User Manual
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4
Component description
This section describes the devices on the board.
4.1
S2-LP Radio
The X-NUCLEO-S2915A1 expansion board is based on the S2-LP
standalone RF transceiver. It operates in the 915 MHz ISM frequency band
and wireless M-Bus.
Table 7. S2-LP details
Features
Description
Order code
S2-LPQTR
Package
QFN24 4x4x1
Operating voltage
1.8 to 3.6 V
S2-LP narrow band ultra-low power sub-1 GHz transceiver is tuned for
902~928 MHz, frequency bands
4.2
SPI EEPROM
The M95640-R is a 64 Kbit serial SPI bus EEPROM with high-speed clock
interface. The device can be used to store the configuration parameters
related to application or settings of the S2-LP RF device.
The part numbers used to develop this application are shown in
Table 8
.
Table 8. SPI EEPROM details
Features
Description
Order code
M95640-RMC6TG
Package
MLP8
Operating voltage
1.8 to 5.5 V
To use the on-board SPI EEPROM, mount the R22 resistor on the board.
