ATTINY3227 Series

12-bit diff ADC with PGA

Catalog

12-bit diff ADC with PGA

Part	Core Size	Package / Case	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Data Converters	Data Converters	EEPROM Size	Number of I/O	Supplier Device Package	Program Memory Type	Core Processor	Connectivity	Speed	Mounting Type	Oscillator Type	Program Memory Size
Microchip Technology ATTINY3227-MFR	8-Bit	24-VFQFN Exposed Pad	-40 °C	125 °C	1.8 V	5.5 V	12 b 15	A/D	256 x 8	22	24-VQFN (4x4)	FLASH	AVR	I2C IrDA SPI UART/USART	20 MHz	Surface Mount	External Internal	32 KB
Microchip Technology ATTINY3227-MF	8-Bit	24-VFQFN Exposed Pad	-40 °C	125 °C	1.8 V	5.5 V	12 b 15	A/D	256 x 8	22	24-VQFN (4x4)	FLASH	AVR	I2C IrDA SPI UART/USART	20 MHz	Surface Mount	Internal	32 KB
Microchip Technology ATTINY3227-MUR	8-Bit	24-VFQFN Exposed Pad	-40 °C	85 °C	1.8 V	5.5 V	12 b 15	A/D	256 x 8	22	24-VQFN (4x4)	FLASH	AVR	I2C IrDA SPI UART/USART	20 MHz	Surface Mount	External Internal	32 KB
Microchip Technology ATTINY3227-MU	8-Bit	24-VFQFN Exposed Pad	-40 °C	85 °C	1.8 V	5.5 V	12 b 15	A/D	256 x 8	22	24-VQFN (4x4)	FLASH	AVR	I2C IrDA SPI UART/USART	20 MHz	Surface Mount	Internal	32 KB

Catalog

12-bit diff ADC with PGA

Key Features

• Functional Safety* [Appliances safety - IEC 60730 (Class B)](https://www.microchip.com/en-us/products/microcontrollers-and-microprocessors/8-bit-mcus/functional-safety/iec-60730-functional-safety-for-home-appliances)

• * [Industrial safety – IEC 61508 (SIL)](https://www.microchip.com/en-us/products/microcontrollers-and-microprocessors/8-bit-mcus/functional-safety/iec-61508-industrial-functional-safety)

• * [Automotive safety – ISO 26262 (ASIL)](https://www.microchip.com/en-us/products/microcontrollers-and-microprocessors/8-bit-mcus/functional-safety/iso-26262-automotive-functional-safety)

•

• High-Performance AVR RISC CPU with Hardware Multiplier* Running at up to 20 MHz

• * [Single Cycle I/O Access](https://www.microchip.com/en-us/products/microcontrollers-and-microprocessors/8-bit-mcus/core-independent-and-analog-peripherals/system-flexibility/input-and-output-features)

• * Two-level Interrupt Controller

• * Sleep modes: Idle, Standby, Power-down

• * [6 channels Event System](https://www.microchip.com/en-us/products/microcontrollers-and-microprocessors/8-bit-mcus/core-independent-and-analog-peripherals/system-flexibility/event-system)

• * [Configurable Custom Logic (CCL)](https://www.microchip.com/en-us/products/microcontrollers-and-microprocessors/8-bit-mcus/core-independent-and-analog-peripherals/system-flexibility/custom-logic)

• * Single pin programming and debugging interface (UPDI)

•

• Analog Features* [12-bit Differential ADC with Programmable Gain Amplifier (PGA)](https://www.microchip.com/en-us/products/microcontrollers-and-microprocessors/8-bit-mcus/core-independent-and-analog-peripherals/integrated-analog/analog-to-digital-converter-with-enhanced-features)

• * [Analog Comparator with internal DAC reference](https://www.microchip.com/en-us/products/microcontrollers-and-microprocessors/8-bit-mcus/core-independent-and-analog-peripherals/integrated-analog/comparator)

•

• Timer/Counters* [1x 16-bit Timer/Counter type A (TCA)](https://www.microchip.com/en-us/products/microcontrollers-and-microprocessors/8-bit-mcus/core-independent-and-analog-peripherals/timer-peripheral)

• * [2x 16-bit Timer/Counter type B (TCB)](https://www.microchip.com/en-us/products/microcontrollers-and-microprocessors/8-bit-mcus/core-independent-and-analog-peripherals/timer-peripheral)

• * 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](https://www.microchip.com/en-us/products/microcontrollers-and-microprocessors/8-bit-mcus/core-independent-and-analog-peripherals/safety-and-monitoring/cyclic-redundancy-check)

• * [Window Watchdog Timer (WWDT)](https://www.microchip.com/en-us/products/microcontrollers-and-microprocessors/8-bit-mcus/core-independent-and-analog-peripherals/safety-and-monitoring/windowed-watchdog-timer)

•

• Communication* Serial communication interfaces: 2x USART, SPI, I2C

Description

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)](https://www.microchip.com/en-us/products/microcontrollers-and-microprocessors/8-bit-mcus/avr-mcus/attiny1627) **Functional Safety** This product is suitable for [safety-critical applications](https://www.microchip.com/en-us/products/microcontrollers-and-microprocessors/8-bit-mcus/functional-safety) that target home appliances (IEC 60730), automotive (ISO 26262) and industrial (IEC 61508) products. We have important documentation and tools available to aid developers of safety applications—refer to the product feature list for links to the specific safety collateral. TÜV SÜD-certified MPLAB® X Integrated Development Environment (IDE) tools, such as the [MPLAB XC8 Functional Safety Compiler](https://www.microchip.com/en-us/development-tool/SW006021-FS), are also available for this product.