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ATTINY3227-MU
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Product Detailed Parameters
- Description：IC MCU 8BIT 32KB FLASH 24VQFN
- Series：tinyAVR® 2
- Mfr：Microchip Technology
- Package：Tray
- Core Processor：AVR
- Core Size：8-Bit
- Speed：20MHz
- Connectivity：I2C, IrDA, SPI, UART/USART
- Peripherals：Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O：22
- Program Memory Size：32KB (32K x 8)
- Program Memory Type：FLASH
- EEPROM Size：256 x 8
- RAM Size：3K x 8
- Voltage - Supply (Vcc/Vdd)：1.8V ~ 5.5V
- Data Converters：A/D 15x12b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：24-VQFN (4x4)
- Package / Case：24-VFQFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The ATtiny3227-MU is a member of the tinyAVR® 2 family, featuring an 8-bit AVR CPU with hardware multiplier running at up to 20 MHz. It provides 32 KB Flash, 3 KB SRAM, and 256B EEPROM in a 24-pin VQFN package. The device includes a 12-bit differential ADC with PGA, two USARTs, SPI, TWI, four CCL LUTs, one TCA, two TCBs, and an RTC. Operating voltage ranges from 1.8V to 5.5V.
Feature Summary
- Features a high-performance low-power AVR CPU with single-cycle I/O access and vectored interrupts.
- Includes advanced analog peripherals such as a 12-bit differential ADC with Programmable Gain Amplifier (PGA).
- Supports flexible inter-peripheral signaling through a dedicated Event System.
- Offers Configurable Custom Logic (CCL) with programmable Look-Up Tables for logic implementation.
Applications
- Industrial control systems requiring robust peripheral integration.
- Battery-powered devices utilizing low-power sleep modes.
- Sensor interfaces leveraging the high-resolution differential ADC.
- Communication nodes using dual USART or TWI/SPI interfaces.
Procurement Notes
Verify the specific ordering suffix 'MU' corresponds to the VQFN package type and industrial temperature range (-40°C to +85°C). Confirm that the standard variant meets application requirements, noting that automotive-qualified VAO variants exist with potentially different packaging and specifications. Ensure compatibility with existing design tools and programming interfaces.
Selection Notes
Select this model when 24 pins and 32 KB Flash are required within the tinyAVR 2 family. It supports vertical migration without code modification to other family members. Consider the 12-bit ADC and CCL features if complex signal processing or custom logic is needed. Verify speed grades against operating voltage constraints for the target environment.
Part Context
This component belongs to the tinyAVR® 2 family, which emphasizes low power and high performance. The family allows for pin-compatible vertical migration, simplifying upgrades from smaller memory variants. The ATtiny3227 represents the highest memory configuration in the 24-pin form factor, offering extensive peripheral resources for demanding embedded applications.
Replacement Considerations
ATtiny3226-MU: Offers identical functionality but with reduced pin count and feature set.
FAQ
What is the maximum operating frequency of the ATtiny3227?
The device runs at up to 20 MHz.
Does the ATtiny3227 support vertical migration?
Yes, it is fully pin and feature compatible with other devices in the tinyAVR 2 family for vertical migration without code modification.
