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SN54ALS251FK PDF预览

SN54ALS251FK

更新时间: 2024-11-08 23:06:11
品牌 Logo 应用领域
德州仪器 - TI 复用器输出元件
页数 文件大小 规格书
6页 99K
描述
1-OF-8 DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS

SN54ALS251FK 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:QLCC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:5.36
系列:ALSJESD-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:MULTIPLEXER最大I(ol):0.012 A
功能数量:1输入次数:8
输出次数:1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:COMPLEMENTARY
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):10 mA
Prop。Delay @ Nom-Sup:38 ns传播延迟(tpd):34 ns
认证状态:Not Qualified座面最大高度:2.03 mm
子类别:Multiplexer/Demultiplexers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宽度:8.89 mm
Base Number Matches:1

SN54ALS251FK 数据手册

 浏览型号SN54ALS251FK的Datasheet PDF文件第2页浏览型号SN54ALS251FK的Datasheet PDF文件第3页浏览型号SN54ALS251FK的Datasheet PDF文件第4页浏览型号SN54ALS251FK的Datasheet PDF文件第5页浏览型号SN54ALS251FK的Datasheet PDF文件第6页 
SN54ALS251, SN74ALS251  
1-OF-8 DATA SELECTORS/MULTIPLEXERS  
WITH 3-STATE OUTPUTS  
SDAS215A – APRIL 1982 – REVISED DECEMBER 1994  
SN54ALS251 . . . J PACKAGE  
SN74ALS251 . . . D OR N PACKAGE  
(TOP VIEW)  
3-State Version of the ALS151  
3-State Outputs Interface Directly With  
System Bus  
Perform Parallel-to-Serial Conversion  
D3  
D2  
D1  
D0  
Y
W
OE  
GND  
V
CC  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
Complementary Outputs Provide True and  
D4  
D5  
D6  
D7  
A
Inverted Data  
Package Options Include Plastic  
Small-Outline (D) Packages, Ceramic Chip  
Carriers (FK), and Standard Plastic (N) and  
Ceramic (J) 300-mil DIPs  
B
C
description  
SN54ALS251 . . . FK PACKAGE  
(TOP VIEW)  
These data selectors/multiplexers contain full  
binary decoding to select one-of-eight data  
sources and feature controlled complementary  
3-state outputs.  
The 3-state outputs can interface with and drive  
data lines of bus-organized systems. With all but  
one of the common outputs disabled (at the  
high-impedance state), the low impedance of the  
signal-enabled output drives the bus line to a high  
or low logic level. Both outputs are controlled by  
the output-enable (OE) input. The outputs are  
disabled when OE is high.  
3
2
1
20 19  
18 D5  
D1  
D0  
NC  
Y
4
5
6
7
8
17  
16  
15  
14  
D6  
NC  
D7  
A
W
9 10 11 12 13  
The SN54ALS251 is characterized for operation  
over the full military temperature range of 55°C  
to 125°C. The SN74ALS251 is characterized for  
operation from 0°C to 70°C.  
NC – No internal connection  
FUNCTION TABLE  
INPUTS  
SELECT  
OUTPUTS  
OE  
C
X
L
B
X
L
A
X
L
Y
W
Z
H
L
L
L
L
L
L
L
L
Z
D0  
D1  
D2  
D3  
D4  
D5  
D6  
D7  
D0  
D1  
D2  
D3  
D4  
D5  
D6  
D7  
L
L
H
L
L
H
H
L
L
H
L
H
H
H
H
L
H
L
H
H
H
D0, D1, . . . D7 = the level of the respective D input  
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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