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MC74HC251NG PDF预览

MC74HC251NG

更新时间: 2024-09-30 13:11:19
品牌 Logo 应用领域
摩托罗拉 - MOTOROLA 复用器
页数 文件大小 规格书
7页 216K
描述
HC SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDIP16, LEAD FREE, PLASTIC, DIP-16

MC74HC251NG 技术参数

生命周期:Obsolete零件包装代码:DIP
包装说明:DIP,针数:16
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.71系列:HC
JESD-30 代码:R-PDIP-T16长度:19.175 mm
逻辑集成电路类型:MULTIPLEXER功能数量:1
输入次数:8输出次数:1
端子数量:16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:PLASTIC/EPOXY
封装代码:DIP封装形状:RECTANGULAR
封装形式:IN-LINE传播延迟(tpd):62 ns
认证状态:Not Qualified座面最大高度:4.44 mm
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:MILITARY
端子形式:THROUGH-HOLE端子节距:2.54 mm
端子位置:DUAL宽度:7.62 mm
Base Number Matches:1

MC74HC251NG 数据手册

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SEMICONDUCTOR TECHNICAL DATA  
J SUFFIX  
CERAMIC PACKAGE  
CASE 620–10  
16  
High–Performance Silicon–Gate CMOS  
1
The MC54/74HC251 is identical in pinout to the LS251. The device inputs  
are compatible with standard CMOS outputs; with pullup resistors, they are  
compatible with LSTTL outputs.  
This device selects one of the eight binary Data Inputs, as determined by  
the Address Inputs. The Output Enable pin must be a low level for the  
selected data to appear at the outputs. If Output Enable is high, both the Y  
and the Y outputs are in the high–impedance state. This 3–state feature  
allows the HC251 to be used in bus–oriented systems.  
N SUFFIX  
PLASTIC PACKAGE  
CASE 648–08  
16  
1
D SUFFIX  
SOIC PACKAGE  
CASE 751B–05  
16  
The HC251 is similar in function to the HC151 which does not have  
3–state outputs.  
1
Output Drive Capability: 10 LSTTL Loads  
Outputs Directly Interface to CMOS, NMOS, and TTL  
Operating Voltage Range: 2 to 6 V  
ORDERING INFORMATION  
MC54HCXXXJ  
MC74HCXXXN  
MC74HCXXXD  
Ceramic  
Plastic  
SOIC  
Low Input Current: 1 µA  
High Noise Immunity Characteristic of CMOS Devices  
In Compliance with the Requirements Defined by JEDEC Standard  
No. 7A  
PIN ASSIGNMENT  
Chip Complexity: 134 FETs or 33.5 Equivalent Gates  
D3  
D2  
1
2
16  
15  
V
CC  
D4  
D1  
D0  
Y
3
4
5
6
7
8
14  
13  
12  
11  
10  
9
D5  
D6  
D7  
A0  
A1  
A2  
LOGIC DIAGRAM  
4
D0  
Y
3
D1  
OUTPUT  
ENABLE  
5
2
Y
Y
D2  
D3  
D4  
GND  
1
DATA  
INPUTS  
DATA  
OUTPUTS  
15  
14  
13  
12  
6
D5  
D6  
D7  
FUNCTION TABLE  
Inputs  
Outputs  
Output  
A2 A1 A0 Enable  
11  
10  
9
A0  
A1  
A2  
Y
Y
ADDRESS  
INPUTS  
X
L
X
L
X
L
H
L
L
L
L
L
L
L
L
Z
Z
D0  
D1  
D2  
D3  
D4  
D5  
D6  
D7  
D0  
D1  
D2  
D3  
D4  
D5  
D6  
D7  
L
L
L
H
H
H
H
L
H
L
H
L
H
L
H
7
OUTPUT ENABLE  
H
H
L
L
H
H
PIN 16 = V  
CC  
PIN 8 = GND  
Z = high impedance  
D0, D1, , D7 = the level of the respective  
D input.  
10/95  
REV 6  
Motorola, Inc. 1995  

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