nSesame is the lowest cost member of indie’s HV/Automotive series of ARM M0-based microcontrollers. Clocking at up to 20MHz, the ARM M0 core integrates 160kB of flash RAM and 8kB of SRAM on die for feature-rich applications or applications requiring redundancy of data storage. It also integrates a superheterodyne ISM-band ASK receiver operating at 433MHz and with sensitivity performance of -110dBm. It is intended to support a wide array of applications including garage door openers and radio controlled industrial door and security systems, as well as automotive alarm systems.
The iND83221 integrates multiple clocking options including a high accuracy (1%) 10MHz RC oscillator, low cost 3.58MHz XTAL oscillator, and low power (<1uA) 10kHz auxiliary clock. It also contains (3) 32-bit timers, and a watchdog timer for high performance, low power designs.
nSesame also integrates multiple types of GPIOs. There are 6 high voltage (9-45V) GPIOs which can source 5mA or sink 25mA of current and 3 high voltage (9-45V) GPIOs which can sink 200mA in order to drive a relay coil. There is also a 12-bit PWM output.

Parameter Name	Value	Comments
MCU	ARM M0 32-Bit MCU
Flash	160kB
RAM	8kB
Low Voltage GPIOs
High Voltage GPIOs	6
High Voltage and Current GPIOs	3
LED Drivers
RF	1x 433MHz ASK Receiver
ADC
ADC Channels
DAC
PWM	1x12bits
LIN2.0
Others	1xUART,1xI2C,1xSPI
Power Supply	9-45V
Operation Temperature	-40C ~ +85C
Package	7×7 48pins QFN