AXM0F243
SoC Ultra-Low Power
RF-Microcontroller for RF
Carrier Frequencies in the
Range 27 - 1050 MHz
www.onsemi.com
OVERVIEW
Features
SystemonChip (SoC) Ultralow Power Advanced
Narrowband RFmicrocontroller for Wireless
1 40
Communication Applications
QFN40 7x5, 0.5P
 QFN40 Package
CASE 485EG
 Supply Range 1.8 V  3.6 V
ORDERING INFORMATION
 40C to 85C
See detailed ordering and shipping information in Table 58 of
this data sheet.
 Deep Sleep Mode with Operational Analog and 2.5 A 
Digital System Current
 Radio RXmode 
Programmable Digital
6.5 mA @ 169 MHz
 Programmable logic blocks allowing Boolean
9.5 mA @ 868 MHz and 433 MHz
operations to be performed on port inputs and outputs
 Radio TXmode at 868 MHz
7.6 mA @   0 dBm
LowPower 1.8 V to 3.6 V Operation
21 mA  @ 10 dBm
 Deep Sleep mode with operational analog and 2.5 A
55 mA  @ 15 dBm
digital system current
 This is a PbFree Device
Serial Communication
32bit MCU Subsystem
 Two independent runtime reconfigurable Serial
 48MHz ARM CortexM0+ CPU
Communication Blocks (SCBs) with reconfigurable
 Up to 64 KB of Flash with Read Accelerator
2
I C, SPI, or UART functionality
 Up to 8 KB of SRAM
Timing and PulseWidth Modulation
Programmable Analog
 Five 16bit timer/counter/pulsewidth modulator
 Two opamps with reconfigurable highdrive external
(TCPWM) blocks
and highbandwidth internal drive and Comparator
 Centeraligned, Edge, and Pseudorandom modes
modes and ADC input buffering capability. Opamps
 Comparatorbased triggering of Kill signals for motor
can operate in Deep Sleep lowpower mode.
drive and other highreliability digital logic
 12bit 1Msps SAR ADC with differential and
applications
singleended modes
 Singleslope 10bit ADC function
Up to 20 Programmable GPIO Pins
 Two current DACs (IDACs) for generalpurpose
 Any GPIO pin can be analog, or digital
applications on any pin
 Drive modes, strengths, and slew rates are
 Two lowpower comparators that operate in Deep
programmable
Sleep lowpower mode
 Semiconductor Components Industries, LLC, 2018
1 Publication Order Number:
June, 2018  Rev. 0 AXM0F243/DAXM0F243
High Performance Narrowband RF Transceiver  Ultra Fast Settling RF Frequency Synthesizer for
compatible to AX5043 (FSK/MSK/4FSK/GFSK/GMSK/ Lowpower Consumption
ASK/AFSK/FM/PSK)  Fully Integrated RF Frequency Synthesizer with
VCO Autoranging and Bandwidth Boost Modes
 Receiver
for Fast Locking
 Carrier Frequencies from 27 to 1050 MHz
 Configurable for either Fully Integrated VCO,
 Data Rates from 0.1 kbps to 125 kbps
Internal VCO with External Inductor or Fully
 Optional Forward Error Correction (FEC)
External VCO
 Sensitivity without FEC
 Configurable for either Fully Integrated or External
135 dBm @  0.1 kbps, 868 MHz, FSK
Synthesizer Loop Filter for a Large Range of
126 dBm @     1 kbps, 868 MHz, FSK
Bandwidths
117 dBm @   10 kbps, 868 MHz, FSK
 Channel Hopping up to 2000 hops/s
107 dBm @ 100 kbps, 868 MHz, FSK
 Automatic Frequency Control (AFC)
105 dBm @ 125 kbps, 868 MHz, FSK
 Flexible Antenna Interface
138 dBm @  0.1 kbps, 868 MHz, PSK
 Integrated RX/TX Switching with Differential
130 dBm @     1 kbps, 868 MHz, PSK
Antenna Pins
120 dBm @   10 kbps, 868 MHz, PSK
 Mode with Differential RX Pins and Singleended
109 dBm @ 100 kbps, 868 MHz, PSK
TX Pin for Usage with External PAs and for
108 dBm @ 125 kbps, 868 MHz, PSK
Maximum PA Efficiency at Low Output Power
 Sensitivity with FEC
137 dBm @ 0.1 kbps, 868 MHz, FSK
 WakeuponRadio
122 dBm @    5 kbps, 868 MHz, FSK
 640 Hz or 10 kHz Lowest Power Wakeup Timer
111 dBm @  50 kbps, 868 MHz, FSK
 Wakeup Time Interval programmable between
 High Selectivity Receiver with up to 47 dB Adjacent
98s and 102 s
Channel Rejection
 0 dBm Maximum Input Power
 Sophisticated Radio Controller
 10% Datarate Error Tolerance
 Antenna Diversity and RX/TX Switch Control
 Support for Antenna Diversity with External
 Fully Automatic Packet Reception and Transmission
Antenna Switch
without Microcontroller Intervention
 Short Preamble Modes allow the Receiver to work
 Supports HDLC, Raw, Wireless MBus Frames and
with as little as 16 Preamble Bits
Arbitrary Defined Frames
 Fast State Switching Times
 Automatic Channel Noise Level Tracking
200 s TX  RX Switching Time
 s Resolution Timestamps for Exact Timing (eg. for
62   s RX  TX Switching Time
Frequency Hopping Systems)
 256 Byte Microprogrammable FIFO, optionally
 Transmitter
supports Packet Sizes > 256 Bytes
 Carrier Frequencies from 27 to 1050 MHz
 Three Matching Units for Preamble Byte,
 Datarates from 0.1 kbps to 125 kbps
Syncword and Address
 High Efficiency, High Linearity Integrated Power
 Ability to store RSSI, Frequency Offset and
Amplifier
Datarate Offset with the Packet Data
 Maximum Output Power
 Multiple Receiver Parameter Sets allow the use of
16 dBm @ 868 MHz
more aggressive Receiver Parameters during
16 dBm @ 433 MHz
Preamble, dramatically shortening the Required
16 dBm @ 169 MHz
Preamble Length at no Sensitivity Degradation
 Power Level programmable in 0.5 dB Steps
 GFSK Shaping with BT=0.3 or BT=0.5
 Advanced Crystal Oscillator (RF Reference Oscillator)
 Unrestricted Power Ramp Shaping
 Fast Startup and Lowest Power Steadystate XTAL
Oscillator for a Wide Range of Crystals
 RF Frequency Generation
 Integrated Tuning Capacitors
 Configurable for Usage in 27 MHz 1050 MHz
 Possibility of Applying an External Clock Reference
Bands
(TCXO)
 RF Carrier Frequency and FSK Deviation
Programmable in 1 Hz Steps
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