MRF24J40-I/ML Microchip Technology, MRF24J40-I/ML Datasheet - Page 13

• 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
Memory in the MRF24J40 is implemented as static
RAM and is accessible via the SPI port. Memory is
functionally divided into control registers and data buf-
fers (FIFOs), as shown in Figure 2-6. Control registers
FIGURE 2-6:
© 2010 Microchip Technology Inc.
Memory Organization
0x00
0x3F
MEMORY MAP FOR MRF24J40
Memory Space
Control Registers
Short Address
64 bytes
Preliminary
provide control, status and device addressing for
MRF24J40 operations. FIFOs serve as temporary
buffers for data transmission, reception and security
keys. Memory is accessed via two addressing
methods: Short and Long.
0x000
0x07F
0x080
0x0FF
0x100
0x17F
0x180
0x1FF
0x200
0x27F
0x280
0x2BF
0x2C0
0x2FF
0x300
0x38F
Security Key FIFO
TX Beacon FIFO
Control Registers
TX Normal FIFO
Memory Space
TX GTS1 FIFO
TX GTS2 FIFO
Long Address
Reserved
RX FIFO
MRF24J40
128 bytes
128 bytes
128 bytes
128 bytes
128 bytes
64 bytes
144 bytes
DS39776C-page 13