MRF24J40-I/ML Microchip Technology, MRF24J40-I/ML Datasheet - Page 14

• 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

2.14.1
The short address memory space contains control
registers with a 6-bit address range of 0x00 to 0x3F.
Figure 2-7 shows a short address read and Figure 2-8
shows a short address write. The 8-bit SPI transfer
FIGURE 2-7:
FIGURE 2-8:
DS39776C-page 14
MRF24J40
SDO
SCK
SDO
SCK
SDI
SDI
CS
CS
0
0
SHORT ADDRESS REGISTER
INTERFACE
A5
A5
A4
A4
SHORT ADDRESS READ
SHORT ADDRESS WRITE
A3
A3
A2
A2
A1
A1
A0
A0
Preliminary
0
1
D7
D7
begins with a ‘0’ to indicate a short address transaction.
It is followed by the 6-bit register address, Most Signif-
icant bit (MSb) first. The 8
(‘0’) or write (‘1’) transaction.
D6
D6
D5
D5
D4
D4
X
D3
D3
© 2010 Microchip Technology Inc.
th
D2
bit indicates if it is a read
D2
D1
D1
D0
D0