MRF49XA-I/ST Microchip Technology, MRF49XA-I/ST Datasheet - Page 93

• Manufacturer Part Number: MRF49XA-I/ST
• Description: IC RF TXRX 433/868/915 16-TSSOP
• Manufacturer: Microchip Technology

Specifications of MRF49XA-I/ST

• Package / Case: 16-TSSOP
• Frequency: 433MHz, 868MHz, 915MHz
• Data Rate - Maximum: 256kbps
• Modulation Or Protocol: FHSS, FSK
• Applications: Home / Industrial Automation, Remote Access, Security Alarms
• Power - Output: 7dbm
• Sensitivity: -110dBm
• Voltage - Supply: 2.2 V ~ 3.8 V
• Current - Receiving: 11mA
• Current - Transmitting: 15mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Number Of Receivers: 1
• Number Of Transmitters: 2
• Wireless Frequency: 433 MHz to 915 MHz
• Output Power: + 7 dBm
• Operating Supply Voltage: 2.5 V, 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Modulation: FHSS, FSK
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 579-MRF49XA-1/ST

APPENDIX A:
Figure A-1 shows the STSREG read sequence with
FIFO read as an example.
FIGURE A-1:
TABLE A-1:
© 2009 Microchip Technology Inc.
Minimum Length
Recommended Length 8-12 bits (e.g., 0xAA or 0x55)
SDO
CS
SCK
SDI
Note: 1. Applicable when the RXCEN bit is set using the PMCREG.
TXRXFIFO
Length
(1)(2)(3)
2. Applicable when the RXCEN bit is cleared using the PMCREG.
3. These bits are internally latched and the other bits are only multiplexed out.
0
Command
(Latched)
POR
RECOMMENDED FIFO PACKET STRUCTURES
1
Interrupt Bits Out
(Latched) (Latched) (Latched) (Latched)
TXOWR
(1,2,3)
XOF
READ SEQUENCE
AND PACKET
STRUCTURES
STSREG READ SEQUENCE
2
WUTI
NT
3
4-8 bits (0x0A or 0x05)
XINT
LCE
4
Preamble
LBTD
5
FIFO
EM
6
(1,2,3)
ATRS
SI
7
Preliminary
DQDO
8
Synchronous Word/Network ID
CLKRL
0x2DD4 (D4 is programmable)
Status Bits Out
9
AFCCT
0xD4 (programmable)
10
OFFSV
(Sign)
11
OFFSB
<3>
12
OFFSB
<2>
13
OFFSB
<1>
14
OFFSB
<0>
15
MRF49XA
Payload
FO
—
—
16
FIFO Out
DS70590B-page 91
FO+1
17
4-bit-1 byte
FO+2
2 bytes
CRC