FXL4245_10 Datasheet, PDF (1/11 Pages) Fairchild Semiconductor – Low-Voltage, Dual-Supply, 8-Bit, Signal Translator with Configurable Voltage Supplies, Signal Levels, and 3-State Outputs

September 2010
FXL4245
Low-Voltage, Dual-Supply, 8-Bit, Signal Translator
with Configurable Voltage Supplies, Signal Levels,
and 3-State Outputs
Features
ƒ Bi-Directional Interface between Two Levels from
1.1V to 3.6V
ƒ Fully Configurable, Inputs Track VCC Level
ƒ Non-Preferential Power-up; Either VCC May Be
Powered-up First
ƒ Outputs Remain in 3-State until Active VCC Level is
Reached
ƒ Outputs Switch to 3-State if Either VCC is at GND
ƒ Power-Off Protection
ƒ Control Inputs (T/R, OE) Levels are Referenced To
VCCA Voltage
ƒ Packaged in 24-Pin MLP
ƒ ESD Protection Exceeds:
- 4kV Human Body Model
(per JESD22-A114 & Mil Std 883e 3015.7)
- 8kV Human Body Model I/O to GND
(per JESD22-A114 & Mil Std 883e 3015.7)
- 1kV Charge Device Model (per ESD STM 5.3)
- 200V Machine Model
(per JESD22-A115 & ESD STM5.2)
Description
The FXL4245 is a configurable dual-voltage-supply
translator 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 levels 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
with the control pins (T/R and OE) supplied by VCCA.
Ordering Information
Part Number
FXL4245MPX
Package
Packing Method
24-Pin Molded Leadless Package (MLP), JEDEC MO-220, 3.5 x 4.5mm Tape and Reel
© 2004 Fairchild Semiconductor Corporation
FXL4245 • Rev. 1.0.3
www.fairchildsemi.com