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FXL4245
(Rev.:2004)

Low Voltage Dual Supply 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels and 3-STATE Outputs

Fairchild Semiconductor 

April 2004

Revised June 2004

FXL4245

Low Voltage Dual Supply 8-Bit Signal Translator

with Configurable Voltage Supplies

and Signal Levels and 3-STATE Outputs

General Description

The FXL4245 is a configurable dual-voltage-supply transla-

tor designed for bi-directional voltage translation of signals

between two voltage levels. The device allows translation

between voltages as high as 3.6V to as low as 1.1V. The A

Port tracks the VCCA level, and the B Port tracks the VCCB

level. Both ports are designed to accept supply voltage lev-

els from 1.1V to 3.6V. This allows for bi-directional voltage

translation over a variety of voltage levels: 1.2V, 1.5V, 1.8V,

2.5V, and 3.3V.

The device remains in 3-STATE until both VCCs reach

active levels allowing either VCC to be powered-up first.

The device also contains power down control circuits that

place the device in 3-STATE if either VCC is removed.

The Transmit/Receive (T/R) input determines the direction

of data flow through the device. The OE input, when HIGH,

disables both the A and B Ports by placing them in a

3-STATE condition. The FXL4245 is designed so that the

control pins (T/R and OE) are supplied by VCCA.

Features

s Bi-directional interface between any 2 levels from

1.1V to 3.6V

s Fully configurable, inputs track VCC level

s Non-preferential power-up sequencing; either VCC may

be powered-up first

s Outputs remain in 3-STATE until active VCC level is

reached

s Outputs switch to 3-STATE if either VCC is at GND

s Power-off protection

s Control inputs (T/R, OE) levels are referenced to VCCA

voltage

s Packaged in 24-terminal MLP

s ESD protection exceeds:

• 4kV HBM ESD

(per JESD22-A114 & Mil Std 883e 3015.7)

• 8kV HBM I/O to GND ESD

(per JESD22-A114 & Mil Std 883e 3015.7)

• 1kV CDM ESD (per ESD STM 5.3)

• 200V MM ESD (per JESD22-A115 & ESD STM5.2)

Ordering Code:

Order Number Package Number

Package Description

FXL4245MPX

MLP024B 24-Terminal Molded Leadless Package (MLP), JEDEC MO-220, 3.5mm x 4.5mm

© 2004 Fairchild Semiconductor Corporation DS500867

www.fairchildsemi.com

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