SI4020-I1-FT Silicon Laboratories Inc, SI4020-I1-FT Datasheet - Page 20

• Manufacturer Part Number: SI4020-I1-FT
• Description: IC TX FSK 915MHZ 5.4V 16-TSSOP
• Manufacturer: Silicon Laboratories Inc

Specifications of SI4020-I1-FT

• Package / Case: 16-TSSOP
• Frequency: 315MHz, 433MHz, 868MHz, and 915MHz
• Modulation Or Protocol: FSK, OOK
• Data Rate - Maximum: 256 kbps
• Current - Transmitting: 14mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 2.2 V ~ 5.4 V
• Operating Temperature: -40°C ~ 85°C
• Operating Frequency: 315 MHz to 915 MHz
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 2.2 V to 5.4 V
• Supply Current: 1.5 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Power - Output: -
• Applications: -
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1621-5

11. Status Register Read Command
With this command, it is possible to read the chip’s status register through the nIRQ pin. This command clears the last serviced
interrupt and processing the next pending one will start (if there is any).
bit
Status Register Read Sequence
15
1
nSEL
nIRQ
SDI
SCK
14
1
0
13
0
1
12
0
2
11
1
instruction
3
10
1
4
9
0
5
8
0
6
7
0
7
6
0
POR
8
5
0
PB1
9
4
0
PB2
10
3
0
PB3
11
status out
2
0
PB4
12
1
0
LBD
13
0
0
WK-UP
14
nIRQ
15
POR
- -
Si4020
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