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SN54ALS245AFK PDF预览

SN54ALS245AFK

更新时间: 2024-11-24 23:06:11
品牌 Logo 应用领域
德州仪器 - TI 总线收发器逻辑集成电路输出元件
页数 文件大小 规格书
7页 114K
描述
OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

SN54ALS245AFK 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:QFN包装说明:QCCN, LCC20,.35SQ
针数:20Reach Compliance Code:not_compliant
HTS代码:8542.39.00.01风险等级:5.46
其他特性:WITH DIRECTION CONTROL控制类型:COMMON CONTROL
计数方向:BIDIRECTIONAL系列:ALS
JESD-30 代码:S-CQCC-N20长度:8.89 mm
负载电容(CL):50 pF逻辑集成电路类型:BUS TRANSCEIVER
最大I(ol):0.012 A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, METAL-SEALED COFIRED
封装代码:QCCN封装等效代码:LCC20,.35SQ
封装形状:SQUARE封装形式:CHIP CARRIER
峰值回流温度(摄氏度):NOT SPECIFIED电源:5 V
最大电源电流(ICC):60 mAProp。Delay @ Nom-Sup:30 ns
传播延迟(tpd):14 ns认证状态:Not Qualified
座面最大高度:2.03 mm子类别:Bus Driver/Transceivers
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:MILITARY
端子形式:NO LEAD端子节距:1.27 mm
端子位置:QUAD处于峰值回流温度下的最长时间:NOT SPECIFIED
翻译:N/A宽度:8.89 mm
Base Number Matches:1

SN54ALS245AFK 数据手册

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SN54ALS245A, SN54AS245, SN74ALS245A, SN74AS245  
OCTAL BUS TRANSCEIVERS  
WITH 3-STATE OUTPUTS  
SDAS272 – NOVEMBER 1994  
SN54ALS245A, SN54AS245 . . . J PACKAGE  
SN74ALS245A, SN74AS245 . . . DW OR N PACKAGE  
(TOP VIEW)  
3-State Outputs Drive Bus Lines Directly  
pnp Inputs Reduce dc Loading  
Package Options Include Plastic  
Small-Outline (DW) Packages, Ceramic  
Chip Carriers (FK), and Standard Plastic (N)  
and Ceramic (J) 300-mil DIPs  
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
DIR  
A1  
V
CC  
OE  
B1  
B2  
B3  
B4  
B5  
B6  
B7  
B8  
A2  
A3  
description  
A4  
A5  
These octal bus transceivers are designed for  
asynchronous two-way communication between  
data buses. The control-function implementation  
minimizes external timing requirements.  
A6  
A7  
A8  
GND  
The 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 level at the  
direction-control (DIR) input. The output-enable  
(OE) input can be used to disable the device so  
that the buses are effectively isolated.  
SN54ALS245A, SN54AS245 . . . FK PACKAGE  
(TOP VIEW)  
The -1 version of the SN74ALS245A is identical to  
the standard version, except that the  
3
2
1
20 19  
18  
B1  
B2  
B3  
B4  
B5  
A3  
A4  
A5  
A6  
A7  
4
5
6
7
8
17  
16  
15  
14  
recommended maximum I  
is increased to  
OL  
48 mA. There is no -1 version of the  
SN54ALS245A.  
9 10 11 12 13  
The SN54ALS245A and SN54AS245 are  
characterized for operation over the full military  
temperature range of 55°C to 125°C. The  
SN74ALS245A  
and  
SN74AS245  
are  
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
Copyright 1994, 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  

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