HD74HC443 查看數據表（PDF） - Hitachi -> Renesas Electronics

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HD74HC443

Quad Tridirectional Bus Transceiver

Hitachi -> Renesas Electronics 

HD74HC442/HD74HC443HD74HC444

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

— — 200 —

— — 40 —

— — 34 —

Max Unit

250 ns

50

43

Output enable

t ZH

time

t ZL

2.0

— — 150 — 190 ns

4.5

— — 30 — 38

6.0

— — 26 — 33

Output disable

t HZ

time

t LZ

2.0

— — 150 — 190 ns

4.5

— — 30 — 38

6.0

— — 26 — 33

Output rise/fall

t TLH

time

t THL

2.0

— — 60 — 75 ns

4.5

— — 12 — 15

6.0

— — 10 — 13

Input capacitance Cin

—

— 5 10 — 10 pF

Test Conditions

8

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