DM54LS139 datasheet(3/8 Pages) NSC

部件名	DM54LS139

功能描述	Decoders/Demultiplexers

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制造商	NSC [National Semiconductor (TI)]

网页	http://www.national.com

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’LS138 Switching Characteristics

at VCC e 5V and TA e 25 C (See Section 1 for Test Waveforms and Output Load)

From (Input)

Levels

RL e 2kX

Symbol

Parameter

To (Output)

of Delay

CL e 15 pF

CL e 50 pF

Units

Min

Max

Min

Max

tPLH

Propagation Delay Time

Select to

218

27

ns

Low to High Level Output

Output

tPHL

Propagation Delay Time

Select to

227

40

ns

High to Low Level Output

Output

tPLH

Propagation Delay Time

Select to

318

27

ns

Low to High Level Output

Output

tPHL

Propagation Delay Time

Select to

327

40

ns

High to Low Level Output

Output

tPLH

Propagation Delay Time

Enable to

218

27

ns

Low to High Level Output

Output

tPHL

Propagation Delay Time

Enable to

224

40

ns

High to Low Level Output

Output

tPLH

Propagation Delay Time

Enable to

318

27

ns

Low to High Level Output

Output

tPHL

Propagation Delay Time

Enable to

328

40

ns

High to Low Level Output

Output

Recommended Operating Conditions

Symbol

Parameter

DM54LS139

DM74LS139

Units

Min

Nom

Max

Min

Nom

Max

VCC

Supply Voltage

45

5

55

475

5

525

V

VIH

High Level Input Voltage

2

V

VIL

Low Level Input Voltage

07

08

V

IOH

High Level Output Current

b

04

b

04

mA

IOL

Low Level Output Current

4

8

mA

TA

Free Air Operating Temperature

b

55

125

0

70

C

3

类似零件编号 - DM54LS139

制造商	部件名	数据表	功能描述
National Semiconductor ...	DM54LS136	52Kb / 2P	QUAD 2-INPUT EXCLUSIVE-OR GATE WITH OPEN-COLLECTOR OUTPUTS
	DM54LS136J	52Kb / 2P	QUAD 2-INPUT EXCLUSIVE-OR GATE WITH OPEN-COLLECTOR OUTPUTS
	DM54LS136W	52Kb / 2P	QUAD 2-INPUT EXCLUSIVE-OR GATE WITH OPEN-COLLECTOR OUTPUTS

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