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PDF 54LCX245 Data sheet ( Hoja de datos )
| Número de pieza | 54LCX245 | |
| Descripción | Low Voltage Bidirectional Transceiver | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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www.DataSheet4U.com
December 1998
54LCX245
Low Voltage Bidirectional Transceiver with 5V Tolerant
Inputs and Outputs
General Description
The LCX245 contains eight non-inverting bidirectional buff-
ers with TRI-STATE™ outputs and is intended for bus ori-
ented applications. The device is designed for low voltage
(3.3V) VCC applications with capability of interfacing to a 5V
signal environment. The T/R input determines the direction
of data flow through the device. The OE input disables both
the A and B ports by placing them in a high impedance state.
The LCX245 is fabricated with an advanced CMOS technol-
ogy to achieve high speed operation while maintaining
CMOS low power dissipation.
Features
n 5V tolerant inputs and outputs
n 9ns tPD max, 10µA ICCQ max
n Power down high impedance inputs and outputs
n Supports live insertion/withdrawal
n 2.0V–3.6V VCC supply operation
n ±24 mA output drive
n Implements patented noise/EMI reduction circuitry
n Functionally compatible with the 54 series 245
n ESD performance:
Human body model > 2000V
Machine model > 200V
n Standard Microcircuit Drawing (SMD) 5962-97543
Logic Symbols
Connection Diagram
Pin Assignment
for DIP and Cerpack
DS101022-1
Pin Descriptions
Pin Names
OE
T/R
A0– A7
B0– B7
Description
Output Enable Input
Transmit/Receive Input
Side A Inputs or 3-STATE Outputs
Side B Inputs or 3-STATE Outputs
DS101022-3
Pin Assignment
for LCC
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS101022
DS101022-6
www.national.com
1 page  
Physical Dimensions inches (millimeters) unless otherwise noted
20-Lead Ceramic Dual-in-line
Package Number J20A
20-Lead Cerpack
Package Number W20A
5
www.national.com
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet 54LCX245.PDF ] | |
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