Datasheet > SN54HCT645W

SN54HCT645W

更新时间： 2024-11-04 23:03:03

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
6页	112K
描述
OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

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技术参数
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SN54HCT645W 技术参数

生命周期：	Obsolete	零件包装代码：	DFP
包装说明：	DFP,	针数：	20
Reach Compliance Code：	unknown	风险等级：	5.84
其他特性：	WITH DIRECTION CONTROL	系列：	HCT
JESD-30 代码：	R-GDFP-F20	长度：	13.09 mm
负载电容（CL）：	150 pF	逻辑集成电路类型：	BUS TRANSCEIVER
位数：	8	功能数量：	1
端口数量：	2	端子数量：	20
最高工作温度：	125 °C	最低工作温度：	-55 °C
输出特性：	3-STATE	输出极性：	TRUE
封装主体材料：	CERAMIC, GLASS-SEALED	封装代码：	DFP
封装形状：	RECTANGULAR	封装形式：	FLATPACK
传播延迟（tpd）：	45 ns	认证状态：	Not Qualified
座面最大高度：	2.54 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：	YES	技术：	CMOS
温度等级：	MILITARY	端子形式：	FLAT
端子节距：	1.27 mm	端子位置：	DUAL
宽度：	6.92 mm	Base Number Matches：	1

SN54HCT645W 数据手册

SN54HCT645, SN74HCT645

OCTAL BUS TRANSCEIVERS

WITH 3-STATE OUTPUTS

SCLS019B – MARCH 1984 – REVISED MAY 1997

SN54HCT645 . . . J OR W PACKAGE

SN74HCT645 . . . DW OR N PACKAGE

(TOP VIEW)

Inputs Are TTL-Voltage Compatible

True Logic

High-Current 3-State Outputs Can Drive up

to 15 LSTTL Loads

DIR

Package Options Include Plastic

Small-Outline (DW) and Ceramic Flat (W)

Packages, Ceramic Chip Carriers (FK), and

Standard Plastic (N) and Ceramic (J)

300-mil DIPs

description

These octal bus transceivers are designed for

asynchronous two-way communication between

data buses. These devices transmit data from the

A bus to the B bus or from the B bus to the A bus,

depending upon the level at the direction-control

(DIR) input. The output-enable (OE) input can be

used to disable the device so the buses are

effectively isolated.

GND

SN54HCT645 . . . FK PACKAGE

(TOP VIEW)

20 19

The SN54HCT645 is characterized for operation

over the full military temperature range of –55°C

to 125°C. The SN74HCT645 is characterized for

operation from –40°C to 85°C.

9 10 11 12 13

FUNCTION TABLE

INPUTS

OPERATION

DIR

B data to A bus

A data to B bus

Isolation

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.

UNLESS OTHERWISE NOTED this document contains PRODUCTION

DATA information 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SN54HCT645W相关器件

型号	品牌	获取价格	描述	数据表
SN54HCT645WR	TI	获取价格	HCT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CDFP20, CERAMIC, DFP-20
SN54HCT646	TI	获取价格	OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
SN54HCT646_15	TI	获取价格	OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
SN54HCT646FK	TI	获取价格	OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
SN54HCT646FKR	TI	获取价格	HCT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CQCC28, CERAMIC, LCC-28
SN54HCT646JT	TI	获取价格	OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
SN54HCT646W	TI	获取价格	OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
SN54HCT646WR	TI	获取价格	HCT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CDFP24, CERAMIC, FP-24
SN54HCT652	TI	获取价格	OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
SN54HCT652_15	TI	获取价格	OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS

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