Datasheet > SN54F251B_08

SN54F251B_08

更新时间： 2024-09-17 02:58:19

品牌	Logo	应用领域
德州仪器 - TI		输出元件
页数	文件大小	规格书
7页	101K
描述
1-OF-8 DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS

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SN54F251B_08 数据手册

SN54F251B, SN74F251B

1-OF-8 DATA SELECTORS/MULTIPLEXERS

WITH 3-STATE OUTPUTS

SDFS066A – MARCH 1987 – REVISED OCTOBER 1993

SN54F251B . . . J PACKAGE

SN74F251B . . . D OR N PACKAGE

(TOP VIEW)

• 3-State Versions of SN54F151B and

SN74F151B

• 3-State Outputs Interface Directly With

System Bus

GND

• Performs Parallel-to-Serial Conversion

• Complementary Outputs Provide True and

Inverted Data

• Package Options Include Plastic

Small-Outline Packages, Ceramic Chip

Carriers, and Standard Plastic and Ceramic

300-mil DIPs

description

SN54F251B . . . FK PACKAGE

(TOP VIEW)

These data selectors/multiplexers contain full

binary decoding to select one of eight data

sources

and

feature

strobe-controlled

complementary outputs. The 3-state outputs can

interface with and drive data lines of bus-

organized systems. When the strobe (G) input is

high, both outputs are in a high-impedance state

in which both the upper and lower transistors of

each totem-pole output are off, and the output

neither drives nor loads the bus significantly.

20 19

9 10 11 12 13

The SN54F251B is characterized for operation

over the full military temperature range of –55°C

to 125°C. The SN74F251B is characterized for

operation from 0°C to 70°C.

NC – No internal connection

FUNCTION TABLE

INPUTS

SELECT

OUTPUTS

STROBE

D0, D1, . . . D7 = the level of the respective D input.

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.

2–1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7

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