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SN54AS21FK PDF预览

SN54AS21FK

更新时间: 2024-09-30 22:59:15
品牌 Logo 应用领域
德州仪器 - TI 栅极触发器逻辑集成电路输入元件
页数 文件大小 规格书
5页 87K
描述
DUAL 4-INPUT POSITIVE-AND GATES

SN54AS21FK 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:5.92
系列:ASJESD-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:AND GATE功能数量:2
输入次数:4端子数量:20
最高工作温度:125 °C最低工作温度:-55 °C
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):12 mA
传播延迟(tpd):6.5 ns认证状态:Not Qualified
施密特触发器:NO座面最大高度:2.03 mm
子类别:Gates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

SN54AS21FK 数据手册

 浏览型号SN54AS21FK的Datasheet PDF文件第2页浏览型号SN54AS21FK的Datasheet PDF文件第3页浏览型号SN54AS21FK的Datasheet PDF文件第4页浏览型号SN54AS21FK的Datasheet PDF文件第5页 
SN54ALS21A, SN54AS21, SN74ALS21A, SN74AS21  
DUAL 4-INPUT POSITIVE-AND GATES  
SDAS085B – APRIL 1982 – REVISED DECEMBER 1994  
SN54ALS21A, SN54AS21 . . . J PACKAGE  
SN74ALS21A, SN74AS21 . . . D OR N PACKAGE  
(TOP VIEW)  
Package Options Include Plastic  
Small-Outline (D) Packages, Ceramic Chip  
Carriers (FK), and Standard Plastic (N) and  
Ceramic (J) 300-mil DIPs  
1A  
1B  
V
CC  
1
2
3
4
5
6
7
14  
13  
12  
11  
10  
9
2D  
2C  
NC  
2B  
2A  
2Y  
description  
NC  
1C  
These devices contain two independent 4-input  
positive-AND gates. They perform the Boolean  
functions Y = A B C D or Y = A + B + C + D  
in positive logic.  
1D  
1Y  
GND  
8
The SN54ALS21A and SN54AS21 are  
characterized for operation over the full military  
temperature range of 55°C to 125°C. The  
SN74ALS21A and SN74AS21 are characterized  
for operation from 0°C to 70°C.  
SN54ALS21A, SN54AS21 . . . FK PACKAGE  
(TOP VIEW)  
3
2
1
20 19  
18  
FUNCTION TABLE  
(each gate)  
NC  
NC  
1C  
NC  
1D  
4
5
6
7
8
2C  
NC  
NC  
NC  
2B  
17  
16  
15  
14  
INPUTS  
OUTPUT  
Y
A
H
L
B
C
H
X
X
L
D
H
X
X
X
L
H
X
L
H
L
L
L
L
9 10 11 12 13  
X
X
X
X
X
X
NC – No internal connection  
logic symbol  
logic diagram (positive logic)  
1
1
&
1A  
1A  
2
2
1B  
1B  
4
6
6
1Y  
4
5
1Y  
2Y  
1C  
1D  
1C  
5
1D  
9
2A  
9
2A  
10  
2B  
8
10  
12  
2B  
2C  
8
12  
2Y  
2C  
13  
2D  
13  
2D  
This symbol is in accordance with ANSI/IEEE Std 91-1984 and  
IEC Publication 617-12.  
Pin numbers shown are for the D, J, and N packages.  
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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IC,BUFFER/DRIVER,DUAL,4-BIT,AS-TTL,LLCC,20PIN,CERAMIC