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74LVXC3245 Scheda tecnica(PDF) 1 Page - STMicroelectronics

Il numero della parte 74LVXC3245
Spiegazioni elettronici  OCTAL DUAL SUPPLY BUS TRANSCEIVER
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

74LVXC3245 Scheda tecnica(HTML) 1 Page - STMicroelectronics

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August 2004
s
HIGH SPEED:
tPD = 8ns (MAX.) at TA=25°C
VCCA = 3.3V, VCCB = 5.0V
s
LOW POWER DISSIPATION:
ICCA = ICCB = 5µA(MAX.) at TA=25°C
s
LOW NOISE: VOLP =0.3V (TYP.) at
VCCA=3.3V
s
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 24mA (MIN)
s
BALANCED PROPAGATION DELAYS:
tPLH tPHL
s
OPERATING VOLTAGE RANGE:
VCCA(OPR)= 2.7Vto 3.6V(1.2VData Retention)
VCCB(OPR)= 2.7Vto 5.5V(1.2VData Retention)
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES C3245
s
IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The
74LVXC3245
is
a
dual
supply
8
bit
configurable low voltage CMOS OCTAL BUS
TRANSCEIVER fabricated with sub-micron silicon
gate and double-layer metal wiring C2MOS
technology. Designed for use as an interface
between a 3.3V bus and a 3.3V to 5V bus in a
mixed 3.3V/5V supply systems, it achieves high
speed operation while maintaining the CMOS low
power dissipation.
This IC is intended for two-way asynchronous
communication between data buses and the
direction of data transmission is determined by
DIR input. The enable input G can be used to
disable the device so that the buses are effectively
isolated.
The A-port interfaces with the 3V bus, the B-port
with the 5V bus.
All inputs are equipped with protection circuits
against static discharge, giving them 2KV ESD
immunity and transient excess voltage.
74LVXC3245
OCTAL DUAL SUPPLY BUS TRANSCEIVER
Figure 1: Pin Connection And IEC Logic Symbols
Table 1: Order Codes
PACKAGE
T & R
SOP
74LVXC3245MTR
TSSOP
74LVXC3245TTR
TSSOP
SOP
Rev. 4


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