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

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HD74LV4040A

12-stage Binary Counter

Hitachi -> Renesas Electronics 

HD74LV4040A

Switching Characteristics

• VCC = 2.5 ± 0.2 V

Ta = 25°C

Item

Symbol Min

Maximum

fmax

50

clock

30

frequency

Propagation tPLH/tPHL —

delay time

—

tPHL

—

—

Propagation ∆tpd

—

delay time

skew

Setup time tSU

7.0

Typ

90

60

10.0

12.7

9.9

11.8

3.0

—

Pulse width tw

7.0 —

7.0 —

Max

—

—

16.0

19.6

15.4

18.0

5.5

—

—

—

Ta = –40 to 85°C

Min

Max

40

—

25

—

Unit

MHz

1.0

18.3

ns

1.0

22.2

1.0

17.5

1.0

20.4

—

6.3

ns

7.0

—

ns

7.0

—

ns

7.0

—

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

8

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