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JM54AC521BSA PDF预览

JM54AC521BSA

更新时间: 2024-11-03 10:12:03
品牌 Logo 应用领域
德州仪器 - TI 逻辑集成电路
页数 文件大小 规格书
10页 199K
描述
Identity Comparator, CMOS, CDFP20

JM54AC521BSA 数据手册

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September 1998  
54AC521 54ACT521  
8-Bit Identity Comparator  
General Description  
The AC/ACT521 is an expandable 8-bit comparator. It com-  
pares two words of up to eight bits each and provides a LOW  
output when the two words match bit for bit. The expansion  
Features  
n ICC reduced by 50%  
n Compares two 8-bit words in 6.5 ns typ  
n Expandable to any word length  
n Outputs source/sink 24 mA  
n ACT521 has TTL-compatible inputs  
n Standard microcircuit Drawing (SMD)  
54AC521: 5962-90985  
input IA  
also serves as an active LOW enable input.  
=
B
54ACT521: 5962-89793  
Logic Symbols  
Connection Diagram  
Pin Assignment  
for DIP and CERPACK  
DS100291-1  
IEEE/IEC  
DS100291-2  
Pin Assignment  
for LCC  
DS100291-4  
DS100291-3  
Pin Descriptions  
Pin Names  
Description  
A0–A7  
B0–B7  
TA  
Word A Inputs  
Word B Inputs  
Expansion or Enable Input  
Identity Output  
=
B
OA  
=
B
FACT is a trademark of Fairchild Semiconductor Corporation.  
© 1998 National Semiconductor Corporation  
DS100291  
www.national.com  

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