74HC155 查看數據表（PDF） - Hitachi -> Renesas Electronics

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74HC155

Dual 2-to-4-line Decoders/Demultiplexers

Hitachi -> Renesas Electronics 

HD74HC155

AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns)

Ta = 25°C

Ta = –40 to

+85°C

Item

Symbol

Propagation delay tPLH

time

t PHL

VCC (V)

2.0

4.5

6.0

Min Typ Max Min

— — 160 —

— 13 32 —

— — 27 —

Max Unit

200 ns

40

34

2.0

— — 160 — 200

4.5

— 15 32 — 40

6.0

— — 27 — 34

2.0

— — 145 — 180

4.5

— 14 29 — 36

6.0

— — 25 — 31

Output rise/fall

t TLH

time

t THL

2.0

— — 75 — 95 ns

4.5

— 5 15 — 19

6.0

— — 13 — 16

Input capacitance Cin

—

— 5 10 — 10 pF

Test Conditions

A, B, 2C, 1G or 2G to Y

A or B to Y

1C to Y

5

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