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M54HC257 Datasheet(PDF) 1 Page - STMicroelectronics

Part # M54HC257
Description  RAD-HARD QUAD 2 CHANNEL MULTIPLEXER (3-STATE)
PDF  10 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M54HC257 Datasheet(HTML) 1 Page - STMicroelectronics

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April 2004
s
HIGH SPEED:
tPD =11ns (TYP.) at VCC =6V
s
LOW POWER DISSIPATION:
ICC =4µA(MAX.) at TA =25°C
s
HIGH NOISE IMMUNITY:
VNIH =VNIL = 28% VCC (MIN.)
s
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH|= IOL =6mA (MIN)
s
BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
s
WIDE OPERATING VOLTAGE RANGE:
VCC (OPR) = 2V to 6V
s
PIN AND FUNCTION COMPATIBLE WITH
54 SERIES 257
s
SPACE GRADE-1: ESA SCC QUALIFIED
s
50 krad QUALIFIED, 100 krad AVAILABLE ON
REQUEST
s
NO SEL UNDER HIGH LET HEAVY IONS
IRRADIATION
s
DEVICE FULLY COMPLIANT WITH
SCC-9408-047
DESCRIPTION
The M54HC257 is an high speed CMOS QUAD 2
CHANNEL MULTIPLEXER (3-STATE) fabricated
with silicon gate C2MOS technology.
This IC is composed of an independent 2-channel
multiplexer with common SELECT and ENABLE
(OE) input.
The M74HC257 is a non-inverting multiplexer.
When the ENABLE input is held "High", outputs of
the IC become in a High-Impedance state. If
SELECT input is held low, "A" data is selected,
when SELECT is high, "B" data is chosen.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
M54HC257
RAD-HARD QUAD 2 CHANNEL MULTIPLEXER (3-STATE)
PIN CONNECTION
ORDER CODES
PACKAGE
FM
EM
DILC
M54HC257D
M54HC257D1
FPC
M54HC257K
M54HC257K1
DILC-16
FPC-16


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