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54LCX245 Datasheet

  • 54LCX245

  • Low Voltage Bidirectional Transceiver with 5V Tolerant Input...

  • 6頁(yè)

  • NSC

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54LCX245 Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs
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
鈩?/div>
outputs and is intended for bus ori-
ented applications. The device is designed for low voltage
(3.3V) V
CC
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
n
n
n
n
n
n
n
n
5V tolerant inputs and outputs
9ns t
PD
max, 10碌A(chǔ) I
CCQ
max
Power down high impedance inputs and outputs
Supports live insertion/withdrawal
2.0V鈥?.6V V
CC
supply operation
鹵
24 mA output drive
Implements patented noise/EMI reduction circuitry
Functionally compatible with the 54 series 245
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
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
DS101022-3
Pin Assignment
for LCC
DS101022-6
TRI-STATE
廬
is a registered trademark of National Semiconductor Corporation.
漏 1998 National Semiconductor Corporation
DS101022
www.national.com

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