HD74LV4040A 查看數據表（PDF） - Hitachi -> Renesas Electronics

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HD74LV4040A

12-stage Binary Counter

Hitachi -> Renesas Electronics 

HD74LV4040A

Switching Characteristics (cont)

• VCC = 5.0 ± 0.5 V

Ta = 25°C

Item

Symbol Min Typ

Maximum

fmax

clock

frequency

150 210

95

125

Propagation tPLH/tPHL —

4.8

delay time

—

6.3

tPHL

—

5.6

—

7.1

Propagation ∆tpd

delay time

skew

—

1.6

Setup time tSU

5.0 —

Pulse width tw

5.0 —

5.0 —

Max

—

—

7.3

9.3

8.6

10.6

3.1

—

—

—

Ta = –40 to 85°C

Min

Max

125

—

80

—

Unit

MHz

1.0

8.5

ns

1.0

10.5

1.0

10.0

1.0

12.0

—

3.5

ns

5.0

—

ns

5.0

—

ns

5.0

—

Test Conditions

CL = 15 pF

CL = 50 pF

CL = 15 pF

CL = 50 pF

CL = 15 pF

CL = 50 pF

CL = 50 pF

FROM TO

(Input) (Output)

CLK

Q1

CLR

Qn

Qn + 1

CLR inactive

before CLK ↓

CLK high or low

CLR high

10

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