HD74LV245A 查看數據表（PDF） - Hitachi -> Renesas Electronics
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HD74LV245A Datasheet PDF : 15 Pages
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HD74LV245A
Switching Characteristics
• VCC = 2.5 ± 0.2 V
Ta = 25°C
Ta = –40 to 85°C
Item
Propagation
delay time
Enable time
Disable
time
Symbol Min Typ Max Min
tPLH
— 8.3 13.0 1.0
tPHL
— 11.2 15.9 1.0
tZH
— 11.8 19.9 1.0
tZL
— 14.1 22.7 1.0
tHZ
— 11.8 18.1 1.0
tLZ
— 17.6 23.1 1.0
Max
15.0
18.0
22.0
Unit Test Conditions
ns CL = 15 pF
CL = 50 pF
ns CL = 15 pF
26.0
20.0
CL = 50 pF
ns CL = 15 pF
25.0
CL = 50 pF
FROM
(Input)
A or B
TO
(Output)
B or A
OE
A or B
OE
A or B
• VCC = 3.3 ± 0.3 V
Ta = 25°C
Ta = –40 to 85°C
Item
Propagation
delay time
Enable time
Disable
time
Symbol Min Typ Max Min
tPLH
— 5.9 8.4 1.0
tPHL
— 7.9 11.9 1.0
tZH
— 8.2 13.2 1.0
tZL
— 9.9 16.7 1.0
tHZ
— 9.6 16.5 1.0
tLZ
— 13.9 19.8 1.0
Max
10.0
13.5
15.5
Unit Test Conditions
ns CL = 15 pF
CL = 50 pF
ns CL = 15 pF
19.0
19.5
CL = 50 pF
ns CL = 15 pF
22.0
CL = 50 pF
FROM
(Input)
A or B
TO
(Output)
B or A
OE
A or B
OE
A or B
7
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