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SN74F621N-10 PDF预览

SN74F621N-10

更新时间： 2024-10-03 15:52:11
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
11页 391K
描述
F/FAST SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDIP20

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SN74F621N-10 技术参数

生命周期：Obsolete包装说明：DIP,
Reach Compliance Code：unknown风险等级：5.5
其他特性：WITH INDEPENDENT OUTPUT ENABLE FOR EACH DIRECTION系列：F/FAST
JESD-30 代码：R-PDIP-T20长度：24.325 mm
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：70 °C
最低工作温度：输出特性：OPEN-COLLECTOR
输出极性：TRUE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）：8.5 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

SN74F621N-10 数据手册

 浏览型号SN74F621N-10的Datasheet PDF文件第2页浏览型号SN74F621N-10的Datasheet PDF文件第3页浏览型号SN74F621N-10的Datasheet PDF文件第4页浏览型号SN74F621N-10的Datasheet PDF文件第5页浏览型号SN74F621N-10的Datasheet PDF文件第6页浏览型号SN74F621N-10的Datasheet PDF文件第7页 
SN54F621, SN74F621  
OCTAL BUS TRANSCEIVERS  
WITH OPEN-COLLECTOR OUTPUTS  
SDFS004B – D2932, MARCH 1987 – REVISED OCTOBER 1993  
SN54F621 . . . J PACKAGE  
SN74F621 . . . DW OR N PACKAGE  
(TOP VIEW)  
• Local Bus-Latch Capability  
• Noninverting Logic  
• Package Options Include Plastic  
Small-Outline Packages, Ceramic Chip  
Carriers, and Standard Plastic and Ceramic  
300-mil DIPs  
OEAB  
A1  
V
CC  
OEBA  
1
2
3
4
5
6
7
8
9
20  
19  
18  
17  
16  
15  
14  
13  
12  
A2  
A3  
A4  
A5  
A6  
A7  
A8  
B1  
B2  
B3  
B4  
B5  
B6  
B7  
description  
These octal bus transceivers are designed for  
asynchronous communication between data  
buses. Thecontrolfunctionimplementationallows  
for maximum flexibility in timing.  
GND 10  
11 B8  
These devices allow data transmission from the A  
bus to the B bus or from the B bus to the A bus  
depending upon the logic levels at the output  
enable (OEAB and OEBA) inputs.  
SN54F621 . . . FK PACKAGE  
(TOP VIEW)  
The output-enable inputs can be used to disable  
the device so that the buses are effectively  
isolated. The dual-enable configuration gives the  
transceivers the capability of storing data by  
simultaneously enabling OEAB and OEBA. Each  
output reinforces its input in this configuration.  
When both OEAB and OEBA are enabled and all  
other data sources to the two sets of bus lines are  
at high impedance, both sets of bus lines (16 in all)  
will remain at their last states.  
3
2
1
20 19  
18  
B1  
17 B2  
A3  
A4  
A5  
A6  
A7  
4
5
6
7
8
16  
15  
14  
B3  
B4  
B5  
9 10 11 12 13  
The SN54F621 is characterized for operation over  
the full military temperature range of –55°C to  
125°C. The SN74F621 is characterized for  
operation from 0°C to 70°C.  
FUNCTION TABLE  
INPUTS  
OPERATION  
OEBA  
OEAB  
L
L
B data to A bus  
B data to A bus,  
A data to B bus  
L
H
H
H
L
Isolation  
H
A data to B bus  
Copyright 1993, Texas Instruments Incorporated  
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  
1234567...11

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