July 2012
FXMA2104
Dual-Supply, 4-Bit Voltage Translator / Buffer /
Repeater / Isolator for Open-Drain Applications
Features
Description
The FXMA2104 is
a
4-bit high-performance,
.
Bi-Directional Interface between Any Two Levels:
1.65V to 5.5V
configurable dual-voltage supply, open-drain translator
for bi-directional voltage translation over a wide range of
input and output voltages levels.
.
.
Direction Control not Needed
System GPIO Resources Not Required when OE
Tied to VCCA
I2C 400pF Buffer / Repeater
I2C-Bus® Isolation
Intended for use as a voltage translator in applications
using the I2C-Bus® interface, the input and output
voltage levels are compatible with I2C device
specification voltage levels. External pull-up resistors
are required.
.
.
.
A/B Port VOL = 175mV (Typical), VIL = 150mV,
IOL = 6mA
The device is designed so that the A port tracks the
VCCA level and the B port tracks the VCCB level. This
allows for bi-directional A/B port voltage translation
between any two levels from 1.65V to 5.5V. VCCA can
equal VCCB from 1.65V to 5.5V.
.
.
Open-Drain Inputs / Outputs
Accommodates Standard-Mode and Fast-Mode
I2C-Bus Devices
Non-preferential power-up means either VCC can be
powered-up first. Internal power-down control circuits
place the device in 3-state if either VCC is removed.
.
.
.
Supports I2C Clock Stretching & Multi-Master
Fully Configurable: Inputs and Outputs Track VCC
The two ports of the device have automatic direction-
sense capability. Either port may sense an input signal
and transfer it as an output signal to the other port.
Non-Preferential Power-Up; Either VCC May Be
Powered-Up First
.
.
.
Outputs Switch to 3-State if Either VCC is at GND
Tolerant Output Enable: 5V
Packaged in 12-Lead Ultrathin MLP
(1.8mm x 1.8mm)
.
ESD Protection Exceeds:
- 5kV HBM ESD (per JESD22-A114)
- 2kV CDM (per JESD22-C101)
Ordering Information
Operating
Temperature
Range
Top
Mark
Packing
Part Number
Package
Method
5000 Units on
Tape and Reel
FXMA2104UMX
-40 to +85°C
BX
12-Lead, Ultrathin, MLP, 1.8mm x 1.8mm
© 2011 Fairchild Semiconductor Corporation
FXMA2104 • Rev. 1.0.1
www.fairchildsemi.com