Datasheet > SN54F621_16

SN54F621_16

更新时间： 2024-09-30 02:58:47

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
5页	76K
描述
OCTAL BUS TRANSCEIVERS WITH OPEN-COLLECTOR OUTPUTS

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数据手册

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SN54F621_16 数据手册

SN54F621, SN74F621

OCTAL BUS TRANSCEIVERS

WITH OPEN-COLLECTOR OUTPUTS

SDFS004B – D2932, MARCH 1987 – REVISED OCTOBER 1993

SN54F621 . . . J PACKAGE

SN74F621 . . . DW OR N PACKAGE

(TOP VIEW)

• Local Bus-Latch Capability

• Noninverting Logic

• Package Options Include Plastic

Small-Outline Packages, Ceramic Chip

Carriers, and Standard Plastic and Ceramic

300-mil DIPs

OEAB

OEBA

description

These octal bus transceivers are designed for

asynchronous communication between data

buses. Thecontrolfunctionimplementationallows

for maximum flexibility in timing.

GND 10

11 B8

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 (OEAB and OEBA) inputs.

SN54F621 . . . FK PACKAGE

(TOP VIEW)

The output-enable inputs can be used to disable

the device so that the buses are effectively

isolated. The dual-enable configuration gives the

transceivers the capability of storing data by

simultaneously enabling OEAB and OEBA. Each

output reinforces its input in this configuration.

When both OEAB and OEBA are enabled and all

other data sources to the two sets of bus lines are

at high impedance, both sets of bus lines (16 in all)

will remain at their last states.

20 19

17 B2

9 10 11 12 13

The SN54F621 is characterized for operation over

the full military temperature range of –55°C to

125°C. The SN74F621 is characterized for

operation from 0°C to 70°C.

FUNCTION TABLE

INPUTS

OPERATION

OEBA

OEAB

B data to A bus

B data to A bus,

A data to B bus

Isolation

A data to B bus

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SN54F621_16相关器件

型号	品牌	获取价格	描述	数据表
SN54F621FK	TI	获取价格	OCTAL BUS TRANSCEIVERS WITH OPEN-COLLECTOR OUTPUTS
SN54F621FKR	TI	获取价格	F/FAST SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CQCC20, CERAMIC, LCC-20
SN54F621J	TI	获取价格	OCTAL BUS TRANSCEIVERS WITH OPEN-COLLECTOR OUTPUTS
SN54F621W	TI	获取价格	F/FAST SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CDFP20, CERAMIC, FP-20
SN54F622FK	TI	获取价格	F/FAST SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, CQCC20
SN54F622FK-00	TI	获取价格	F/FAST SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, CQCC20
SN54F623	TI	获取价格	OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SN54F623_16	TI	获取价格	OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SN54F623FK	TI	获取价格	OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SN54F623FKR	TI	获取价格	暂无描述