Model No: ATTINY3227-MUR
Microchip Technology ATTINY3227-MUR
Manufacturer: Microchip Technology
SEMICON NO.: ATTINY3227-MUR
Package: 24-VQFN
Stock: In stock
Description: AVR tinyAVR 2 MCU 8Bit 20MHz 32KB FLASH
SEMICON NO.: ATTINY3227-MUR
Package: 24-VQFN
Stock: In stock
Description: AVR tinyAVR 2 MCU 8Bit 20MHz 32KB FLASH
Quantity :
| Mfr | Microchip Technology |
| Device Type | 8-bit Low-Power Microcontroller (MCU) |
| Core Processor | AVR® CPU with Hardware Multiplier |
| Core Size | 8-Bit |
| Maximum CPU Speed | 20 MHz |
| Program Memory (Flash) | 32 KB (32K x 8) |
| RAM (SRAM) | 3 KB (3K x 8) |
| EEPROM | 256 Bytes (256 x 8) |
| Analog Peripherals | 12-bit Differential ADC |
| ADC Resolution | Up to 17 bits with oversampling |
| Analog Comparator | 1x with internal DAC reference |
| General-Purpose I/O Pins | 22 |
| Communication Interfaces | 2x USART, 1x SPI, 1x I2C (TWI) |
| Timers | 1x 16-bit TCA, 2x 16-bit TCB, 1x 16-bit RTC |
| Supply Voltage | 1.8 V to 5.5 V |
| Operating Temperature | -40°C to +85°C |
| Package | 24-VQFN |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
The ATTINY3227-MUR is a high-performance 8-bit AVR microcontroller from Microchip Technology's tinyAVR® 2 series, featuring the AVR CPU with hardware multiplier running at up to 20MHz in a compact 24-VQFN package. This device integrates 32KB of self-programmable Flash memory, 3KB SRAM, and 256 bytes of EEPROM, providing ample storage for embedded applications. What distinguishes the tinyAVR 2 series from its predecessors is the powerful analog front-end featuring a 12-bit differential ADC with Programmable Gain Amplifier (PGA), operational amplifier, 8-bit DAC, and the Event System for inter-peripheral communication without CPU intervention. Operating from a wide 1.8V to 5.5V supply range, this microcontroller targets space-constrained applications requiring sophisticated analog signal conditioning combined with digital control.
FAQ
Q: What distinguishes the tinyAVR 2 series from tinyAVR 0/1 series?
A: The tinyAVR 2 series emphasizes analog performance with a 12-bit differential ADC with PGA and operational amplifier, targeting analog signal conditioning applications that the 0 and 1-series cannot address.
Q: What is the UPDI interface?
A: UPDI (Unified Program and Debug Interface) is Microchip's single-pin programming and debugging interface that replaces traditional SPI/JTAG programming, simplifying PCB layout and reducing pin count requirements.
Q: What is the maximum ADC sampling rate?
A: The 12-bit ADC achieves up to 115ksps in normal mode with differential channels and PGA enabled for high-precision measurements.
Alternative MCU Models
● ATtiny3224-MFR (Microchip Technology): A lower-density 16KB Flash version in QFN-20 package targeting cost-sensitive applications with reduced memory requirements.
● ATtiny1627-MUR (Microchip Technology): The tinyAVR 1-series counterpart with 16KB Flash and similar ADC features but without the operational amplifier for simpler analog applications.
● ATtiny827-MUR (Microchip Technology): An 8KB Flash entry-level variant with the same analog front-end for memory-constrained designs.
● STM32G031J6Y6 (STMicroelectronics): A comparable 32-bit ARM Cortex-M0+ MCU in similar QFN-20 package offering higher processing power with 32KB Flash for more compute-intensive applications.
FAQ
Q: What distinguishes the tinyAVR 2 series from tinyAVR 0/1 series?
A: The tinyAVR 2 series emphasizes analog performance with a 12-bit differential ADC with PGA and operational amplifier, targeting analog signal conditioning applications that the 0 and 1-series cannot address.
Q: What is the UPDI interface?
A: UPDI (Unified Program and Debug Interface) is Microchip's single-pin programming and debugging interface that replaces traditional SPI/JTAG programming, simplifying PCB layout and reducing pin count requirements.
Q: What is the maximum ADC sampling rate?
A: The 12-bit ADC achieves up to 115ksps in normal mode with differential channels and PGA enabled for high-precision measurements.
Alternative MCU Models
● ATtiny3224-MFR (Microchip Technology): A lower-density 16KB Flash version in QFN-20 package targeting cost-sensitive applications with reduced memory requirements.
● ATtiny1627-MUR (Microchip Technology): The tinyAVR 1-series counterpart with 16KB Flash and similar ADC features but without the operational amplifier for simpler analog applications.
● ATtiny827-MUR (Microchip Technology): An 8KB Flash entry-level variant with the same analog front-end for memory-constrained designs.
● STM32G031J6Y6 (STMicroelectronics): A comparable 32-bit ARM Cortex-M0+ MCU in similar QFN-20 package offering higher processing power with 32KB Flash for more compute-intensive applications.
