RFM01 Datasheet, PDF (4/31 Pages) List of Unclassifed Manufacturers – Universal ISM Band FSK Receiver

PACKAGE PIN DEFINITIONS, MICROCONTROLLER MODE
Pin type key: D=digital, A=analog, S=supply, I=input, O=output, IO=input/output
Microcontroller Mode Pin Assignment
SMD
DIP
RFM01
Pin
Name
Type Function
1
SDI
DI
Data input of serial control interface
2
SCK
DI
Clock input of serial control interface
3
nSEL
DI
Chip select input of three-wire control interface (active low)
4
FFIT/SDO
DO
FIFO IT (active low) or serial data out for Status Read Command.
Tristate with bushold cell if nSEL=H
5
nIRQ
DO
Interrupt request output, (active low)
6
DATA
DO
Received data output (FIFO not used)
nFFS
DI
FIFO select input (active low)
DCLK
DO
Received data clock output
(Digital filter used, FIFO not used)
7
CFIL
AIO
External data filter capacitor connection (Analog filter used)
FFIT
DO
FIFO IT (active high)
FIFO empty function can be achieved when FIFO IT level is set to one
8
CLK
DO
Clock output for the microcontroller
9
XTL/REF
AIO
Crystal connection (other terminal of crystal to VSS) / External reference
input
10
nRES
DO
Reset output (active low)
11
VSS
S
Negative supply voltage
12
IN2
AI
RF differential signal input
13
IN1
AI
RF differential signal input
14
VDD
S
Positive supply voltage
15
ARSSI
AO
Analog RSSI output
16
VDI
DO
Valid Data Indicator output
4