Index > Product > 2.4 GHz Short Range Devices > A8137
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General Description
A8137 is a high performance and low cost 2.4GHz ISM band FSK/GFSK system-on-chip (SoC) wireless transceiver chip. This device integrates high speed pipeline 8051 MCU, 16KBytes In-system programmable flash memory*F, 256Bytes internal data RAM, 256Bytes external data RAM, various powerful functions and excellent performance of 2.4GHz RF transceiver. Besides, A8137 has 16Kbytes OTP*T memory version for one times program application A8137 has various operating modes, making it highly suited for systems where ultra-low power consumption is required.

A8137 supports 2.4GHz IEEE 802.15.4 MAC layers and physical layers except RF modulation. A8137 does not support DSSS but GFSK/ FSK modulation. Besides, A8137 also supports preparatory data frame (protocol) to communicate with AMICCOM 2.4GHz RFIC, like A7125 and A7137.

A8137 supports fast settling time for frequency hopping system. For packet handling, A8137 has built-in separated 64-bytes TX/RX FIFO for data buffering and burst transmission, auto-ack and auto-resend, CRC for error packet filtering, FEC for 1-bit data correction per code word, RSSI for clear channel assessment, thermal sensor for monitoring relative temperature, WOR (Wake on RX) function to support periodically wake up from sleep mode to RX mode and listen for incoming packets without MCU interaction, data whitening for data encryption / decryption. Those functions are very easy to use while developing a wireless system.

Note: *F means flash version only, *T means OTP version only in this datasheet.
 Package size (QFN5X5, 40 pins and 32 pins).
 High performance pipeline complicated 8051
 Operation clock: 1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64 of crystal oscillator.
 16KBytes Flash memory*F / OTP*T with copy protection, 256Bytes internal data RAM, 256Bytes external data RAM
 UART, I2C, SPI serial communication
 3 16/8-bit counter/timers
 2*F/4*T Channel PWM
 Watchdog timer
 Sleep timer
 In-Circuit Debugger
 In-System programming/ In-Application programming*F
 Key wake-up
 24 GPIO
 Support 2.4GHz FSK/GFSK modulation.
 Low RX current consumption (23.5mA)
 Low TX current consumption (40mA @ 10 dBm).
 PM3 current (0.6 uA)
 On chip regulator, support input voltage 2.0 ~ 3.6 V.
 Programmable TX power level from -20 dBm to 10 dBm.
 High sensitivity: -90dBm at 2Mbps on-air data rate
 Fast settling time (90 us) for frequency hopping system.
 Support low cost crystal (16 MHz).
 Support RTC clock (32.768KHz)
 ONE register setting for new channel frequency.
 8-bits Digital RSSI for clear channel indication.
 Auto Calibrations.
 Auto IF function.
 Clear channel assessment (CCA).
 Auto-ACK and Auto-resend scheme.
 Auto RSSI measurement.
 Auto CSMA-CA.
 Auto FCS (CRC) and Filtering.
 Separated 64 bytes FIFO for RX and TX.
 Support ED (Energy Detect) for CCA.
 Integrated RC Oscillator for WOR /TWOR/WOT function.
 Built-in Battery Detect, Thermal Sensor and Crystal load capacitors.
 Wireless sensor network
 2.4GHz active RFID
 2400 ~ 2483.5 MHz ISM system
 Smart remote controller
 Home and building automation
 Wireless toys and game controllers
Application Note
Reference circuit design (Module)
Reference code
Evaluation kit (EK)
Development Board (DVP)
ICE tool
Flash/OTP programming tool
Production test tool
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