The ATtiny3227 is a microcontroller featuring the AVR^®  CPU with hardware multiplier, running at up to 20 MHz, and with 32 KB Flash, 3 KB SRAM and 256B of EEPROM in a 24-pin VQFN 4 x 4 mm package. The family uses the latest Core Independent Peripherals with low-power features, including Event System, intelligent analog and advanced peripherals.

The new 12-bit ADC offers true differential measuring capabilities with optional  hardware accumulation of up to 1024 samples, which effectively gives up to 17-bits resolution. With sampling rates up to 375 ksps, the analog data is available very rapidly. The Programmable Gain Amplifier (PGA) for the ADC can amplify single-ended and differential analog inputs to make it possible to measure even small amplitude signals efficiently.

ATtiny1627 Product Family Overview (tinyAVR 2 Family)

Functional Safety
This product is recommended for safety-critical applications, targeting industrial and automotive products (IEC 61508 and ISO 26262). Necessary documentation, such as the FMEDA report and Safety Manual, can be provided on request. Certified development tools are also available for this product. Contact your local Microchip sales office or your distributor for more information.

• High-Performance AVR RISC CPU with Hardware Multiplier
• Running at up to 20 MHz
• Single Cycle I/O Access
• Two-level Interrupt Controller
• Sleep modes: Idle, Standby, Power-down
• 6 channels Event System
• Configurable Custom Logic (CCL)
• Single pin programming and debugging interface (UPDI)
• Analog Features
• 12-bit Differential ADC with Programmable Gain Amplifier (PGA)
• Analog Comparator with internal DAC reference
• Timer/Counters
• 1x 16-bit Timer/Counter type A (TCA)
• 2x 16-bit Timer/Counter type B (TCB)
• 1x 16-bit Real Time Counter (RTC) with Periodic Interrupt Controller (PIT)
• Built-in Safety Functions:
• Power-On Reset (POR)
• Brown-Out-Detection (BOD)
• Voltage Level Monitor (VLM)
• Cyclic Redundancy Check (CRC) Scan
• Window Watchdog Timer (WWDT)
• Communication
• Serial communication interfaces: 2x USART, SPI, I2C