HD74BC640A 查看數據表（PDF） - Renesas Electronics
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HD74BC640A Datasheet PDF : 8 Pages
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HD74BC640A
Switching Characteristics (CL = 50 pF)
Item
Propagation delay time
Output enable time
Output disable time
Input capacitance
Output capacitance
Ta = 25°C
Symbol
VCC = 5.0 V
Min
Max
tPLH
3.0
6.0
tPHL
3.0
6.0
tPLH
3.0
6.0
tPHL
3.0
6.0
tZH
3.0
9.0
tZL
3.0
9.0
tZH
3.0
9.0
tZL
3.0
9.0
tHZ
3.0
8.0
tLZ
3.0
8.0
tHZ
3.0
8.0
tLZ
3.0
8.0
CIN
3.0 (Typ)
CI/O
15.0 (Typ)
Ta = –40 to +85°C
VCC = 5.0 V ±10%
Min
Max Unit
Test Conditions
3.0
7.0
ns An to Bn
3.0
7.0
3.0
7.0
ns Bn to An
3.0
7.0
3.0
11.0
ns G to Bn
3.0
11.0
3.0
11.0
ns G to An
3.0
11.0
3.0
10.0
ns G to Bn
3.0
10.0
3.0
10.0
ns G to An
3.0
10.0
—
pF VIN = VCC or GND
—
pF VI/O = VCC or GND
Rev.2.00, Jul.16.2004, page 4 of 7
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