RFM12BP Datasheet, PDF (2/8 Pages) List of Unclassifed Manufacturers – UNIVERSAL ISM BAND FSK TRANSCEIVER MODULE

Typical Application：
• Remote control
• Remote sensor
Pin Definition：
RFM12BP
Datasheet REV2.3
• Wireless data collection
• Home security system
• Toys
PIN number definition
Type
Function
1
GND
S
ground
2
GND
S
ground
3
VCC-PA
S
Positive power supply for power amplifier (12V)
4
GND
S
ground
5
SDI
DI
SPI data input
6
SCK
DI
SPI clock input
7
nSEL
DI
Chip select (active low)
8
SDO
DO
Serial data output with bus hold
9
nIRQ
DO
Interrupts request output（active low）
10
FSK/DATA/n DI/DO/DI Transmit FSK data input/ Received data output (FIFO
FFS
not used)/ FIFO select
11
DCLK/CFIL/F DO/AIO/DO Clock output (no FIFO )/ external filter capacitor(analog
FIT
mode)/ FIFO interrupts(active high)when FIFO level set
to 1, FIFO empty interruption can be achieved
12
CLK
DO
Clock output for external microcontroller
13
nRES
DIO
Reset output（active low）
14
GND
S
ground
15
nINT/VDI
DI/ DO
Interrupt input (active low)/Valid data indicator
16
GND
S
ground
17
VDD
S
Positive power supply for FSK IC(2.2V-3.8V)
18
GND
S
ground
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