The ATtiny3217 of microcontroller featuring the 8-bit AVR® processor with hardware multiplier - running at up to 20MHz and with up to 32 KB Flash, 2 KB SRAM and 256 bytes of EEPROM in a 24-pin package. The series uses the latest Core Independent Peripherals with low power features. Including Event System, intelligent analog and advanced peripherals. Capacitive touch interfaces with proximity sensing and driven shield are supported by the integrated QTouch® Peripheral Touch Controller (PTC).

Hardware multiplier
Three sleep modes:
Idle
Standby
Power Down
Event System
Watchdog Timer (WDT)
Power-On Reset (POR)
Brown-Out Detection (BOD)
Single pin programming and debugging interface (UPDI)
12 Channel 10-bit ADC with Voltage Reference
8-bit Digital to Analog Converter (DAC)
Analog Comparators (AC)
Configurable Custom Logic (CCL)
1x 12-bit Timers (TCD)
2x 16-bit Timer (TCA / TCB)
Cyclical Redundancy Check (CRC/SCAN)
Peripheral Touch Controller (PTC)
14 channels self-capacitance
49 mutual-capacitance buttons supported
SPI / I2C / USART