SN74F543

更新时间： 2024-09-09 22:53:35

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	99K
描述
OCTAL REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS

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SN74F543 数据手册

SN74F543

OCTAL REGISTERED TRANSCEIVER

WITH 3-STATE OUTPUTS

SDFS025B – D2942, MARCH 1987 – REVISED OCTOBER 1993

DB, DW, OR NT PACKAGE

(TOP VIEW)

• 3-State True Outputs

• Back-to-Back Registers for Storage

• Package Options Include Plastic

Small-Outline and Shrink Small-Outline

Packages and Standard Plastic 300-mil

DIPs

LEBA

OEBA

23 CEBA

22 B1

21 B2

20 B3

19 B4

18 B5

17 B6

16 B7

description

The SN74F543 octal transceiver contains two

sets of D-type latches for temporary storage of

data flowing in either direction. Separate

latch-enable (LEAB or LEBA) and output enable

(OEAB or OEBA) inputs are provided for each

direction of data flow. The A outputs are

characterized to sink 24 mA while the B outputs

are characterized to sink 64 mA.

14 LEAB

13 OEAB

CEAB

GND

The A-to-B enable (CEAB) input must be low in order to enter data from A or to output data from B. Having CEAB

low and LEAB low makes the A-to-B latches transparent; a subsequent low-to-high transition of LEAB puts the

A latches in the storage mode. With CEAB and OEAB both low, the 3-state B outputs are active and reflect the

data present at the output of the A latches. Data flow from B to A is similar, but requires using the CEBA, LEBA,

and OEBA inputs.

The SN74F543 is available in TI’s shrink small-outline package (DB), which provides the same I/O pin count

and functionality of standard small-outline packages in less than half the printed-circuit-board area.

The SN74F543 is characterized for operation from 0°C to 70°C.

†

FUNCTION TABLE

INPUTS

OUTPUT

CEAB

LEAB

OEAB

‡

†

‡

A-to-B data flow is shown; B-to-A flow control is the

same except that it uses CEBA, LEBA, and OEBA.

Output level before the indicated steady-state input

conditions were established.

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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与SN74F543相关器件

型号	品牌	获取价格	描述	数据表
SN74F543DB	TI	获取价格	OCTAL REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS
SN74F543DBR	TI	获取价格	具有三态输出的八路寄存收发器 \| DB \| 24 \| 0 to 70
SN74F543DW	TI	获取价格	OCTAL REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS
SN74F543DW-00	TI	获取价格	F/FAST SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24
SN74F543DWG4	TI	获取价格	具有三态输出的八路寄存收发器 \| DW \| 24 \| 0 to 70
SN74F543DWR	TI	获取价格	Octal Registered Transceiver With 3-State Outputs 24-SOIC 0 to 70
SN74F543DWRE4	ROCHESTER	获取价格	Registered Bus Transceiver, F/FAST Series, 1-Func, 8-Bit, True Output, TTL, PDSO24, PLASTI
SN74F543DWRG4	ROCHESTER	获取价格	Registered Bus Transceiver, F/FAST Series, 1-Func, 8-Bit, True Output, TTL, PDSO24, PLASTI
SN74F543N3	ROCHESTER	获取价格	Registered Bus Transceiver
SN74F543NSR	TI	获取价格	IC F/FAST SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24, GREEN, PLASTIC, SOP-2

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