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SN54ALS857FK PDF预览

SN54ALS857FK

更新时间: 2024-11-03 23:06:11
品牌 Logo 应用领域
德州仪器 - TI 解复用器逻辑集成电路输出元件
页数 文件大小 规格书
11页 256K
描述
HEX 2-TO-1 UNIVERSAL MULTIPLEXERS WITH 3-STATE OUTPUTS

SN54ALS857FK 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, LCC28,.45SQ
针数:28Reach Compliance Code:not_compliant
HTS代码:8542.39.00.01风险等级:5.46
系列:ALSJESD-30 代码:S-CQCC-N28
长度:11.43 mm负载电容(CL):50 pF
逻辑集成电路类型:MULTIPLEXER功能数量:6
输入次数:2输出次数:1
端子数量:28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:CONFIGURABLE封装主体材料:CERAMIC, METAL-SEALED COFIRED
封装代码:QCCN封装等效代码:LCC28,.45SQ
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):33 mA传播延迟(tpd):37 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:11.43 mm
Base Number Matches:1

SN54ALS857FK 数据手册

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SN54ALS857, SN74ALS857  
HEX 2-TO-1 UNIVERSAL MULTIPLEXERS  
WITH 3-STATE OUTPUTS  
SDAS170A – DECEMBER 1982 – REVISED JANUARY 1995  
SN54ALS857 . . . JT PACKAGE  
SN74ALS857 . . . DW OR NT PACKAGE  
(TOP VIEW)  
Select True or Complementary Data  
Perform AND/NAND (Masking) of  
A or B Operand  
Cascadable to Expand Number of  
S0  
1A  
1B  
1Y  
2A  
2B  
2Y  
3A  
3B  
V
CC  
1
2
3
4
5
6
7
8
9
24  
Operands  
23 S1  
22 6A  
21 6B  
20 6Y  
19 5A  
18 5B  
17 5Y  
16 4A  
15 4B  
14 4Y  
13 COMP  
Detect Zeros on A or B Operands  
3-State Outputs Interface Directly With  
System Bus  
Package Options Include Plastic  
Small-Outline (DW) Packages, Ceramic  
Chip Carriers (FK), and Standard Plastic  
(NT) and Ceramic (JT) 300-mil DIPs  
3Y 10  
OPER = 0 11  
GND 12  
description  
The ALS857 are hextuple 2-line to 1-line  
multiplexers with 3-state outputs. The devices can  
provide either true (COMP low) or inverted  
(COMP high) data at the Y outputs. In addition, the  
ALS857 perform the logical AND function (A B)  
and the clear function as well. The four modes of  
operation are:  
SN54ALS857 . . . FK PACKAGE  
(TOP VIEW)  
4
3
2
1
28 27 26  
25  
1Y  
2A  
2B  
NC  
2Y  
3A  
3B  
6B  
6Y  
5A  
NC  
5B  
5Y  
4A  
5
Select A-data inputs  
Select B-data inputs  
AND A inputs with B inputs  
Clear  
24  
23  
22  
21  
20  
19  
6
7
8
9
10  
11  
In either of the first two modes, OPER = 0 is high  
if all the selected A or B inputs are low. The six Y  
outputs and the OPER = 0 output are all 3-state  
12 13 14 15 16 17 18  
and rated at 12-mA and 24-mA I  
for the  
OL  
SN54ALS857 and SN74ALS857, respectively. All  
outputscanbeplacedinthehigh-impedancestate  
by applying a high level to the COMP, S0, and S1  
inputs simultaneously.  
NC – No internal connection  
The SN54ALS857 is characterized for operation over the full military temperature range of 55°C to 125°C. The  
SN74ALS857 is characterized for operation from 0°C to 70°C.  
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  

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