74ALS139N datasheet(2/8 Pages) PHILIPS

部件名	74ALS139N

功能描述	Dual 1-of-4 decoder/demultiplexer

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制造商	PHILIPS [NXP Semiconductors]

网页	http://www.nxp.com

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Philips Semiconductors

Product specification

74ALS139

Dual 1-of-4 decoder/demultiplexer

2

1991 Feb 08

853–1426 01670

FEATURES

• Demultiplexing capability

• Two independent 1-of-4 decoders

• Multi-function capability

DESCRIPTION

The 74ALS139 is a dual 1-of-4 decoder/demultiplexer. This device

has two independent decoders, each accepting two binary weighted

inputs (A0n, A1n) and providing four mutually exclusive active-Low

outputs (Q0n–Q3n). Each decoder has an active-Low enable (E).

When E is High, every output is forced High. The enable can be

used as the data input for a 1-of-4 demultiplexer application.

TYPE

TYPICAL

PROPAGATION DELAY

TYPICAL

SUPPLY CURRENT

(TOTAL)

74ALS139

6.0ns

4mA

ORDERING INFORMATION

ORDER CODE

DESCRIPTION

COMMERCIAL RANGE

VCC = 5V ±10%,

Tamb = 0°C to +70°C

DRAWING

NUMBER

16-pin plastic DIP

74ALS139N

SOT38-4

16-pin plastic SO

74ALS139D

SOT109-1

PIN CONFIGURATION

16

15

14

13

12

11

10

7

6

5

4

3

2

1

Q3a

VCC

Q0b

Q1b

Q2b

A1b

Eb

A0b

Ea

A0a

Q2a

A1a

Q0a

Q1a

9

8

GND

Q3b

SF00129

INPUT AND OUTPUT LOADING AND FAN-OUT TABLE

PINS

DESCRIPTION

74ALS (U.L.)

HIGH/LOW

LOAD VALUE

HIGH/LOW

A0n, A1n

Address inputs

1.0/1.0

20

µA/0.1mA

Ea, Eb

Enable inputs (active-Low)

1.0/1.0

20

µA/0.1mA

Q0n, Q1n

Data outputs

20/80

0.4mA/8mA

NOTE:

One (1.0) ALS unit load is defined as: 20

µA in the High state and 0.1mA in the Low state.

LOGIC SYMBOL

A0a

A1a

Ea

12

3

VCC = Pin 16

GND = Pin 8

SF00130

Q0a

Q1a Q2a

45

6

Q3a

7

A0b

A1b

Eb

15

14

13

Q0b

Q1b Q2b

12

11

10

Q3b

9

DECODER a

DECODER b

IEC/IEEE SYMBOL

SF00131

DEMUX

2

3

1

14

13

15

4

5

6

7

12

11

10

9

0

1

0

1

2

G

0

3

类似零件编号 - 74ALS139N

制造商	部件名	数据表	功能描述
Fairchild Semiconductor	74ALS133	43Kb / 4P	13-Input NAND Gate
NXP Semiconductors	74ALS138	76Kb / 8P	1-of-8 decoder/demultiplexer 1996 Jul 03
	74ALS138D	76Kb / 8P	1-of-8 decoder/demultiplexer 1996 Jul 03
	74ALS138N	76Kb / 8P	1-of-8 decoder/demultiplexer 1996 Jul 03

More results

类似说明 - 74ALS139N

制造商	部件名	数据表	功能描述
NXP Semiconductors	74F139	75Kb / 8P	Dual 1-of-4 decoder/demultiplexer 1990 Feb 23
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ON Semiconductor	74AC139	351Kb / 12P	Dual 1-of-4 Decoder / Demultiplexer January, 2017 ??Rev. 2
Fairchild Semiconductor	74AC139	98Kb / 9P	Dual 1-of-4 Decoder/Demultiplexer
Motorola, Inc	SN54LS155	210Kb / 6P	DUAL 1-OF-4 DECODER/ DEMULTIPLEXER
National Semiconductor ...	54F139DM	166Kb / 8P	Dual 1-of-4 Decoder/Demultiplexer