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74LVX238 Fiches technique(PDF) 1 Page - STMicroelectronics

No de pièce 74LVX238
Description  LOW VOLTAGE CMOS 3 TO 8 LINE DECODER WITH 5V TOLERANT INPUTS
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

74LVX238 Fiches technique(HTML) 1 Page - STMicroelectronics

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August 2004
s
HIGH SPEED:
tPD = 5.5ns (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 138
s
IMPROVED LATCH-UP IMMUNITY
s
POWER DOWN PROTECTION ON INPUTS
DESCRIPTION
The 74LVX238 is a low voltage CMOS 3 TO 8
LINE
DECODER
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.
If the device is enabled, 3 binary select (A, B, and
C) determine which one of the outputs will go high.
If enable input G1 is held low or either G2A or G2B
is held high, the decoding function is inhibited and
all the 8 outputs go low.
Tree enable inputs are provided to ease cascade
connection and application of address decoders
for memory systems.
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.
74LVX238
LOW VOLTAGE CMOS 3 TO 8 LINE DECODER
WITH 5V TOLERANT INPUTS
Figure 1: Pin Connection And IEC Logic Symbols
Table 1: Order Codes
PACKAGE
T & R
SOP
74LVX238MTR
TSSOP
74LVX238TTR
TSSOP
SOP
Rev. 2


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