RFM12B Hope RF, RFM12B Datasheet - Page 2

• Manufacturer Part Number: RFM12B
• Description: Universal ISM Band FSK Transceiver Module
• Manufacturer: Hope RF

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Typical Application：
• Remote control
• Remote sensor
• Wireless data collection
• Home security system
• Toys
• Tire pressure monitoring system
Pin Definition：
definition
nINT/VDI
VDD
SDI
SCK
nSEL
SDO
nIRQ
FSK/DATA/nFFS
DCLK/CFIL/FFIT
CLK
nRES
GND
Electrical Parameter：
Maximum（not at working mode）
symbol
V
V
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dd
in
parameter
Positive power supply
All pin input level
SMD
Type
DI/ DO
S
DI
DI
DI
DO
DO
DI/DO/DI
DO/AIO/DO
DO
DIO
S
Interrupt input (active low)/Valid data indicator
Serial data output with bus hold
Clock output (no FIFO )/ external filter capacitor(analog mode)/ FIFO
Power ground
Function
Positive power supply
SPI data input
SPI clock input
Chip select (active low)
Interrupts request output（active low）
Transmit FSK data input/ Received data output (FIFO not used)/ FIFO
select
interrupts(active high)when FIFO level set to 1, FIFO empty
interruption can be achieved
Clock output for external microcontroller
Reset output（active low）
minimum
-0.5
-0.5
DIP
maximum
6.0
Vdd+0.5
Datasheet REV1.2
RFM12B
Unit
V
V