FXLA104_12 Datasheet, PDF (1/18 Pages) Fairchild Semiconductor – Low-Voltage Dual-Supply 4-Bit Voltage Translator with Configurable Voltage Supplies and Signal Levels, 3-State Outputs, and Auto Direction Sensing

July 2012
FXLA104
Low-Voltage Dual-Supply 4-Bit Voltage Translator with
Configurable Voltage Supplies and Signal Levels,
3-State Outputs, and Auto Direction Sensing
Features
 Bi-Directional Interface between Two Levels:
from 1.1V to 3.6V
 Fully Configurable: Inputs and Outputs Track V_CC
 Non-Preferential Power-Up; Either V_CC May Be
Powered Up First
 Outputs Switch to 3-State if Either V_CC is at GND
 Power-Off Protection
 Bus-Hold on Data Inputs Eliminates the Need for
Pull-Up Resistors; Do Not Use Pull-Up Resistors on
A or B Ports
 Control Input (/OE) Referenced to V_CCA Voltage
 Available in 16-Terminal UMLP (1.8mm x 2.6mm)
and 12-Terminal, Quad UMLP, 1.8 x 1.8mm
Packages
 Direction Control Not Necessary
 100Mbps Throughput when Translating Between
1.8V and 2.5V
 ESD Protection Exceeds:
- 8kV HBM (per JESD22-A114 & Mil Std 883e
3015.7)
- 2kV CDM (per ESD STM 5.3)
Applications
 Cell Phone, PDA, Digital Camera, Portable GPS
Description
The FXLA104 is a configurable dual-voltage supply
translator for both uni-directional and bi-directional
voltage translation between two logic levels. The device
allows translation between voltages as high as 3.6V to
as low as 1.1V. The A port tracks the V_CCA level and the
B port tracks the V_CCB 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 three-state as long as either
V_CC=0V, allowing either V_CC to be powered up first.
Internal power-down control circuits place the device in
3-state if either V_CC is removed.
The /OE input, when HIGH, disables both the A and B
ports by placing them in a 3-state condition. The /OE
input is supplied by V_CCA.
The FXLA104 supports bi-directional translation without
the need for a direction control pin. The two ports of the
device have auto-direction sense capability. Either port
may sense an input signal and transfer it as an output
signal to the other port.
Ordering Information
Operating
Part Number Temperature Top Mark
Range
Package
FXLA104UMX
FXLA104UM12X
-40 to 85°C
XJ
16-Terminal UMLP 1.8 x 2.6mm Package
XJ
12-Terminal, Quad UMLP, 1.8 x 1.8mm Package
Packing
Method
5K Units Tape
and Reel
© 2009 Fairchild Semiconductor Corporation
FXLA104 • Rev. 1.0.9
www.fairchildsemi.com