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MM74HC85J PDF预览

MM74HC85J

更新时间: 2024-11-15 21:53:43
品牌 Logo 应用领域
美国国家半导体 - NSC 比较器
页数 文件大小 规格书
6页 171K
描述
4-Bit Magnitude Comparator

MM74HC85J 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:DIP, DIP16,.3Reach Compliance Code:unknown
HTS代码:8542.39.00.01风险等级:5.8
其他特性:CASCADABLE系列:HC/UH
JESD-30 代码:R-GDIP-T16JESD-609代码:e0
长度:19.43 mm负载电容(CL):50 pF
逻辑集成电路类型:MAGNITUDE COMPARATOR位数:4
功能数量:1端子数量:16
最高工作温度:85 °C最低工作温度:-40 °C
输出极性:TRUE封装主体材料:CERAMIC, GLASS-SEALED
封装代码:DIP封装等效代码:DIP16,.3
封装形状:RECTANGULAR封装形式:IN-LINE
峰值回流温度(摄氏度):NOT SPECIFIED电源:2/6 V
传播延迟(tpd):53 ns认证状态:Not Qualified
座面最大高度:5.08 mm子类别:Arithmetic Circuits
最大供电电压 (Vsup):6 V最小供电电压 (Vsup):2 V
标称供电电压 (Vsup):5 V表面贴装:NO
技术:CMOS温度等级:INDUSTRIAL
端子面层:Tin/Lead (Sn/Pb)端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:7.62 mm
Base Number Matches:1

MM74HC85J 数据手册

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November 1995  
MM54HC85/MM74HC85  
4-Bit Magnitude Comparator  
General Description  
The MM54HC85/MM74HC85 is a 4-bit magnitude compara-  
tor that utilizes advanced silicon-gate CMOS technology. It  
is designed for high speed comparison of two four bit words.  
This circuit has eight comparison inputs, 4 for each word;  
The comparator’s outputs can drive 10 low power Schottky  
TTL (LS-TTL) equivalent loads, and is functionally, and pin  
equivalent to the 54LS85/74LS85. All inputs are protected  
from damage due to static discharge by diodes to V  
ground.  
and  
CC  
k
l
e
three cascade inputs (A B, A B, A B); and three deci-  
k
l
e
sion outputs (A B, A B, A B). The result of a comparison  
is indicated by a high level on one of the decision outputs.  
Thus it may be determined whether one word is ‘‘greater  
than,’’ ‘‘less than,’’ or ‘‘equal to’’ the other word. By con-  
necting the outputs of the least significant stage to the cas-  
cade inputs of the next stage, words of greater than four bits  
can be compared. In addition the least significant stage  
Features  
Y
Typical propagation delay: 27 ns  
Y
Wide operating voltage range: 26V  
Y
Low input current: 1 mA maximum  
Y
Low quiescent current: 80 mA maximum (74HC Series)  
Y
Output drive capability: 10 LS-TTL loads  
e
must have a high level applied to the A B input, and a low  
k
l
level to the A B, and A B inputs.  
Connection Diagram  
Dual-In-Line Package  
TL/F/5205–1  
Order Number MM54HC85 or MM74HC85  
Truth Table  
Comparing  
Inputs  
Cascading  
Inputs  
Outputs  
l
k
l
k
e
e
A3, B3  
A2, B2  
A1, B1  
A0, B0  
A
B
A
B
A
B
A
B
A
B
A
B
l
A3 B3  
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
H
L
X
X
X
X
X
X
X
X
L
H
X
H
L
X
X
X
X
X
X
X
X
L
H
L
H
L
H
L
H
L
H
L
L
L
H
L
H
L
H
L
H
L
H
L
L
L
L
L
L
L
L
L
L
L
H
L
L
k
A3 B3  
l
e
e
e
e
e
e
e
e
e
e
e
A3  
A3  
A3  
A3  
A3  
A3  
A3  
A3  
A3  
A3  
A3  
B3  
B3  
B3  
B3  
B3  
B3  
B3  
B3  
B3  
B3  
B3  
A2 B2  
k
A2 B2  
l
e
e
e
e
e
e
e
e
e
A2  
A2  
A2  
A2  
A2  
A2  
A2  
A2  
A2  
B2  
B2  
B2  
B2  
B2  
B2  
B2  
B2  
B2  
A1 B1  
k
A1 B1  
l
e
e
e
e
e
e
e
A1  
A1  
A1  
A1  
A1  
A1  
A1  
B1  
B1  
B1  
B1  
B1  
B1  
B1  
A0 B0  
k
A0 B0  
e
e
e
e
e
A0  
A0  
A0  
A0  
A0  
B0  
B0  
B0  
B0  
B0  
L
H
L
H
L
L
X
H
L
L
H
C
1995 National Semiconductor Corporation  
TL/F/5205  
RRD-B30M115/Printed in U. S. A.  

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