WENSHING®©
TRW-4432-433
RF MODULE
433MHz ISM Transceiver Module
Version History
Version
V1.00
V1.00
Date
September 26, 2013
November 19, 2013
Changes
1
st.
Edition
1
st.
Edition
http://www.wenshing.com.tw ; http://www.rf.net.tw
TRW-4432-433 Datasheet P.1
Key Features
• Worldwide 433 ISM band operation
•0.123 to 256KBPs on air datarates
• Ultra low power operation
•Output power range +20 dBm Max
•18.5 mA receive, 85 mA @ +20 dBm transmit
•Digital RSSI
• FSK, GFSK, and OOK modulation
• Low cost
• 1.8 to 3.6V supply range
•Temperature sensor and 8-bit ADC
• Automatic packet handling
• Auto packet transaction handling
• TX and RX 64 byte FIFOs
• On-chip crystal tuning
Applications
• Wireless PC Peripherals
•Sensor networks
• Toys
• Sports watches and sensors
• Home and commercial automation
• Active RFID
• Home security & alarm
• Advanced Media center remote controls
• Game controllers
• RF remote controls for consumer electronics
• Ultra low power sensor networks
• Asset tracking systems
Product Description
TRW-4432-433 is a fully-integrated and high-power wireless radio module. With
high-performance transceivers, it can reach its maximum efficiency at very low power
consumption.
This module is mainly used in the ISM (Industrial, Scientific and Medical) and SRD (Short
Range Device). It works at frequency band 420MHz~450MHz, with a built-in PA, and an
output up to +19dBm. May flexibly adjust the power by an SPI interface. In order to keep
abreast of the module in the operating temperature range, you can not only control the output
and receive data but also read the RF IC's temperature through the SPI control interface.
Pin Assignments
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TRW-4432-433 Datasheet P.2
Pin Function
Pin
1
2
3
4
5
6
7
Name
I/O
Antenna
Ground
Controlled antenna switch, IF Receiver MODE IS
High Voltage
Controlled antenna switch, IF Transmitter MODE IS
High Voltage
+1.8V to +3.6 V Supply Voltage Input to Internal
Regulators
General Purpose Digital I/O that may be configured
through the registers to perform various functions
including: Microcontroller Clock Output, FIFO status,
POR, Wake-Up timer, Low Battery Detect, TRSW,
AntDiversity control, etc. See the SPI GPIO
Configuration Registers, Address 0Bh, 0Ch, and 0Dh
for
more information.
ground.
Provides a serial read back function of the internal
control registers.
This pin provides the serial data stream for the 4-line
Serial Clock Input.
digital input. This pin provides the serial data clock
function for the
4-line serial data bus. Data is clocked into the RF
CHIP on positive edge transitions
Serial Interface Select input. 0– VDD V digital input.
This pin provides the Select/Enable function for the
4-
line serial data bus. The signal is also used to signify
burst read/write mode
General Microcontroller Interrupt Status output.
When the Si4430/31/32 exhibits anyone of the
TRW-4432-433 Datasheet P.3
Description
Antenna Input/output
GND
GND
ANT RX Input
ANT TX
VCC
GPIO0
GPIO1
Input
Input
Digital I/O
Digital I/O
8
GPIO2
Digital I/O
9
10
11
GND
SDO
SDI
GND
Digital Output
Digital Input
12
SCLK
Digital Input
13
nSEL
Digital Input
14
NIRQ
Digital Output
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Interrupt
Events the nIRQ pin will be set low=0. Please see the
Control Logic registers section for more information
on the Interrupt Events. The Microcontroller can then
determine the state of the interrupt by reading a
corresponding
SPI Interrupt Status Registers, Address 03h and 04h.
No external resistor pull-up is required,
but it may be desirable if multiple interrupt lines are
connected
Shutdown input pin. 0–VDD V digital input. SDN
should be = 0 in all modes except Shutdown mode.
When
SDN =1 the chip will be completely shut down and
the contents of the registers will be lost.
Ground
15
SDN
Digital Input
16
GND
GND
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TRW-4432-433 Datasheet P.4
1 Hardware Specification
1.1 Specification
Conditions: VDD =VCC= 3V, VSS = 0V, TA = 25ºC
Parameter
Supply Voltage
Range
Power Down
RX Mode
Current
TX Mode
Current
RX Sensitivity
Symbol
Test Condition
Min
Type
Max
Unit
Power
1.8
3
3.6V
V
Power
Power Down
15
nA
Receiver
1KBPS
18.5
mA
Transmitter
20dBm
85
mA
Receiver
512bps 433MHz
-121dBm
dBm
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TRW-4432-433 Datasheet P.5
stm32/stm8
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