MRF24J40-I/ML Microchip Technology, MRF24J40-I/ML Datasheet - Page 57

• Manufacturer Part Number: MRF24J40-I/ML
• Description: IC TXRX IEEE/ZIGBEE 2.4GHZ 40QFN
• Manufacturer: Microchip Technology

Specifications of MRF24J40-I/ML

• Package / Case: 40-QFN
• Frequency: 2.4GHz
• Data Rate - Maximum: 250kbps
• Modulation Or Protocol: 802.15.4
• Applications: ISM, ZigBee™
• Power - Output: 0dBm
• Sensitivity: -95dBm
• Voltage - Supply: 2.4 V ~ 3.6 V
• Current - Receiving: 18mA
• Current - Transmitting: 18mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Number Of Receivers: 1
• Number Of Transmitters: 1
• Wireless Frequency: 2.4 GHz
• Interface Type: 4 Wire SPI
• Noise Figure: 8 dB
• Output Power: + 0 dBm
• Operating Supply Voltage: 2.5 V, 3.3 V
• Maximum Operating Temperature: 85 C
• Mounting Style: SMD/SMT
• Maximum Supply Current: 22 mA
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

REGISTER 2-50:
© 2010 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-5
bit 4-3
bit 2
bit 1
bit 0
Note 1:
W-0
2:
3:
r
Sleep clock (SLPCLK) period depends on the Sleep clock selection (SLPCLKSEL) RFCON7<7:6> and
Sleep clock divisor (SLPCLKDIV) SLPCON1<4:0>.
Perform RF Reset by setting RFRST = 1 and then RFRST = 0. Delay at least 192 μs after performing to
allow RF circuitry to calibrate.
Recommended sequence RFCTL = 0x06 (reset mode) then RFCTL = 0x02 (transmit mode).
Reserved: Maintain as ‘0’
WAKECNT<8:7>: Wake Count bits
Main oscillator (20 MHz) start-up timer counter bits. WAKECNT is a 9-bit value. WAKECNT<6:0> bits
are located in SLPACK<6:0>. Units: Sleep clock (SLPCLK) period.
Recommended value: 0x05F
RFRST: RF State Machine Reset bit
1 = Hold RF state machine in Reset
0 = Normal operation of RF state machine
RFTXMODE: Forces RF Control State Machine to transmit State
RFRXMODE: Forces RF Control State Machine to receive State
R/W-0
RFCTL: RF MODE CONTROL REGISTER (ADDRESS: 0x36)
r
r = reserved
W = Writable bit
‘1’ = Bit is set
R/W-0
r
WAKECNT8 WAKECNT7
R/W-0
Preliminary
(2)
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-0
RFRST
R/W-0
(3)
(1)
(2)
Default value: 0x00.
x = Bit is unknown
RFTXMODE RFRXMODE
MRF24J40
R/W-0
DS39776C-page 57
R/W-0
bit 0