54AC257F datasheet(5/8 Pages) NSC

部件名	54AC257F

功能描述	Quad 2-Input Multiplexer with TRI-STATE Outputs

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制造商	NSC [National Semiconductor (TI)]

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DC Characteristics for ’ACT Family Devices (Continued)

54ACT

Symbol

Parameter

V

CC

T

A =

Units

Conditions

(V)

−55˚C to +125˚C

Guaranteed

Limits

I

CC

Maximum Quiescent

5.5

80.0

µA

V

IN = VCC

Supply Current

or GND

Note 6: All outputs loaded; thresholds on input associated with output under test.

Note 7: Maximum test duration 2.0 ms, one output loaded at a time.

Note 8: ICC for 54ACT @ 25˚C is identical to 74ACT @ 25˚C.

AC Electrical Characteristics

54AC

Symbol

Parameter

V

CC

T

A = −55˚C

Units

(V)

to +125˚C

(Note 9)

C

L = 50 pF

t

PLH

Propagation Delay

3.3

1.0

11.0

ns

I

n to Zn

5.0

1.0

8.0

t

PHL

Propagation Delay

3.3

1.0

11.0

ns

I

n to Zn

5.0

1.0

8.5

t

PLH

Propagation Delay

3.3

1.0

14.5

ns

StoZ

n

5.0

1.0

11.0

t

PHL

Propagation Delay

3.3

1.0

14.5

ns

StoZ

n

5.0

1.0

11.0

t

PZH

Output Enable Time

3.3

1.0

13.0

ns

5.0

1.0

10.0

t

PZL

Output Enable Time

3.3

1.0

11.0

ns

5.0

1.0

9.5

t

PHZ

Output Disable Time

3.3

1.0

13.0

ns

5.0

1.0

11.0

t

PLZ

Output Disable Time

3.3

1.0

10.5

ns

5.0

1.0

9.5

Note 9: Voltage Range 3.3 is 3.0V ±0.3V

Voltage Range 5.0 is 5.0V ±0.5V

AC Electrical Characteristics

54ACT

Symbol

Parameter

V

CC

T

A = −55˚C

Units

(V)

to +125˚C

(Note 10)

C

L = 50 pF

t

PLH

Propagation Delay

5.0

1.0

8.0

ns

I

n to Zn

t

PHL

Propagation Delay

5.0

1.0

9.5

ns

I

n to Zn

t

PLH

Propagation Delay

5.0

1.0

11.0

ns

StoZ

n

t

PHL

Propagation Delay

5.0

1.0

11.5

ns

StoZ

n

t

PZH

Output Enable Time

5.0

1.0

9.5

ns

5

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类似零件编号 - 54AC257F

制造商	部件名	数据表	功能描述
Texas Instruments	54AC257	128Kb / 8P	[Old version datasheet] Quad 2-Input Multiplexer with TRI-STATE Outputs

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