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FXL4TD245

Low Voltage Dual Supply 4-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels and 3-STATE Outputs and Independent Direction Controls

Fairchild Semiconductor 

April 2007

FXL4TD245

tm

Low Voltage Dual Supply 4-Bit Signal Translator with

Configurable Voltage Supplies and Signal Levels and 3-STATE

Outputs and Independent Direction Controls

Features

■ Bi-directional interface between any 2 levels

from 1.1V to 3.6V

■ Fully configurable: Inputs track VCC level

■ Non-preferential power-up sequencing;

either VCC may be powered-up first

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

reached

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

■ Power-off protection

■ Control inputs (T/Rn, OE) levels are referenced to

VCCA voltage

■ Packaged in 16-Terminal DQFN (2.5mm x 3.5mm)

■ ESD protections 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)

General Description

The FXL4TD245 is a configurable 4-bit dual-voltage-

supply translator designed for both uni-directional and

bi-directional voltage translation between two logic lev-

els. 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. 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.

Internal power down control circuits place the device in

3-STATE if either VCC is removed.

The Transmit/Receive (T/R) inputs independently deter-

mine the direction of data through each of the four bits.

The OE input, when HIGH, disables both the A and B

Ports by placing them in a 3-STATE condition. The

FXL4TD245 is designed so that the control pins (T/R and

OE) are supplied by VCCA.

Ordering Information

Order Number Package Number

FXL4TD245BQX

MLP016E

Pb-Free package per JEDEC J-STD-020B.

Pb-Free

Yes

Package Description

16-Terminal Depopulated Quad Very-Thin Flat Pack,

No Leads (DQFN), JEDEC MO-241, 2.5mm x 3.5mm

©2006 Fairchild Semiconductor Corporation

FXL4TD245 Rev. 1.0.4

www.fairchildsemi.com

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