SN74ALS843

更新时间： 2024-11-28 23:06:15

品牌	Logo	应用领域
德州仪器 - TI		锁存器输出元件
页数	文件大小	规格书
6页	93K
描述
9-BIT BUS-INTERFACE D-TYPE LATCH WITH 3-STATE OUTPUTS

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SN74ALS843 数据手册

SN74ALS843

9-BIT BUS-INTERFACE D-TYPE LATCH

WITH 3-STATE OUTPUTS

SDAS232A – DECEMBER 1983 – REVISED JANUARY 1995

DW OR NT PACKAGE

(TOP VIEW)

• 3-State Buffer-Type Outputs Drive Bus

Lines Directly

• Bus-Structured Pinout

• Provides Extra Bus-Driving Latches

Necessary for Wider Address/Data Paths or

Buses With Parity

23 1Q

22 2Q

21 3Q

20 4Q

19 5Q

18 6Q

17 7Q

16 8Q

15 9Q

14 PRE

13 LE

• Buffered Control Inputs to Reduce

dc Loading Effects

• Power-Up High-Impedance State

• Package Options Include Plastic

Small-Outline (DW) Packages and Standard

Plastic (NT) 300-mil DIPs

9D 10

CLR 11

GND 12

description

This 9-bit bus-interface D-type latch features

3-state outputs designed specifically for driving

highly capacitive or relatively low-impedance loads. It is particularly suitable for implementing buffer registers,

I/O ports, bidirectional bus drivers, and working registers.

The nine latches are transparent D-type latches with noninverting data (D) inputs.

Abufferedoutput-enable(OE)inputplacesthenineoutputsineitheranormallogicstate(highorlowlogiclevels)

or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines

significantly. The high-impedance state and increased drive provide the capability to drive bus lines without

interface or pullup components.

OE does not affect the internal operation of the latches. Previously stored data can be retained or new data can

be entered while the outputs are off.

The SN74ALS843 is characterized for operation from 0°C to 70°C.

FUNCTION TABLE

INPUTS

OUTPUT

PRE

CLR

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

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与SN74ALS843相关器件

型号	品牌	获取价格	描述	数据表
SN74ALS843-1DW	ROCHESTER	获取价格	ALS SERIES, 9-BIT DRIVER, TRUE OUTPUT, PDSO24
SN74ALS843-1FN3	ROCHESTER	获取价格	暂无描述
SN74ALS843-1NT	ROCHESTER	获取价格	ALS SERIES, 9-BIT DRIVER, TRUE OUTPUT, PDIP24
SN74ALS843-1NT	TI	获取价格	ALS SERIES, 9-BIT DRIVER, TRUE OUTPUT, PDIP24
SN74ALS843-1NT3	ROCHESTER	获取价格	ALS SERIES, 9-BIT DRIVER, TRUE OUTPUT, PDIP24
SN74ALS843DW	TI	获取价格	9-BIT BUS-INTERFACE D-TYPE LATCH WITH 3-STATE OUTPUTS
SN74ALS843DWE4	TI	获取价格	9-Bit Bus-Interface D-Type Latches With 3-State Outputs 24-SOIC 0 to 70
SN74ALS843DWP3	TI	获取价格	IC,LATCH,SINGLE,9-BIT,ALS-TTL,SOP,24PIN,PLASTIC
SN74ALS843DWR	TI	获取价格	具有三态输出的 9 位总线接口 D 类锁存器 \| DW \| 24 \| 0 to 70
SN74ALS843DWRE4	TI	获取价格	9-Bit Bus-Interface D-Type Latches With 3-State Outputs 24-SOIC 0 to 70

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