HD74HC259RPEL 查看數據表（PDF） - Renesas Electronics

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HD74HC259RPEL

8-bit Addressable Latch

Renesas Electronics 

HD74HC259

Switching Characteristics

Item

Propagation delay

time

Pulse width

Setup time

Hold time

Output rise/fall

time

Input capacitance

Symbol VCC (V)

tPHL

2.0

tPLH

4.5

6.0

2.0

4.5

6.0

2.0

4.5

6.0

tPHL

2.0

4.5

6.0

tw

2.0

4.5

6.0

tsu

2.0

4.5

6.0

th

2.0

4.5

6.0

tTLH

2.0

tTHL

4.5

6.0

Cin

—

Ta = 25°C

Min Typ Max

— — 185

— 16 37

— — 31

— — 215

— 20 43

— — 37

— — 200

— 17 40

— — 34

— — 155

— 15 31

— — 26

80 — —

16 6 —

14 — —

100 — —

20 5 —

17 — —

5 ——

5 –1 —

5 ——

— — 75

— 5 15

— — 13

— 5 10

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

Ta = –40 to +85°C Unit

Test Conditions

Min

Max

—

230 ns Data to output

—

46

—

39

—

270 ns Latch select to output

—

54

—

46

—

250 ns Enable to output

—

50

—

43

—

195 ns Clear to output

—

39

—

33

100

—

ns Clear, Enable

20

—

17

—

125

—

ns Latch select or data to enable

25

—

21

—

5

—

ns Latch select or data to enable

5

—

5

—

—

95

ns

—

19

—

16

—

10 pF

Test Circuit

VCC

VCC

Input

Pulse Generator

Zout = 50 Ω

G

Clear

Q0 to Q7

A

B

C

D

Output

CL =

50 pF

Note : 1. CL includes probe and jig capacitance.

Rev.2.00 Jan 31, 2006 page 4 of 9

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