4
X-NUCLEO-S2868A1 on-board device description
4.1
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
S2-LP
RF device application or settings.
Features
Description
Order code
M95640-RMC6TG
Package
MLP8
Operating voltage
1.8 to 5.5 V
To use the on-board SPI EEPROM, mount R22 resistor on the board.
4.2
S2-LP radio
The
X-NUCLEO-S2868A1
expansion board is based on the
S2-LP
standalone RF transceiver. It operates in the
868 MHz ISM frequency band and wireless M-Bus.
S2-LP narrow band ultra-low power sub-1 GHz transceiver is tuned for 430-470 MHz and 860 - 940 MHz,
frequency bands and programmable RF output power up to +16 dBm.
Table 5.
S2-LP details
Features
Description
Order code
S2-LPQTR
Package
QFN24 4x4x1
Operating voltage
1.8 to 3.6 V
UM2405
X-NUCLEO-S2868A1 on-board device description
UM2405
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Rev 1
page 8/19
