Datasheet > SN74AS651-1NT

SN74AS651-1NT

更新时间： 2024-01-31 01:44:22

品牌	Logo	应用领域
德州仪器 - TI		光电二极管输出元件逻辑集成电路
页数	文件大小	规格书
34页	910K
描述
AS SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDIP24, 0.300 INCH, PLASTIC, DIP-24

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SN74AS651-1NT 技术参数

生命周期：	Obsolete	零件包装代码：	DIP
包装说明：	DIP,	针数：	24
Reach Compliance Code：	unknown	风险等级：	5.54
系列：	AS	JESD-30 代码：	R-PDIP-T24
长度：	31.64 mm	逻辑集成电路类型：	REGISTERED BUS TRANSCEIVER
位数：	8	功能数量：	1
端口数量：	2	端子数量：	24
最高工作温度：	70 °C	最低工作温度：
输出特性：	3-STATE	输出极性：	INVERTED
封装主体材料：	PLASTIC/EPOXY	封装代码：	DIP
封装形状：	RECTANGULAR	封装形式：	IN-LINE
传播延迟（tpd）：	9 ns	认证状态：	Not Qualified
座面最大高度：	5.08 mm	最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	4.5 V	标称供电电压 (Vsup)：	5 V
表面贴装：	NO	技术：	TTL
温度等级：	COMMERCIAL	端子形式：	THROUGH-HOLE
端子节距：	2.54 mm	端子位置：	DUAL
宽度：	7.62 mm	Base Number Matches：	1

SN74AS651-1NT 数据手册

SN54ALS652, SN54ALS653, SN54AS651, SN54AS652

SN74ALS651A, SN74ALS652A, SN74ALS653, SN74ALS654, SN74AS651, SN74AS652

OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS

SDAS066G – DECEMBER 1983 – REVISED DECEMBER 2000

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

DEVICE

A OUTPUT

B OUTPUT

LOGIC

SN74ALS651A,

’AS651

3-State

Inverting

SN54ALS652,

SN74ALS652A,

’AS652

3-State

True

GND 12

13 B8

’ALS653

Open Collector

3-State

Inverting

True

SN74ALS654

SN54ALS’, SN54AS’ . . . FK PACKAGE

(TOP VIEW)

description

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

illustrates the four fundamental bus-management

functions that can be performed with the octal bus

transceivers and registers

2 1 28 27 26

25 OEBA

12 13 14 15 16 17 18

NC – No internal connection

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.

The -1 versions of the SN74ALS651A and SN74ALS652A are identical to the standard versions except that the

recommended maximum I

SN54ALS652, SN54ALS653, SN74ALS653, and SN74ALS654.

for the -1 versions is increased to 48 mA. There are no -1 versions of the

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...34

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与SN74AS651-1NT相关器件

型号	品牌	描述	获取价格	数据表
SN74AS651DW	TI	OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS	获取价格
SN74AS651DW3	TI	IC,BUS TRANSCEIVER,SINGLE,8-BIT,AS-TTL,SOP,24PIN,PLASTIC	获取价格
SN74AS651DWP3	TI	IC,BUS TRANSCEIVER,SINGLE,8-BIT,AS-TTL,SOP,24PIN,PLASTIC	获取价格
SN74AS651DWR	TI	OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS	获取价格
SN74AS651FN	TI	AS SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PQCC28	获取价格
SN74AS651FN-00	TI	AS SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PQCC28	获取价格

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