74ACT11139 [TI]

DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER; 双2线， 4线译码器/解复用器


型号：	74ACT11139
厂家：	TEXAS INSTRUMENTS
描述：	DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER 双2线， 4线译码器/解复用器解复用器
文件：	总6页 (文件大小：95K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

74ACT11139

DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER

SCAS175A – SEPTEMBER 1991 – REVISED APRIL 1996

D, N, OR PW PACKAGE

(TOP VIEW)

Inputs Are TTL-Voltage Compatible

Designed Specifically for High-Speed

Memory Decoders and Data Transmission

Systems

1Y0

1Y1

1Y2

1Y3

GND

2Y0

2Y1

2Y2

2Y3

Incorporates Two Enable Inputs to Simplify

Cascading and/or Data Reception

Fully Synchronous Operation for Counting

11 2G

10 2A

Center-Pin V

Minimize High-Speed Switching Noise

and GND Configurations

EPIC (Enhanced-Performance Implanted

CMOS) 1-µm Process

500-mA Typical Latch-Up Immunity at

125°C

Package Options Include Plastic

Small-Outline (D) and Thin Shrink

Small-Outline (PW) Packages, and

Standard Plastic 300-mil DIPs (N)

description

The 74ACT11139 is designed for use in high-performance memory-decoding or data-routing applications that

require very short propagation delay times. In high-performance memory systems, this decoder is used to

minimize the effects of system decoding.

The 74ACT11139 is composed of two individual 2-line to 4-line decoders in a single package. The active-low

enables (1G or 2G) can be used as data lines in demultiplexing applications. This decoder/demultiplexer

features fully buffered inputs, each of which represents only one normalized load to its driving circuit.

The 74ACT11139 is characterized for operation from –40°C to 85°C.

FUNCTION TABLE

INPUTS

OUTPUTS

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

EPIC is a trademark of Texas Instruments Incorporated.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

74ACT11139

DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER

SCAS175A – SEPTEMBER 1991 – REVISED APRIL 1996

†

logic symbol

DMUX

1Y0

1Y1

1Y2

1Y3

2Y0

2Y1

2Y2

2Y3

†

This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.

logic diagram (positive logic)

1Y0

1Y1

1Y2

1Y3

2Y0

2Y1

2Y2

2Y3

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

74ACT11139

DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER

SCAS175A – SEPTEMBER 1991 – REVISED APRIL 1996

†

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

Supply voltage range, V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V

Input voltage range, V (see Note 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to V

+ 0.5 V

Output voltage range, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to V

Input clamp current, I (V < 0 or V > V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA

Output clamp current, I

(V < 0 or V > V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA

Continuous output current, I (V = 0 to V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA

Continuous current through V

Maximum power dissipation at T = 55°C (in still air) (see Note 2): D package . . . . . . . . . . . . . . . . . . . . 1.3 W

or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±200 mA

N package . . . . . . . . . . . . . . . . . . . . 1.1 W

PW package . . . . . . . . . . . . . . . . . . . 0.5 W

Storage temperature range, T

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C

stg

†

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.

2. The maximum package power dissipation is calculated using a junction temperature of 150 C and a board trace length of 750 mils,

except for the N package, which has a trace length of zero.

recommended operating conditions (see Note 3)

MIN NOM

MAX

UNIT

Supply voltage

4.5

5.5

High-level input voltage

Low-level input voltage

Input voltage

0.8

Output voltage

High-level output current

Low-level output current

Input transition rise or fall rate

Operating free-air temperature

–24

ns/V

°C

∆t/∆v

–40

NOTE 3: Unused or floating inputs must be held high or low.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

74ACT11139

DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER

SCAS175A – SEPTEMBER 1991 – REVISED APRIL 1996

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

otherwise noted)

= 25°C

PARAMETER

TEST CONDITIONS

MIN

MAX

UNIT

MIN

4.4

TYP

MAX

4.5 V

5.5 V

4.5 V

5.5 V

4.5 V

5.5 V

4.5 V

5.5 V

5 V

4.4

5.4

= –50 A

5.4

3.94

4.94

3.8

= –24 mA

= –75 mA

4.8

†

3.85

0.1

0.44

1.65

±1

= 50

0.36

= 24 mA

= 75 mA

†

V = V

or GND

or GND,

±0.1

V = V

I = 0

‡

∆I

One input at 3.4 V,

V = V or GND

Other inputs at V

or GND

0.9

3.5

†

‡

Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms.

This is the increase in supply current for each input that is at one of the specified TTL voltage levels rather than 0 V or V

switching characteristics over recommended operating free-air temperature range,

= 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)

= 25°C

TYP

5.7

FROM

(INPUT)

(OUTPUT)

PARAMETER

MIN

MAX

UNIT

MIN

1.7

2.1

2.7

1.8

MAX

7.8

1.7

2.1

2.7

1.8

8.5

7.9

7.5

PLH

PHL

PLH

PHL

A or B

5.5

7.4

5.3

7.2

4.3

6.7

operating characteristics, V

= 5 V, T = 25°C

PARAMETER

Power dissipation capacitance

TEST CONDITIONS

= 50 pF, f = 1 MHz

TYP

UNIT

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

74ACT11139

DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER

SCAS175A – SEPTEMBER 1991 – REVISED APRIL 1996

PARAMETER MEASUREMENT INFORMATION

3 V

0 V

Input

(see Note B)

1.5 V

From Output

Under Test

PHL

PLH

= 50 pF

500 Ω

(see Note A)

50% V

Output

VOLTAGE WAVEFORMS

LOAD CIRCUIT

NOTES: A.

C includes probe and jig capacitance.

B. Input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, Z = 50 Ω, t = 3 ns, t = 3 ns.

C. The outputs are measured one at a time with one input transition per measurement.

Figure 1. Load Circuit and Voltage Waveforms

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

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Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue

any product or service without notice, and advise customers to obtain the latest version of relevant information

to verify, before placing orders, that information being relied on is current and complete. All products are sold

subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those

pertaining to warranty, patent infringement, and limitation of liability.

TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in

accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent

TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily

performed, except those mandated by government requirements.

CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF

DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL

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