HD74HC646 查看數據表（PDF） - Hitachi -> Renesas Electronics

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HD74HC646

Octal Bus Transceivers/Registers with Multiplexed 3-state outputs

Hitachi -> Renesas Electronics 

HD74HC646/HD74HC648

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

Ta = 25°C

Ta = –40 to

+85°C

Item

Pulse width

Symbol

tw

VCC (V)

2.0

4.5

Min Typ Max Min

80 — — 100

16 5 — 20

Max Unit

— ns

—

6.0

14 — — 17 —

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

8

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