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MC74HC251DD PDF预览

MC74HC251DD

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/UH SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO16, SOIC-16

MC74HC251DD 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:SOP, SOP16,.25针数:16
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.77系列:HC/UH
JESD-30 代码:R-PDSO-G16JESD-609代码:e0
长度:9.9 mm负载电容(CL):50 pF
逻辑集成电路类型:MULTIPLEXER最大I(ol):0.004 A
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:SOP
封装等效代码:SOP16,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):NOT SPECIFIED
电源:2/6 VProp。Delay @ Nom-Sup:55 ns
传播延迟(tpd):62 ns认证状态:Not Qualified
座面最大高度:1.75 mm子类别:Multiplexer/Demultiplexers
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:YES
技术:CMOS温度等级:MILITARY
端子面层:Tin/Lead (Sn/Pb)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:3.9 mm
Base Number Matches:1

MC74HC251DD 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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