74LCX2245 Datasheet, PDF (1/2 Pages) National Semiconductor (TI) – Low-Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs

ADVANCE INFORMATION
November 1996
74LCX2245
Low-Voltage Bidirectional Transceiver
with 5V Tolerant Inputs and Outputs
General Description
The LCX2245 contains eight non-inverting bidirectional buff-
ers with TRI-STATE outputs and is intended for bus orient-
ed 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 25X-series resistor helps reducing output over-
shoot and undershoot
The LCX2245 is fabricated with an advanced CMOS tech-
nology to achieve high speed operation while maintaining
CMOS low power dissipation
Features
Y _{5V tolerant inputs and outputs}
Y _{10 mA ICCQ max}
Y _{Power down high impedance inputs and outputs}
Y _{25X-series resistor on outputs}
Y _{Supports live insertion withdrawal}
Y _{2 0V – 3 6V VCC supply operation}
Y g_{12 mA output drive}
Y _{Implements patented Quiet Series}TM _{noise EMI}
reduction circuitry
Y _{Functionally compatible with the 74 series 245}
Y _{Latch-up performance exceeds 500 mA}
Y _{ESD performance}
Human body model ^l 2000V
Machine model ^l 200V
Logic Symbols
IEEE IEC
Connection Diagram
Pin Assignment
for SOIC SSOP and TSSOP
TL F 12573–1
Pin Names
OE
TR
A₀ – A₇
B₀ – B₇
TL F 12573 – 2
Description
Output Enable Input
Transmit Receive Input
Side A Inputs or TRI-STATE Outputs
Side B Inputs or TRI-STATE Outputs
TL F 12573 – 3
TRI-STATE is a registered trademark of National Semiconductor Corporation
Quiet SeriesTM is a trademark of National Semiconductor Corporation
C1996 National Semiconductor Corporation TL F 12573
RRD-B30M17 Printed in U S A
http www national com