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March 2013 Doc ID 024405 Rev 1 1/4
4
ANT3-M24LR04E
SMD-inductor based antenna reference board
for the M24LR04E-R Dual interface EEPROM
Data brief
Features
■ Ready-to-use printed circuit board (PCB)
including
– 4.7 µH SMD inductor acting as an RF
antenna
– M24LR04E-R Dual Interface EEPROM
–I
2
C connector
– RF WIP/BUSY output with 20 k
Ω pull-up
resistor, to indicate that an RF operation is
ongoing
Description
The ANT3-M24LR04E antenna reference board is
a ready-to-use PCB that features an M24LR04E-
R Dual Interface EEPROM IC connected to a
4.7 µH SMD inductor acting as an RF antenna on
one side, and to an I
2
C bus on the other side.
The ANT3-M24LR04E antenna allows system
designers to evaluate the M24LR04E-R
performance and capabilities, and to get started
with their design.
The ANT3-M24LR04E Gerber files can be
downloaded from http://www.st.com.
Figure 1. Block diagram
MS30771V1
M24LR04E-R
RF WIP/BUSY
VCC
RF WIP/BUSY
SCL
SDA
VOUT
AC0
AC1
GND
VCC
VOUT
Filtering
circuit
I2C bus
20 kΩ
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