M74HC4851
SINGLE 8 CHANNEL ANALOG MUX/DEMUX
WITH INJECTION CURRENT PROTECTION
s
s
s
s
s
s
s
s
s
LOW POWER DISSIPATION:
I
CC
= 2µA(MAX.) at T
A
=25°C
INJECTION CURRENT PROTECTION:
V
∆OUT
<1mV at V
CC
=5V I
IN
≤1mA
R
S
≤3.9KΩ
"ON" RESISTANCE at T
A
=25°C:
215Ω TYP. (V
CC
= 3.0V)
150Ω TYP. (V
CC
= 4.5V)
160Ω TYP. (V
CC
= 6V)
FAST SWITCHING:
t
pd
= 8.6ns (TYP.) at T
A
= 25 °C, V
CC
= 4.5V
WIDE OPERATING SUPPLY VOLTAGE
RANGE: V
CC
= 2V TO 6V
HIGH NOISE IMMUNITY:
V
NIH
= V
NIL
= 28% V
CC
(MIN.)
PIN AND FUNCTION COMPATIBLE WITH
SERIES 4051, 4851
LATCH-UP PERFORMANCE EXCEEDS
500mA (JESD 17)
ESD PERFORMANCE:
HBM > 2000V (JESD22-A114B);
MM > 200V
SOP
SOP-Large
TSSOP
ORDER CODES
PACKAGE
TUBE
T&R
M74HC4851RM13TR
M74HC4851MWR
M74HC4851TTR
SOP
M74HC4851M1R
SOP-Large
TSSOP
DESCRIPTION
The M74HC4851 is a single eight-channel analog
MULTIPLEXER/DEMULTIPLEXER
fabricated
2
MOS technology.
with silicon gate C
It is pin to pin compatible with the equivalent to
standard HC4051 and MC14051, but feature
injection current effect control. This make this
device especially suited for usage in automotive
applications where voltages in excess of normal
PIN CONNECTION AND IEC LOGIC SYMBOLS
logic voltage are common. The injection current
effect control allows signals at disabled input
channels to exceed the supply voltage range or go
down ground without affecting the signal of the
enabled analog channel. This eliminated the need
for external diode-resistor networks typically used
to keep the analog channel signals within the
supply voltage range. This analog switch is
bidirectional and digitally controlled. It have three
binary control inputs A, B, and C to select 1 of 8 to
be turned on, and connected to the output, and a
INH input to disable all channel.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
November 2003
1/15
STMICROELECTRONICS [ STMICROELECTRONICS ]
