MRF24J40-I/ML Microchip Technology, MRF24J40-I/ML Datasheet - Page 5

• 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

1.0
The MRF24J40 is an IEEE 802.15.4™ Standard com-
pliant 2.4 GHz RF transceiver. It integrates the PHY
and MAC functionality in a single chip solution.
Figure 1-1 shows a simplified block diagram of a
MRF24J40 wireless node. The MRF24J40 creates a
low-cost, low-power, low data rate (250 or 625 kbps)
Wireless Personal Area Network (WPAN) device. The
MRF24J40 interfaces to many popular Microchip PIC
microcontrollers via a 4-wire serial SPI interface,
interrupt, wake and Reset pins.
The MRF24J40 provides hardware support for:
• Energy Detection
• Carrier Sense
FIGURE 1-1:
© 2010 Microchip Technology Inc.
Antenna
OVERVIEW
Matching
Circuitry
WIRELESS NODE BLOCK DIAGRAM
RFP
RFN
Management
Power
PHY
Preliminary
®
MRF24J40
MAC
Memory
• Three CCA Modes
• CSMA-CA Algorithm
• Automatic Packet Retransmission
• Automatic Acknowledgment
• Independent Transmit, Beacon and GTS FIFO
• Security Engine supports Encryption and
These features reduce the processing load, allowing
the use of low-cost 8-bit microcontrollers.
The MRF24J40 is compatible with Microchip's
ZigBee
software stack is available as a free download, includ-
ing source code, from the Microchip web site:
http://www.microchip.com/wireless.
20 MHz
Crystal
Buffers
Decryption for MAC Sublayer and Upper Layer
®
, MiWi™ and MiWi P2P software stacks. Each
RESET
WAKE
SDO
SCK
SDI
INT
CS
MRF24J40
I/O
SDO
SDI
SCK
INTx
I/O
I/O
PIC
DS39776C-page 5
®
MCU