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MC74VHCT4051DT

更新时间： 2024-12-01 11:07:31
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Analog Multiplexer Demultiplexer

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MC74VHCT4051DT 数据手册

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Order this document  
by MC74VHCT4051/D  
SEMICONDUCTOR TECHNICAL DATA  
High–Performance Silicon–Gate CMOS  
The MC74VHCT4051 utilizes silicon–gate CMOS technology to achieve  
fast propagation delays, low ON resistances, and low OFF leakage currents.  
This analog multiplexer/demultiplexer controls analog voltages that may  
vary across the complete power supply range (from V  
to GND).  
CC  
The VHCT4051 is identical in pinout to the high–speed HC4051A and the  
metal–gate MC14051B. The Channel–Select inputs determine which one of  
the Analog Inputs/Outputs is to be connected by means of an analog switch  
to the Common Output/Input. When the Enable pin is HIGH, all analog  
switches are turned off.  
D SUFFIX  
16–LEAD SOIC PACKAGE  
CASE 751B–05  
The Channel–Select and Enable inputs are compatible with TTL–type  
input thresholds. The input protection circuitry on this device allows  
overvoltage tolerance on the input, allowing the device to be used as a  
logic–level translator from 3.0V CMOS logic to 5.0V CMOS Logic or from  
1.8V CMOS logic to 3.0V CMOS Logic while operating at the higher–voltage  
power supply.  
DT SUFFIX  
16–LEAD TSSOP PACKAGE  
CASE 948F–01  
The MC74VHCT4051 input structure provides protection when voltages  
up to 7V are applied, regardless of the supply voltage. This allows the  
MC74VHCT4051 to be used to interface 5V circuits to 3V circuits.  
ORDERING INFORMATION  
MC74VHCTXXXXD  
SOIC  
This device has been designed so that the ON resistance (R ) is more  
on  
MC74VHCTXXXXDT TSSOP  
linear over input voltage than R of metal–gate CMOS analog switches.  
on  
For a multiplexer/demultiplexer with channel–select latches, see  
VHC4351.  
FUNCTION TABLE – MC74VHCT4051  
•
•
•
•
•
•
Fast Switching and Propagation Speeds  
Low Crosstalk Between Switches  
Diode Protection on All Inputs/Outputs  
Control Inputs  
Select  
Enable  
C
B
A
ON Channels  
Analog Power Supply Range (V  
– GND) = 2.0 to 6.0 V  
CC  
Digital (Control) Power Supply Range (V  
– GND) = 2.0 to 6.0 V  
L
L
L
L
L
L
L
L
H
L
L
L
L
L
H
H
L
L
H
L
H
L
H
L
H
X
X0  
X1  
X2  
X3  
X4  
X5  
X6  
X7  
NONE  
CC  
Improved Linearity and Lower ON Resistance Than Metal–Gate  
Counterparts  
Low Noise  
L
•
•
H
H
H
H
X
In Compliance With the Requirements of JEDEC Standard No. 7A  
L
H
H
X
LOGIC DIAGRAM  
MC74VHCT4051  
Single–Pole, 8–Position Plus Common Off  
X = Don’t Care  
13  
X0  
14  
X1  
15  
3
X2  
X3  
X4  
X5  
X6  
X7  
A
COMMON  
OUTPUT/  
INPUT  
X
ANALOG  
INPUTS/  
12  
1
Pinout: MC74VHCT4051 (Top View)  
MULTIPLEXER/  
DEMULTIPLEXER  
OUTPUTS  
V
X2  
15  
X1  
14  
X0  
13  
X3  
12  
A
B
C
9
CC  
5
16  
11  
10  
2
4
11  
10  
9
CHANNEL  
SELECT  
INPUTS  
B
C
PIN 16 = V  
1
2
3
4
5
6
7
CC  
PIN 8 = GND  
8
6
ENABLE  
X4  
X6  
X
X7  
X5 Enable NC  
GND  
This document contains information on a new product. Specifications and information herein are subject to  
change without notice.  
10/98  
REV 0  
Motorola, Inc. 1998  
1234567...12

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