HD74HC240FPEL(2010) 查看數據表（PDF） - Renesas Electronics

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HD74HC240FPEL
(Rev.:2010)

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

Renesas Electronics 

HD74HC240

Switching Characteristics

Item

Symbol VCC (V)

Propagation delay tPHL

2.0

time

4.5

6.0

tPLH

2.0

4.5

6.0

Output enable time tZL

2.0

4.5

6.0

tZH

2.0

4.5

6.0

Output disable

time

tLZ

2.0

4.5

6.0

tHZ

2.0

4.5

6.0

Output rise/fall

time

tTLH

2.0

tTHL

4.5

6.0

Input capacitance Cin

—

Ta = 25°C

Min Typ Max

— — 90

— 10 18

— — 15

— — 90

— 10 18

— — 15

— — 150

— 11 30

— — 26

— — 150

— 12 30

— — 26

— — 150

— 16 30

— — 26

— — 150

— 19 30

— — 26

— — 60

— 4 12

— — 10

— 5 10

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

Ta = –40 to +85°C

Unit

Min

Max

Test Conditions

—

115 ns

—

23

—

20

—

115 ns

—

23

—

20

—

190 ns

—

38

—

33

—

190 ns

—

38

—

33

—

190 ns

—

38

—

33

—

190 ns

—

38

—

33

—

75

ns

—

15

—

13

—

10

pF

Rev.2.00 Jan 31, 2006 page 4 of 7

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