HD74LV4040A Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics

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HD74LV4040A

12-stage Binary Counter

Hitachi -> Renesas Electronics 

HD74LV4040A

Switching Characteristics (cont)

• VCC = 3.3 ± 0.3 V

Ta = 25°C

Item

Symbol Min

Maximum

fmax

75

clock

55

frequency

Propagation tPLH/tPHL —

delay time

—

tPHL

—

—

Propagation ∆tpd

—

delay time

skew

Setup time tSU

5.0

Typ

140

80

7.5

10.0

8.3

10.8

2.4

—

Pulse width tw

5.0 —

5.0 —

Max

—

—

11.9

15.4

12.8

16.3

4.4

—

—

—

Ta = –40 to 85°C

Min

Max

70

—

50

—

Unit

MHz

1.0

14.0

ns

1.0

17.5

1.0

15.0

1.0

18.5

—

5.0

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

9

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