FXMAR2102 Datasheet, PDF (1/16 Pages) Fairchild Semiconductor – Dual-Supply, 2-Bit Voltage Translator / Isolator for I2C Applications

October 2011
FXMAR2102
Dual-Supply, 2-Bit Voltage Translator / Isolator for
I²C Applications
Features
 Bi-Directional Interface between Any Two Levels:
1.65V to 5.5V
 No Direction Control Needed
 Internal 10K Pull-Up Resistors
 System GPIO Resources Not Required when OE
Tied to V_CCA
 I²C-Bus^® Isolation
 A/B Port V_OL = 175mV (Typical), V_IL = 150mV,
I_OL = 6mA
 Open-Drain Inputs / Outputs
 Works in Push Pull Environment
 Accommodates Standard-Mode and Fast-Mode
I²C-Bus Devices
 Supports I²C Clock Stretching & Multi-Master
 Fully Configurable: Inputs and Outputs Track V_CC
 Non-Preferential Power-Up; Either V_CC Can
Power-Up First
 Outputs Switch to 3-State if Either V_CC is at GND
 Tolerant Output Enable: 5V
 Packaged in 8-Terminal Leadless MicroPak™
(1.6mm x 1.6mm) and Ultrathin MLP
(1.2mm x 1.4mm)
 ESD Protection Exceeds:
- B Port: 8kV HBM ESD (vs. GND & vs. V_CCB)
- All Pins: 4kV HBM ESD (per JESD22-A114)
- 2kV CDM (per JESD22-C101)
Description
The FXMAR2102 is a high-performance configurable
dual-voltage-supply translator for bi-directional voltage
translation over a wide range of input and output
voltages levels. The FXMAR2102 also works in a push-
pull environment.
It is intended for use as a voltage translator between
I²C-Bus^® compliant masters and slaves. Internal 10KΩ
pull-up resistors are provided.
The device is designed so the A port tracks the V_CCA
level and the B port tracks the V_CCB level. This allows for
bi-directional A/B-port voltage translation between any
two levels from 1.65V to 5.5V. V_CCA can equal V_CCB from
1.65V to 5.5V. Either V_CC can be powered-up first.
Internal power-down control circuits place the device in
3-state if either V_CC is removed.
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.
Ordering Information
Part Number
FXMAR2102L8X
FXMAR2102UMX
Operating
Temperature Range
-40 to +85°C
Top
Mark
BU
Package
8-Lead MicroPak™, 1.6mm Wide
8-Lead Ultrathin MLP, 1.2mm x 1.4mm
Packing
Method
5000 Units on
Tape and Reel
© 2010 Fairchild Semiconductor Corporation
FXMAR2102 • Rev. 0.0.7
www.fairchildsemi.com