HD74HCT08A 查看數據表（PDF） - Hitachi -> Renesas Electronics
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HD74HCT08A Datasheet PDF : 8 Pages
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HD74HCT08A
Logic Diagram (1/4 Circuit)
A
Y
B
Electrical Characteristics
Item
Symbol VCC (V)
Output voltage VOH
4.5
4.5
VOL
4.5
4.5
Input current
II
5.5
Quiescent supply ICC
5.5
voltage
Ta = 25°C
Min Typ
4.40 —
3.98 —
——
——
— ±0.1
——
Max
—
—
0.10
0.26
±100
2.0
Ta = –40 to 85°C Unit Test Conditions
Min Max
4.40
3.84
—
—
—
—
—
V
—
0.10
0.33
±1000 nA
20
µA
IO = –20 µA
IO = –4 mA
IO = 20 µA
IO = 4 mA
VI = VCC or GND
VI = VCC or GND,
IO = 0
Switching Characteristics (CL = 50 pF)
Item
Symbol VCC (V)
Propagation
t PLH
4.5
delay time
t PHL
5.5
Output rise / fall tr
4.5
time
tf
5.5
Input capacitance CI
—
Power dissipation CPD
—
capacitance
Ta = 25°C
Min Typ
— 11
— 10
—7
—6
—3
— 20
Ta = –40 to 85°C Unit Input Output
Max Min Max
FROM TO
19 —
24
ns A or B Y
18 —
22
15 —
19
ns
Each
13 —
16
output
10 —
10
pF
——
—
pF
4
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