74LCXH32245 Datasheet, PDF(1/8 Page) Fairchild Semiconductor – Low Voltage 32-Bit Bidirectional Transceiver with 5V Tolerant Inputs and Outputs with Bushold

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74LCXH32245 Datasheet, PDF (1/8 Pages) Fairchild Semiconductor – Low Voltage 32-Bit Bidirectional Transceiver with 5V Tolerant Inputs and Outputs with Bushold

April 2002

Revised August 2003

74LCXH32245

Low Voltage 32-Bit Bidirectional Transceiver

with 5V Tolerant Inputs and Outputs with Bushold

General Description

The LCXH32245 contains thirty-two non-inverting bidirec-

tional buffers with 3-STATE outputs and is intended for bus

oriented applications. The device is designed for low volt-

age (2.5V or 3.3V) VCC applications with capability of inter-

facing to a 5V signal environment. The device is byte

controlled. Each byte has separate control inputs which

could be shorted together for full 32-bit operation. The T/R

inputs determine the direction of data flow through the

device. The OE inputs disable both the A and B ports by

placing them in a high impedance state.

The LCXH32245 data inputs include bushold, eliminating

the need for external pull-up/down resistors to hold unused

inputs.

The LCXH32245 is fabricated with an advanced CMOS

technology to achieve high speed operation while maintain-

ing CMOS low power dissipation.

Features

s 5V tolerant inputs and outputs

s 2.3V to 3.6V VCC specifications provided

s 4.5 ns tPD max (VCC = 3.3V), 20 ÂµA ICC max

s Power-off high impedance inputs and outputs

s Bushold on inputs eliminates the need for external

pull-up/down resistors

s Supports live insertion/withdrawal (Note 1)

s Â±24 mA output drive (VCC = 3.0V)

s Uses patented noise/EMI reduction circuitry

s Latch-up performance exceeds 500 mA

s ESD performance:

Human body model > 2000V

Machine model > 200V

s Packaged in plastic Fine-Pitch Ball Grid Array (FBGA)

Note 1: To ensure the high-impedance state during power-up or down, OE

should be tied to VCC through a pull-up resistor: the minimum value or the

resistor is determined by the current-sourcing capability of the driver.

Ordering Code:

Order Number Package Number

Package Description

74LCXH32245G

(Note 2) (Note 3)

BGA96A

96-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide

Note 2: Ordering Code âGâ indicates Trays.

Note 3: Devices also available in Tape and Reel. Specify by appending the suffix letter âXâ to the ordering code.

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