RFM50 v1.0 1 tel: +86-755-82973805 fax: +86-755-8 2973550 e-mail: sales@hoperf.com http://www.hoperf.com mcu with 100mw 433/470/868/915 mhz ism band transceiver module the purpose of this RFM50 s pec covers mainly for the hardware and rf parameter info of the module, for mcu and software info please refer to h rf50 chip data sheets h , for RFM50? demo please refer to rf(m)50 demo kit 1. 5 b general introduction RFM50 module series? design is based on the high performance rf50 soc chip, it include a cip-51 core? mcu and 100mw transceiver. it operate at 433/4 70/868/915 mhz ism band, comply with fcc, etsi regulation. 2. 6 b features ultra low power: 0.9 to 3.6 v operation - typical sleep mode current < 0.1 a; retains state and ram contents over full supply range; fast wakeup of < 2 s - less than 600 na with rtc running - less than 1 a with rtc running and radio state retained - on-chip dc-dc converter allows operation down to 0.9 v. - two built-in brown-out detectors cover sleep and active modes 10-bit analog to digital converter - up to 300 ksps - up to 18 external inputs - external pin or internal vref (no external capacitor required) - built-in temperature sensor - external conversion start input option - autonomous burst mode with 16-bit automatic averaging accumulator dual comparators - programmable hysteresis and response time - configurable as interrupt or reset source - low current (< 0.5 a) on-chip debug - on-chip debug circuitry facilitates full-speed, non- intrusive in-system debug (no emulator required) - provides breakpoints, single stepping - inspect/modify memory and registers - complete development kit high-speed 8051 c core - pipelined instruction arch itecture; executes 70% of instructions in 1 or 2 system clocks - up to 25 mips throughput with 25 mhz clock - expanded interrupt handler memory - 4352 bytes internal data ram (256 + 4096) - 64 kb flash; in-system programmable in 1024-byte se ctors?1024 bytes are reserved in the 64 kb devices transceiver rfm 50 free datasheet http:///
RFM50 v1.0 2 tel: +86-755-82973805 fax: +86-755-8 2973550 e-mail: sales@hoperf.com http://www.hoperf.com - frequency range = 433,470,868,915 mhz ism band - sensitivity = ?121 dbm - fsk, gfsk, and ook modulation - max output power = +20 dbm - rf power consumption - 18.5ma receive - 18 ma @+1 dbm transmit - 40ma @+13 dbm transmit - 100ma @+20 dbm transmit - data rate = 0.123 to 256 kbps - auto-frequency calibration (afc) - transmit/receive switch control - programmable packet handler - tx and rx 64 byte fifos - frequency hopping capability - on-chip crystal tuning digital peripherals - 19 or 16 port i/o plus 3 gpio pins; hardware enhanced ua rt, spi, and i2c serial ports available concurrently - low power 32-bit smartclock - four general purpose 16-bit counter/timers; six channel programmable counter array (pca) clock sources - precision internal oscillators: 24.5 mhz with 2% accu racy supports uart operation; spread-spectrum mode for reduced emi; low power 20 mhz internal oscillator - external oscillator: crys tal, rc, c, cmos clock - smartclock oscillator: 32.768 khz crystal or self-oscillate - can switch between clock sources on-the-fly; useful in pow er saving modes and in implementing various power saving modes i/o port -19 or 20 port i/o (5 v tolerant except for gpio_2) package - 30-pin smd (11x25x2.0 mm) 3. 7 b typical application ? internet of things ? wireless data collection ? meter reading ? automobile security system ? wireless sensor ? home automation and security system free datasheet http:///
RFM50 v1.0 3 tel: +86-755-82973805 fax: +86-755-8 2973550 e-mail: sales@hoperf.com http://www.hoperf.com 4. 8 b pin definition figure 1. RFM50 pin definition(top view) definition type function ant ai/ ao rf signal input/output port, connect 50 ohm antenna gnd g power ground gpio2 di/do or ai/ao general pu rpose i/o controlled by the rf22 per iph-eral. may be configured through the rf22 registers to perform va rious functions including: clock output, fifo status, por, wake-up timer, lo w battery detect, tr sw, antdiversity control, etc. see the rf22 gpio con-figur ation registers for more information. p0.7 iref0 d i/o or a i ao port 0.7. see rf50 port i/o secti on for a complete description. iref0 output. see rf50 iref se ction for complete description. p0.6 cnvstr d i/o or a i di port 0.6. see rf50 port i/o secti on for a complete description. external convert start input for adc0. see rf50 adc0 section for a complete description. p0.5 rx d i/o or a i di port 0.5. see rf50 port i/o secti on for a complete description. uart rx pin. see rf50 port i/o section. p0.4 tx d i/o or a i do port 0.4. see rf50 port i/o secti on for a complete description. uart tx pin. see rf50 port i/o section. p0.1 agnd d i/o or a i g port 0.1. see port i/o section for a complete description. optional analog ground. see vref chapter. p0.3 d i/o or a in port 0.3. see rf50 port i/o sect ion for a complete description. free datasheet http:///
RFM50 v1.0 4 tel: +86-755-82973805 fax: +86-755-8 2973550 e-mail: sales@hoperf.com http://www.hoperf.com xtal2 a o di ai external clock output. this pin is the ex citation driver for an external crystal or resonator. external clock input. this pin is the exte rnal clock input in external cmos clock mode. external clock input. this pin is the ex ternal clock input in capacitor or rc oscillator configurations. see rf50 oscillator section for complete details. p0.2 xtal1 d i/o or a i ai port 0.2. see rf50 port i/o sect ion for a complete description. external clock input. this pin is the exte rnal oscillator return for a crystal or resonator. see rf50 oscillator section. p0.0 v ref d i/o or a i ai ao port 0.0. see rf50 port i/o sect ion for a complete description. external vref input. internal vref output. ex ternal vref decoupling capacitors are recommended. see rf50 voltage reference section. rst/ c2ck d i/o d i/o device reset. open-drain output of inter nal por or vdd monitor. an external source can initiate a system reset by driving this pin low for at least 15 s. a 1?5 k pullup to vdd_mcu is recommended. see reset sources section for a complete de scription. clock signal for the c2 debug interface. p2.7/ c2d d i/o d i/o port 2.7. this pin can only be used as gpio. the crossbar cannot route signals to this pin and it cannot be configur ed as an analog input. see rf50 port i/o section for a complete description. bi-directional data signal for the c2 debug interface. p2.6 d i/o or a i port 2.6. see rf50 port i/o section for a complete description. gnd g power ground vdd pi positive power supply, 1.8 to 3.6 v. p2.5 d i/o or a i port 2.5. see rf50 port i/o section for a complete description. p2.4 d i/o or a i port 2.4. see rf50 port i/o section for a complete description. p2.3 d i/o or a i port 2.3. see rf50 port i/o section for a complete description. p2.2 d i/o or a i port 2.2. see rf50 port i/o section for a complete description. xtal4 ao smartclock osc illator crystal output. xtal3 ai smartclock oscillator crystal input. p2.1 d i/o or a i port 2.1. see rf50 port i/o section for a complete description. p2.0 d i/o or a i port 2.0. see rf50 port i/o section for a complete description. p1.7 d i/o or a i port 1.7. see rf50 port i/o section for a complete description. p1.6 d i/o or a i port 1.6. see rf50 port i/o section for a complete description. p1.5 d i/o or a i port 1.5. see rf50 port i/o section for a complete description. nirq d o rf22 peripheral interrupt status pin. will be set low to indicate a pending rf22 interrupt event. see the rf22 control logic registers for more details. this pin is an open-drain output with a 220 k internal pullup resistor. an external pull -up resistor is recommended. xout ao rf22 peripheral crystal oscillator output. connect to an external 30 mhz crystal or leave floating if driving the xin pin with an external signal source. free datasheet http:///
RFM50 v1.0 5 tel: +86-755-82973805 fax: +86-755-8 2973550 e-mail: sales@hoperf.com http://www.hoperf.com xin ai rf22 peripheral crystal oscillator input. connect to an external 30 mhz crystal or to an external source. if using an external clock source with no crystal, dc coupling with a nominal 0.8 vdc level is recommended with a minimum ac amplitude of 700 mvpp. 5. 9 b electrical parameter 0 b 5.1 maximum parameter minimu m maximum unit positive power supp ly -0.3 +3.6 v voltage on digital control inputs -0.3 vdd + 0.3 v voltage on analog inputs -0.3 vdd + 0.3 v rx input power +10 dbm storage temperature -55 +125 soldering temperature(10s) +260 1 b 5.2 recommended working range parameter minimu m maximum unit positive power supply 2.2 +3.6 v working temperature -40 +85 2 b 5.3 dc characteristic parameter conditions minimum typical maximum unit supply current (tx mode, p out =+20dbm) 433,470,868,915mhz band 100 ma supply current (tx mode, p out = +13 dbm) 433,470,868,915mhz band 40 ma supply current (tx mode, p out = +1dbm) 433,470,868,915mhz band 18 ma supply current (rx mode) 433,470,868,915mhz band 18.5 ma standby current low power digital regulator on (register values retained) and main digital regula-tor, and rc oscillator off 450 800 na sleep current rc oscillator and low power digital reg-ulator on (register values retained) and main digital regulator off 1 ua free datasheet http:///
RFM50 v1.0 6 tel: +86-755-82973805 fax: +86-755-8 2973550 e-mail: sales@hoperf.com http://www.hoperf.com 3 b 5.4 transmitter ac characteristic parameter conditions minimum typical maximum unit tx frequency range 433 mhz band, 470 mhz band, 868 mhz band, 915 mhz band, 413 450 848 895 453 490 888 935 mhz fsk data rate 0.123 256 kbps ook data rate 0.123 40 kbps modulation deviation 433,470mhz 868,915mhz 0.625 0.625 320 160 khz modulation deviation ? resolution 0.625 khz output power range +1 +20 dbm tx rf output steps controlled by txpow[2:0] 3 dbm 5.5 4 b receiver ac characteristic parameter conditions minimum typical maximum unit rx frequence range 433 mhz band, 470 mhz band, 868 mhz band, 915 mhz band, 413 450 848 895 453 490 888 935 mhz (ber < 0.1%) (2 kbps, gfsk, bt = 0.5, f = 5 khz) 3 ?121 dbm (ber < 0.1%) (40 kbps, gfsk, bt = 0.5, f = 20 khz) 3 ?108 dbm (ber < 0.1%) (125 kbps, gfsk, bt = 0.5, f = 62.5 khz) ?101 dbm (ber < 0.1%) (4.8 kbps, 350 khz bw, ook) 3 ?110 dbm rx sensitivity (ber<0.1%)(1.2kbps, fd=35khz,bw=105khz, -116 dbm rx channel bandwidth 2.6 620 khz rssi resolutio 0.5 db rssi range -120 20 db free datasheet http:///
RFM50 v1.0 7 tel: +86-755-82973805 fax: +86-755-8 2973550 e-mail: sales@hoperf.com http://www.hoperf.com 6. 1 0 b mechanical dimension all units in mm free datasheet http:///
RFM50 v1.0 8 tel: +86-755-82973805 fax: +86-755-8 2973550 e-mail: sales@hoperf.com http://www.hoperf.com 7. 1 1 b ordering information part number=module type + operation band u RFM50 u ? u 433 module type operation band example: 1.RFM50 module at 433mhz band, RFM50-433 model operation band RFM50-433 433mhz RFM50-470 470mhz RFM50-868 868mhz RFM50-915 915mhz hope microelectronics co.,ltd add:4/f, block b3, east industrial area, huaqiaocheng, shenzhen, guangdong, china tel: 86-755-82973805 fax: 86-755-82973550 email: h u sales@hoperf.com u h h u t rade@hoperf.com u h website: h u http://www.hoperf.com u u http://www.hoperf.cn h u http://hoperf.en.alibaba.com u this document may contain preliminary information and is subject to change by hope microelectronics without notice. hope microelectronics assumes no responsibility or liability for any use of the information contained herein. nothing in this document shall operate as an ex press or implied license or indemnity under the intellectual property rights of h ope microelectronics or third parties. the products described in this document are not intended for use in implantation or other direct life support applications wh ere malfunction may result in the direct physical harm or injury to persons. no warranties of any kind, including, but not limited to, the implied warranties of mechantability or fitness for a articular purpose, are offered in this document. ?2006, hope microelectronics co.,ltd. all rights reserved. free datasheet http:///
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