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74LVX157 Datasheet(PDF) 1 Page - STMicroelectronics

Part No. 74LVX157
Description  LOW VOLTAGE QUAD 2 CHANNEL MULTIPLEXER WITH 5V TOLERANT INPUTS
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

74LVX157 Datasheet(HTML) 1 Page - STMicroelectronics

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July 2001
s
HIGH SPEED :
tPD = 5.1 ns (TYP.) at VCC = 3.3V
s
5V TOLERANT INPUTS
s
INPUT VOLTAGE LEVEL :
VIL=0.8V, VIH=2V at VCC=3V
s
LOW POWER DISSIPATION:
ICC = 2 µA (MAX.) at TA=25°C
s
LOW NOISE:
VOLP = 0.3V (TYP.) at VCC = 3.3V
s
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 4mA (MIN)
s
BALANCED PROPAGATION DELAYS:
tPLH tPHL
s
OPERATING VOLTAGE RANGE:
VCC(OPR) = 2V to 3.6V (1.2V Data Retention)
s
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 157
s
IMPROVED LATCH-UP IMMUNITY
s
POWER DOWN PROTECTION ON INPUTS
DESCRIPTION
The 74LVX157 is a low voltage CMOS QUAD 2
CHANNEL
MULTIPLEXER
fabricated
with
sub-micron silicon gate and double-layer metal
wiring C2MOS technology. It is ideal for low
power, battery operated and low noise 3.3V
applications.
It consists of four 2-input digital multiplexers with
common select and strobe inputs. When STROBE
input is held high, selection of data is inhibited and
all the outputs become
low. The
SELECT
decoding determines whether the A or B inputs
get routed to their corresponding Y outputs.
Power down protection is provided on all inputs
and 0 to 7V can be accepted on inputs with no
regard to the supply voltage.
This device can be used to interface 5V to 3V
system. It combines high speed performance with
the true CMOS low power consumption.
All
inputs
and
outputs
are
equipped
with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
74LVX157
LOW VOLTAGE QUAD 2 CHANNEL MULTIPLEXER
WITH 5V TOLERANT INPUTS
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE
TUBE
T & R
SOP
74LVX157M
74LVX157MTR
TSSOP
74LVX157TTR
TSSOP
SOP


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