SN54LVC257A, SN74LVC257A

QUADRUPLE 2LINE TO 1LINE DATA SELECTORS/MULTIPLEXERS

WITH 3STATE OUTPUTS

SCAS294N − JANUARY 1993 − REVISED OCTOBER 2003

5

POST OFFICE BOX 655303

switching characteristics over recommended operating free-air temperature range (unless

otherwise noted) (see Figure 1)

SN74LVC257A

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCC = 1.8 V

± 0.15 V

VCC = 2.5 V

± 0.2 V

VCC = 2.7 V

VCC = 3.3 V

± 0.3 V

UNIT

(INPUT)

(OUTPUT)

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

tpd

A or B

Y

1

13.5

1

7.4

1

5.4

1

4.6

ns

tpd

A/B

Y

1

15.6

1

9.5

1

7.5

1

6.4

ns

ten

OE

Y

1

14.6

1

8.7

1

6.7

1

5.6

ns

tdis

OE

Y

1

15.4

1

6.7

1

4.7

1

4.3

ns

tsk(o)

1

ns

PARAMETER

TEST

VCC = 1.8 V VCC = 2.5 V VCC = 3.3 V

UNIT

PARAMETER

TEST

CONDITIONS

TYP

TYP

TYP

UNIT

Cpd

Power dissipation capacitance

f = 10 MHz

13.5

14.5

15.5

pF