HD74LV595A 查看數據表（PDF） - Hitachi -> Renesas Electronics

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HD74LV595A

8-bit Shift Registers with 3-state Outputs

Hitachi -> Renesas Electronics 

HD74LV595A

Switching Characteristics (cont)

• VCC = 5.0 ± 0.5 V

Ta = 25°C

Item

Symbol Min Typ

Maximum

fmax

clock

frequency

135 185

95 155

Propagation tPLH/tPHL — 6.2

delay time

— 7.7

— 5.4

— 6.9

tPHL

— 5.9

— 7.4

Enable time tZH

tZL

Disable time tHZ

tLZ

Setup time tSU

— 4.8

— 8.3

— 4.8

— 7.6

3.0 —

5.0 —

5.0 —

2.5 —

Hold time

th

Pulse width tw

2.0 —

0.0 —

0.0 —

5.0 —

5.0 —

5.0 —

Ta = –40 to 85°C

Max Min Max

Test

FROM

Unit Conditions (Input)

—

115

—

—

85

—

MHz

CL = 15 pF

CL = 50 pF

TO

(Output)

8.2 1.0

10.2 1.0

7.4 1.0

9.4 1.0

8.0 1.0

10.0 1.0

8.6 1.0

10.6 1.0

8.6 1.0

11.0 1.0

—

3.0

—

5.0

—

5.0

—

2.5

—

2.0

—

0.0

—

0.0

—

5.0

—

5.0

—

5.0

9.4

11.4

8.5

10.5

9.1

11.1

10.0

12.0

10.0

11.0

—

—

—

—

—

—

—

—

—

—

ns

CL = 15 pF SRCLK

QH'

CL = 50 pF

CL = 15 pF RCLK

QA – QH

CL = 50 pF

CL = 15 pF SRCLK

QH'

CL = 50 pF

ns

CL = 15 pF G

QA – QH

CL = 50 pF

ns

CL = 15 pF

CL = 50 pF

ns

SER before SRCLK ↑

SRCLK ↑ before RCLK ↑

SRCLR low before RCLK ↑

SRCLR high (inactive)

before SRCLK ↑

ns

SER after SRCLK ↑

SRCLK ↑ after RCLK ↑

SRCLR low after RCLK ↑

ns

RCLK high or low

SRCLK high or low

SRCLR low

11

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