circuit.
3. Open: tPLH, tPHL, tZH, tHZ
7 V: tZL, tLZ
*3
OPEN
7V
Rev.3.00, Jul.16.2004, page 5 of 8
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