SEMICONDUCTOR TECHNICAL DATA
1
REV 0
Motorola, Inc. 1997
12/97
"
" !
High–Performance Silicon–Gate CMOS
The MC74HC4351A utilizes silicon–gate CMOS technology to achieve
fast propagation delays, low ON resistances, and low OFF leakage currents.
These analog multiplexers/demultiplexers control analog voltages that may
vary across the complete power supply range (from VCC to VEE).
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. The data at the Channel–Select inputs may be latched by
using the active–low Latch Enable pin. When Latch Enable is high, the latch
is transparent. When either Enable 1 (active low) or Enable 2 (active high) is
inactive, all analog switches are turned off.
The Channel–Select and Enable inputs are compatible with standard
CMOS outputs; with pullup resistors, they are compatible with LSTTL
outputs.
The device has been designed so the ON resistance (Ron) is more linear
over input voltage than Ron of metal–gate CMOS analog switches.
For multiplexers/demultiplexers without latches, see the HC4051A,
HC4052A, and HC4053A.
• Fast Switching and Propagation Speeds
• Low Crosstalk Between Switches
• Diode Protection on All Inputs/Outputs
• Analog Power Supply Range (VCC – VEE) = 2.0 to 12.0 V
• Digital (Control) Power Supply Range (VCC – GND) = 2.0 to 6.0 V
• Improved Linearity and Lower ON Resistance than Metal–Gate Types
• Low Noise
• In Compliance with the Requirements Defined by JEDEC Standard
No. 7A
• Chip Complexity: 222 FETs or 55.5 Equivalent Gates
This document contains information on a new product. Specifications and information herein are subject to
change without notice.
PIN ASSIGNMENT
MC74HC4351A
X5
X
NC
X6
X4
GND
V
EE
ENABLE 2
ENABLE 1
X7 5
4
3
2
1
10
9
8
7
6
14
15
16
17
18
19
20
11
12
13
X3
X0
X1
X2
V
CC
LATCH
ENABLE
C
B
NC
A
NC = NO CONNECTION
DW SUFFIX
SOIC PACKAGE
CASE 751D–04
N SUFFIX
PLASTIC PACKAGE
CASE 738–03
ORDERING INFORMATION
MC74HCXXXXAN
MC74HCXXXXADW
MC74HCXXXXADT
Plastic
SOIC
TSSOP
1
20
1
20
DT SUFFIX
TSSOP PACKAGE
CASE 948E–02
1
20