54LVX3245 Datasheet, PDF (1/8 Pages) National Semiconductor (TI) – 8-Bit Dual Supply Translating Transceiver with TRI-STATE Outputs

January 1999
54LVX3245
8-Bit Dual Supply Translating Transceiver with
TRI-STATE^® Outputs
General Description
The LVX3245 is a dual-supply, 8-bit translating transceiver
that is designed to interface between a 3V bus and a 5V bus
in a mixed 3V/5V supply environment. The Transmit/Receive
(T/R) input determines the direction of data flow. Transmit
(active-HIGH) enables data from A ports to B ports; Receive
(active-LOW) enables data from B ports to A ports. The Out-
put Enable input, when HIGH, disables both A and B ports by
placing them in a TRI-STATE condition. The A port interfaces
with the 3V bus; the B port interfaces with the 5V bus.
The LVX3245 is suitable for mixed voltage applications such
as systems using 3.3V memories which must interface with
existing busses or other components operating at 5.0V.
Features
n Bidirectional interface between 3V and 5V buses
n Inputs compatible with TTL level
n 3V data flow at A port and 5V data flow at B port
n Outputs source/sink 24 mA
n Available in ceramic DIP and Flatpack packages
n Implements proprietary EMI reduction circuitry
n Functionally compatible with the 54 series 245
n Standard Microcircuit Drawing (SMD) 5962-9860501
Ordering Code
Order Number
54LVX3245J-QML
54LVX3245W-QML
Package Number
J24F
W24C
Package Description
24-Lead Ceramic Dual-in-line
24-Lead Cerpack
Logic Symbol
Connection Diagram
Pin Assignment
for CDIP and Cerpack
DS101018-1
TRI-STATE^® is a registered trademark of National Semiconductor Corporation.
© 1999 National Semiconductor Corporation DS101018
DS101018-2
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