PDF MRF24WN0MB Data sheet ( Hoja de datos )

Número de pieza	MRF24WN0MB
Descripción	2.4 GHz IEEE 802.11b/g/n Wireless Module
Fabricantes	Microchip
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MRF24WN0MA/MB 2.4 GHz IEEE 802.11b/g/n Wireless Module Features • IEEE 802.11b/g/n Compliant Transceiver • 2.4 GHz IEEE 802.11n Single Stream 1x1 • SPI Interface to Host Controller (4-wire including interrupt) • Works with Microchip's MPLAB® Harmony Integrated Software Framework • Fully Integrated Wireless Module with Voltage Regulation, Crystal, RF Matching Circuitry, Power Amplifier (PA), Low Noise Amplifier (LNA), and PCB Trace Antenna • Ultra-Small W.FL Connector for External Antennas (MRF24WN0MB) • Compact Surface Mount Module: 0.700" x 1.050" x 0.085“ (17.8 mm x 26.7 mm x 2.2 mm) • Castellated Surface Mount Pads for easy and reliable PCB mounting • Environmentally Friendly, RoHS Compliant Operational • Single Operating Voltage: 3.15V to 3.45V (3.3V typical) • Temperature Range: -40°C to +85°C Industrial • Low-Current Consumption: - RX mode: 64 mA (typical) - TX mode: 246 mA at 18 dBm (typical) • Power Saving Mode: - Hibernate: 10 µA (typical) RF/Analog • Frequency: 2.412 to 2.472 GHz • Channels: 1-13 • Modulation: DSSS, CCK, BPSK, QPSK, 16QAM, 64QAM • Sensitivity: -94 dBm Antenna • Integral PCB Trace Antenna (MRF24WN0MA) • External Antenna (MRF24WN0MB) Compliance • Modular Certified for the United States (FCC) and Canada (IC) • European R&TTE Directive Assessed Radio Module • Australia, New Zealand, Korea, Taiwan, and Japan Applications • Utility and Smart Energy • Consumer Electronics • Industrial Controls • Remote Device Management • Retail • Medical, Fitness, and Health Care  2015 Microchip Technology Inc. Advance Information DS50002410A-page 1 1 page MRF24WN0MA/MB TABLE 1-2: PIN DESCRIPTIONS Pin Name Type Description(1) 1 GND Power — 2 TEST Test Do not connect 3 GND Power — 4 VDD Power — 5 NC Reserved Do not connect 6 NC Reserved Do not connect 7 NC 8 NC 9 NC 10 NC Reserved Reserved Reserved Reserved Do not connect Do not connect Do not connect Do not connect 11 NC Reserved Do not connect 12 NC Reserved Do not connect 13 SPI_CLK DI SPI clock input 14 SPI_MISO 15 VDD DO Power SPI data output; pull-down to GND with 10 kilo-ohm resistor — 16 GND Power — 17 TEST Test Do not connect 18 TEST Test Do not connect 19 HIBERNATE DI Lowest Power State (active-low) 20 SPI_INT DO 21 MODE0 DI 22 SPI_MOSI DI 23 SPI_CS/MODE1 DI SPI interrupt output (active-low) Mode select 0; Connect to GND(2) SPI data input SPI Chip Select/Mode select 1; Connect to VDD via 10 kilo-ohm pull-up resistor(2)(3) 24 GND Power — 25 NC Reserved Do not connect 26 NC 27 GND 28 NC 29 NC Reserved Power Reserved Reserved Do not connect — Do not connect Do not connect 30 NC Reserved Do not connect 31 NC Reserved Do not connect 32 NC Reserved Do not connect 33 NC Reserved Do not connect 34 GND Power — 35 VDD Power 36 GND Power 37 GND Power Legend: A = Analog, D = Digital, I = Input, O = Output — — — Note 1: For NC = No Connect pins, do not make any connection. The module is configured with internal pull-up and pull-down resistors. 2: Refer to Section 2.2, "MODE0 and MODE1 Pins" 3: Refer to Section 2.3, "SPI Port Pins"  2015 Microchip Technology Inc. Advance Information DS50002410A-page 5 5 Page MRF24WN0MA/MB 2.0 CIRCUIT DESCRIPTION 2.1 Overview The MRF24WN0MA/MB module interfaces to the PIC32 MCU via a 4-wire SPI port, Interrupt and Hiber- nate pins as illustrated in Figure 2-1. The MRF24WN0MA/MB modules are designed to work with Microchip's MPLAB® Harmony Integrated Soft- ware Framework. The integrated framework imple- ments the Application Programming Interface (API) that is used for command and control, management and data packet traffic. The MPLAB Harmony basic framework is available via a free download from the Microchip web site at http://www.microchip.com/harmony. For more informa- tion on the basic framework and available release ver- sions, refer to the “MPLAB Harmony Release Notes and Contents” found under the Documentation tab. If you are new to the MPLAB Harmony framework, visit http://www.microchip.com/harmony and go to the Training > Getting Started tab. The MPLAB Harmony Help document is available for download from the MPLAB Harmony framework direc- tory: c:\microchip\harmony\<version>\doc. The PIC32 input/output ports (SPI, Interrupt and Hiber- nate) are configured in the MPLAB Harmony frame- work configuration files as described in the MPLAB Harmony Help document. 2.2 MODE0 and MODE1 Pins The MODE pins must be tied to the voltage levels for normal operation of the module. Refer to Table 2-1. TABLE 2-1: MODE PIN OPERATION Pin Condition MODE0 SPI_CS/MODE1 Connect to GND Connect to VDD via 10 k pull-up resistor The MODE pins are sampled at power on and wake- up. Refer to Section 2.6, "Hibernate". In the case of SPI_CS/MODE1 pin, pull-up using a 10 k resistor and the host MCU allows an active-high signal during power on and wake-up to ensure that the module start- up in normal operation. Once the module is operational, the pin becomes the SPI Port Chip Select pin (active-low). FIGURE 2-1: HARMONY TO MRF24WN0MA/MB BLOCK DIAGRAM PIC32 Application(s) TCP/IP Stack Wi-Fi Driver PLIB Power Ground MRF24WN0MA/MB  2015 Microchip Technology Inc. Advance Information DS50002410A-page 11 11 Page

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