SN74HC253 datasheet(6/8 Pages) TI

部件名	SN74HC253

功能描述	DUAL 4-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS

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制造商	TI [Texas Instruments]

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6 / 8 page

SN54HC253, SN74HC253

DUAL 4-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS

WITH 3-STATE OUTPUTS

SCLS133B – DECEMBER 1982 – REVISED MAY 1997

6

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

switching characteristics over recommended operating free-air temperature range, CL = 150 pF

(unless otherwise noted) (see Figure 1)

PARAMETER

FROM

TO

VCC

TA = 25°C

SN54HC253

SN74HC253

UNIT

PARAMETER

(INPUT)

(OUTPUT)

VCC

MIN

TYP

MAX

MIN

MAX

MIN

MAX

UNIT

2 V

76

235

355

295

A or B

Any Y

4.5 V

23

47

71

59

t d

6 V

20

41

60

51

ns

tpd

Dt

2 V

68

220

335

275

ns

Data

(Any C)

Y

4.5 V

20

44

67

55

(Any C)

6 V

17

38

57

51

2 V

44

185

280

230

ten

OE

Y

4.5 V

16

37

56

46

ns

6 V

14

32

48

40

2 V

45

210

315

265

tt

Y

4.5 V

17

42

63

53

ns

6 V

13

36

53

45

operating characteristics, TA = 25°C

PARAMETER

TEST CONDITIONS

TYP

UNIT

Cpd

Power dissipation capacitance per multiplexer

No load

45

pF

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