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54LVXC4245W-QML Datasheet

  • 54LVXC4245W-QML

  • 8-Bit Dual Supply Configurable Voltage Interface Transceiver...

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  • NSC

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54LVXC4245 8-Bit Dual Supply Configurable Voltage Interface Transceiver with TRI-STATE
Outputs
March 1999
54LVXC4245
8-Bit Dual Supply Configurable Voltage Interface
Transceiver with TRI-STATE
廬
Outputs
General Description
The LVXC4245 is a 24-pin dual-supply, 8-bit configurable
voltage interface transceiver suited for real time configurable
I/O applications. The V
CCA
pin accepts a 5V supply level.
The 鈥淎鈥?port is a dedicated 5V port. The V
CCB
pin accepts a
3V-to-5V supply level. The 鈥淏鈥?port is configured to track the
V
CCB
supply level respectively. A 5V level on the V
CC
pin will
configure the I/O pins at a 5V level and a 3V V
CC
will config-
ure the I/O pins at a 3V level. This device will allow the V
CCB
voltage source pin and I/O pins on the 鈥淏鈥?port to float when
OE is HIGH. This feature is necessary to buffer data to and
from a socket that permits live insertion and removal during
normal operation.
Features
Bidirectional interface between 5V and 3V-to-5V buses
Control inputs compatible with TTL level
Outputs source/sink up to 24 mA
Available in Cerpack and CDIP packages
Implements patented EMI reduction circuitry
Flexible V
CCB
operating range
Allows B port and V
CCB
to float simultaneously when OE
is HIGH
n
Functionally compatible with the 54 series 245
n
Standard Microcircuit Drawing (SMD) 5962-9862001
n
n
n
n
n
n
n
Ordering Code
Order Number
54LVXC4245W-QML
54LVXC4245J-QML
Package Number
W24C
J24F
24-Lead Ceramic Flatpack
24-Lead Ceramic Dual-in-line
Package Description
Logic Symbol
Connection Diagram
Pin Assignment
for Cerpack and CDIP
DS101033-1
Pin Descriptions
Pin Names
OE
T/R
A
0
鈥揂
7
B
0
鈥揃
7
Description
Output Enable Input
Transmit/Receive Input
Side A Inputs or TRI-STATE Outputs
Side B Inputs or TRI-STATE Outputs
DS101033-2
TRI-STATE
廬
is a registered trademark of National Semiconductor Corporation
漏 1999 National Semiconductor Corporation
DS101033
www.national.com

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