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54LVXC3245W-QML Datasheet

  • 54LVXC3245W-QML

  • 8-Bit Dual Supply Configurable Voltage Interface

  • 10頁

  • NSC

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54LVXC3245 8-Bit Dual Supply Configurable Voltage Interface Transceiver with TRI-STATE
廬
Outputs
February 1999
54LVXC3245
8-Bit Dual Supply Configurable Voltage Interface
Transceiver with TRI-STATE
廬
Outputs
General Description
The LVXC3245 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 3V supply level.
The A port is a dedicated 3V port. The V
CCB
pin accepts a
3V-to-5V supply level. The B 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 B port to float when
OE is HIGH. This feature is necessary to buffer data to and
from sockets that require live insertion and removal during
normal operation.
Features
Bidirectional interface between 3V and 3V-to-5V buses
Control inputs compatible with TTL level
Outputs source/sink up to 24 mA
Available in Cerpack and CDIP package
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) 5962-9861901
n
n
n
n
n
n
n
Ordering Code
Order Number
54LVXC3245W-QML
54LVXC3245J-QML
Package Number
W24A
J24F
Package Description
24-Lead (0.300" Wide) Ceramic Flatpack
24-Lead Ceramic Dual-in-line
Logic Symbol
Connection Diagram
Pin Assignment for
CDIP and Cerpack
DS101032-1
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 3-STATE Outputs
Side B Inputs or 3-STATE Outputs
DS101032-2
TRI-STATE
廬
is a registered trademark of National Semiconductor Corporation
漏 1999 National Semiconductor Corporation
DS101032
www.national.com

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