SN54AS651

更新时间： 2024-11-14 22:59:15

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
22页	332K
描述
OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS

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数据手册

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SN54AS651 数据手册

SN54ALS652, SN54ALS653, SN54AS651, SN54AS652

SN74ALS651A, SN74ALS652A, SN74ALS653, SN74ALS654, SN74AS651, SN74AS652

OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS

SDAS066F – DECEMBER 1983 – REVISED OCTOBER 1996

SN54ALS’, SN54AS’ . . . JT PACKAGE

SN74ALS’, SN74AS’ . . . DW OR NT PACKAGE

Bus Transceivers/Registers

Independent Registers and Enables for A

(TOP VIEW)

and B Buses

CLKAB

SAB

OEAB

Multiplexed Real-Time and Stored Data

Choice of True or Inverting Data Paths

CLKBA

SBA

OEBA

Choice of 3-State or Open-Collector

Outputs to A Bus

Package Options Include Plastic

Small-Outline (DW) Packages, Ceramic

Chip Carriers (FK), and Standard Plastic

(NT) and Ceramic (JT) 300-mil DIPs

DEVICE

A OUTPUT

B OUTPUT

LOGIC

SN74ALS651A,

’AS651

GND 12

13 B8

3 State

Inverting

SN54ALS652,

SN74ALS652A,

’AS652

SN54ALS’, SN54AS’ . . . FK PACKAGE

3 State

True

(TOP VIEW)

’ALS653

Open Collector

3 State

Inverting

True

SN74ALS654

description

2 1 28 27 26

25 OEBA

These devices consist of bus-transceiver circuits,

D-type flip-flops, and control circuitry arranged for

multiplexed transmission of data directly from the

data bus or from the internal storage registers.

Output-enable (OEAB and OEBA) inputs are

provided to control the transceiver functions.

Select-control (SAB and SBA) inputs are provided

to select real-time or stored data transfer. The

circuitry used for select control eliminates the

typical decoding glitch that occurs in a multiplexer

during the transition between stored and real-time

data. A low input level selects real-time data, and

a high input level selects stored data. Figure 1

12 13 14 15 16 17 18

NC – No internal connection

illustrates the four fundamental bus-management functions that can be performed with the octal bus

transceivers and registers.

Data on the A or B data bus, or both, can be stored in the internal D-type flip-flops by low-to-high transitions at

the appropriate clock (CLKAB or CLKBA) terminals, regardless of the select- or output-control terminals. When

SAB and SBA are in the real-time transfer mode, it is possible to store data without using the internal D-type

flip-flops by simultaneously enabling OEAB and OEBA. In this configuration, each output reinforces its input.

When all other data sources to the two sets of bus lines are at high impedance, each set of bus lines remains

at its last state.

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.

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

12 3 4 5 6 7...22

中文翻译

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与SN54AS651相关器件

型号	品牌	获取价格	描述	数据表
SN54AS651FC-00	TI	获取价格	AS SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, CQCC28, CERAMIC, CC-28
SN54AS651FH	TI	获取价格	IC,BUS TRANSCEIVER,SINGLE,8-BIT,AS-TTL,LLCC,28PIN,CERAMIC
SN54AS651FK	TI	获取价格	OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
SN54AS651FKR	TI	获取价格	AS SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, CQCC28, CERAMIC, LCC-28
SN54AS651JT	TI	获取价格	OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
SN54AS651JT-00	TI	获取价格	AS SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, CDIP24
SN54AS652	TI	获取价格	OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
SN54AS652FC-00	TI	获取价格	AS SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CQCC28, CERAMIC, CC-28
SN54AS652FH	TI	获取价格	IC,BUS TRANSCEIVER,SINGLE,8-BIT,AS-TTL,LLCC,28PIN,CERAMIC
SN54AS652FK	TI	获取价格	OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS

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