SN74F242

更新时间： 2024-11-17 22:53:35

品牌	Logo	应用领域
德州仪器 - TI		总线收发器输出元件
页数	文件大小	规格书
5页	78K
描述
QUADRUPLE BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

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SN74F242 数据手册

SN54F242, SN74F242

QUADRUPLE BUS TRANSCEIVERS

WITH 3-STATE OUTPUTS

SDFS062A – D2932, MARCH 1987 – REVISED OCTOBER 1993

SN54F242 . . . J PACKAGE

SN74F242 . . . D OR N PACKAGE

(TOP VIEW)

• Asynchronous Communication Between

Data Buses

• Local Bus-Latch Capability

• Inverting Logic

• Package Options Include Plastic

Small-Outline Packages, Ceramic Chip

Carriers, and Standard Plastic and Ceramic

300-mil DIPs

OEAB

OEBA

description

GND

These quadruple bus transceivers are designed

for asynchronous communications between data

buses. Thecontrolfunctionimplementationallows

for maximum flexibility in timing. These devices

allow data transmission from the A bus to the

B bus or from the B bus to the A bus depending

upon the logic levels at the output-enable (OEBA

and OEAB) inputs. The output-enable inputs can

be used to disable the device so that the buses are

effectively isolated.

SN54F242 . . . FK PACKAGE

(TOP VIEW)

20 19

The dual-enable configuration gives the

quadruple bus transceivers the capability to store

data by simultaneous enabling of OEBA and

OEAB. Each output reinforces its input in this

transceiverconfiguration. Thus, whenbothcontrol

inputs are enabled and all other data sources to

the two sets of bus lines are at high impedance,

both sets of bus lines (eight in all) remain at their

states. The 4-bit codes appearing on the two sets

of buses will be complementary for the ′F242.

9 10 11 12 13

NC – No internal connection

The SN54F242 is characterized for operation over the full military temperature range of –55°C to 125°C. The

SN74F242 is characterized for operation from 0°C to 70°C.

FUNCTION TABLE

INPUTS

FUNCTION

OEAB

OEBA

A to B

B to A

Isolation

Latch A and B

(A = B)

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

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与SN74F242相关器件

型号	品牌	获取价格	描述	数据表
SN74F242D	TI	获取价格	Quad bus transceivers 14-SOIC 0 to 70
SN74F242D-00	TI	获取价格	F/FAST SERIES, 4-BIT TRANSCEIVER, INVERTED OUTPUT, PDSO14
SN74F242D-00R	TI	获取价格	F/FAST SERIES, 4-BIT TRANSCEIVER, INVERTED OUTPUT, PDSO14
SN74F242D3	TI	获取价格	SN74F242D3
SN74F242DR	TI	获取价格	Quad bus transceivers 14-SOIC 0 to 70
SN74F242N	TI	获取价格	暂无描述
SN74F242N-10	TI	获取价格	F/FAST SERIES, 4-BIT TRANSCEIVER, INVERTED OUTPUT, PDIP14
SN74F242N3	TI	获取价格	SN74F242N3
SN74F243	TI	获取价格	QUADRUPLE BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SN74F243D	TI	获取价格	QUADRUPLE BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

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