SI4431-A0-FM Silicon Laboratories Inc, SI4431-A0-FM Datasheet - Page 98

• Manufacturer Part Number: SI4431-A0-FM
• Description: IC TXRX ISM 930MHZ 3.6V 20-QFN
• Manufacturer: Silicon Laboratories Inc

Specifications of SI4431-A0-FM

• Package / Case: 20-QFN
• Mfg Application Notes: Transitioning SI4430/31 to Rev B
• Frequency: 240MHz ~ 930MHz
• Data Rate - Maximum: 128kbps
• Modulation Or Protocol: FSK, GFSK, OOK
• Power - Output: 13dBm
• Sensitivity: -118dBm
• Voltage - Supply: 1.8 V ~ 3.6 V
• Current - Receiving: 18.5mA
• Current - Transmitting: 28mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Number Of Receivers: 2
• Number Of Transmitters: 1
• Wireless Frequency: 240 MHz to 930 MHz
• Output Power: 13 dBm
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Maximum Supply Current: 28 mA
• Minimum Operating Temperature: - 40 C
• Modulation: FSK, GFSK, OOK
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Applications: -
• Memory Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 336-1633-5

Register 0Eh. I/O Port Configuration
Si4431
Reset value = 00000000
98
Name
Type
Bit
Bit
7
6
5
4
3
2
1
0
Reserved
Reserved
extitst[2]
extitst[1]
extitst[0]
Name
itsdo
dio2
dio1
dio0
D7
R
Reserved.
External Interrupt Status.
If the GPIO2 is programmed to be external interrupt sources then the status can be read
here.
External Interrupt Status.
If the GPIO1 is programmed to be external interrupt sources then the status can be read
here.
External Interrupt Status.
If the GPIO0 is programmed to be external interrupt sources then the status can be read
here.
Interrupt Request Output on the SDO Pin.
nIRQ output is present on the SDO pin if this bit is set and the nSEL input is inactive (high).
Direct I/O for GPIO2.
If the GPIO2 is configured to be a direct output then the value on the GPIO pin can be set
here. If the GPIO2 is configured to be a direct input then the value of the pin can be read
here.
Direct I/O for GPIO1.
If the GPIO1 is configured to be a direct output then the value on the GPIO pin can be set
here. If the GPIO1 is configured to be a direct input then the value of the pin can be read
here.
Direct I/O for GPIO0.
If the GPIO0 is configured to be a direct output then the value on the GPIO pin can be set
here. If the GPIO0 is configured to be a direct input then the value of the pin can be read
here.
extitst[2]
D6
R
extitst[1]
D5
R
Preliminary Rev. 0.4
extitst[0]
D4
R
Function
itsdo
R/W
D3
dio2
R/W
D2
dio1
R/W
D1
dio0
R/W
D0