HD74HC244P 查看數據表（PDF） - Hitachi -> Renesas Electronics

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比赛名单

HD74HC244P

Octal Buffers/Line Drivers/Line Receivers(with noninverted 3-state outputs)

Hitachi -> Renesas Electronics 

HD74HC244

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

Ta = 25°C

Ta = –40 to

+85°C

Item

Symbol

Propagation delay tPHL

time

VCC (V)

2.0

4.5

Min Typ Max Min

— — 90 —

— 12 18 —

Max Unit

115 ns

23

6.0

— — 15 — 20

t PLH

2.0

— — 90 — 115 ns

4.5

— 10 18 — 23

6.0

— — 15 — 20

Output enable

t ZL

time

2.0

— — 150 — 190 ns

4.5

— 11 30 — 38

6.0

— — 26 — 33

t ZH

2.0

— — 150 — 190 ns

4.5

— 12 30 — 38

6.0

— — 26 — 33

Output disable

t LZ

time

2.0

— — 150 — 190 ns

4.5

— 16 30 — 38

6.0

— — 26 — 33

t HZ

2.0

— — 150 — 190 ns

4.5

— 19 30 — 38

6.0

— — 26 — 33

Output rise/fall

t TLH

time

t THL

2.0

— — 60 — 75 ns

4.5

— 4 12 — 15

6.0

— — 10 — 13

Input capacitance Cin

—

— 5 10 — 10 pF

Test Conditions

5

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