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SN74F2245DWR PDF预览

SN74F2245DWR

更新时间: 2024-09-13 13:01:51
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
5页 87K
描述
Octal bus transceivers with series damping resistors 20-SOIC 0 to 70

SN74F2245DWR 技术参数

是否无铅:含铅生命周期:Obsolete
Reach Compliance Code:unknownHTS代码:8542.39.00.01
Factory Lead Time:1 week风险等级:5.44
Is Samacsys:N系列:F/FAST
JESD-30 代码:R-PDSO-G20长度:12.8 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:3-STATE WITH SERIES RESISTOR
输出极性:TRUE封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE传播延迟(tpd):7.1 ns
认证状态:Not Qualified座面最大高度:2.65 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:TTL温度等级:COMMERCIAL
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL宽度:7.5 mm
Base Number Matches:1

SN74F2245DWR 数据手册

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SN74F2245  
25-OCTAL BUS TRANSCEIVER  
WITH 3-STATE OUTPUTS  
SDFS099 – MAY 1995  
DB OR N PACKAGE  
(TOP VIEW)  
3-State Outputs Drive Bus Lines or Buffer  
Memory Address Registers  
Package Options Include Plastic  
Small-Outline (DB) Packages and Plastic  
300-mil DIPs (N)  
DIR  
A1  
A2  
A3  
A4  
A5  
A6  
A7  
A8  
V
CC  
1
2
3
4
5
6
7
8
9
20  
19  
18  
17  
16  
15  
14  
OE  
B1  
B2  
B3  
B4  
B5  
description  
The SN74F2245 is designed for asynchronous  
communication between data buses. The devices  
transmit data from the A bus to the B bus or from  
the B bus to the A bus depending upon the logic  
level at the direction-control (DIR) input. The  
output-enable (OE) input disables the device so  
the buses are effectively isolated.  
13 B6  
12 B7  
11 B8  
GND 10  
Both A and B outputs can sink up to 12 mA; 25-resistors are included in the lower output circuit to reduce  
overshoot and undershoot.  
The SN74F2245 is characterized for operation from 0°C to 70°C.  
FUNCTION TABLE  
INPUTS  
OPERATION  
OE  
L
DIR  
L
B data to A bus  
A data to B bus  
Isolation  
L
H
H
X
logic symbol  
logic diagram (positive logic)  
19  
1
DIR  
G3  
OE  
1
DIR  
3EN1[BA]  
3EN2[AB]  
19  
18  
OE  
B1  
2
18  
A1  
B1  
1
2
A1  
2
3
17  
16  
15  
14  
13  
12  
11  
A2  
4
B2  
B3  
B4  
B5  
B6  
B7  
B8  
A3  
5
A4  
6
A5  
7
A6  
8
A7  
9
To Seven Other Channels  
A8  
This symbol is in accordance with ANSI/IEEE Std 91-1984 and  
IEC Publication 617-12.  
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.  
Copyright 1995, 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.  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

SN74F2245DWR 替代型号

型号 品牌 替代类型 描述 数据表
SN74F2245DBLE TI

功能相似

F/FAST SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20, PLASTIC, SO-20
SN74F2245DBR TI

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Octal bus transceivers with series damping resistors 20-SSOP 0 to 70
SN74F2245N TI

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25-ohm OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS

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