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ATTINY427-MFR
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Product Detailed Parameters
- Description：IC MCU 8BIT 4KB FLASH 24VQFN
- Series：tinyAVR® 2
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Core Processor：AVR
- Core Size：8-Bit
- Speed：20MHz
- Connectivity：I2C, SPI, UART/USART
- Peripherals：Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O：22
- Program Memory Size：4KB (4K x 8)
- Program Memory Type：FLASH
- EEPROM Size：128 x 8
- RAM Size：512 x 8
- Voltage - Supply (Vcc/Vdd)：1.8V ~ 5.5V
- Data Converters：A/D 15x12b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 125°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 ATtiny427-MFR is an 8-bit microcontroller from the Microchip tinyAVR 2 family, featuring a 20-pin VQFN package. It integrates 4 KB of Flash memory, 512 bytes of SRAM, and 128 bytes of EEPROM. The device operates at a maximum clock frequency of 20 MHz with a supply voltage range of 1.8V to 5.5V. Key peripherals include a 12-bit differential ADC with PGA, two USARTs, SPI, TWI, and an Event System.
Feature Summary
- Features a high-performance AVR CPU with hardware multiplier running up to 20 MHz.
- Includes a 12-bit differential ADC with Programmable Gain Amplifier (PGA) for accurate analog conversion.
- Supports flexible inter-peripheral signaling via an integrated Event System.
- Provides versatile communication interfaces including dual USART, SPI, and TWI.
Applications
- Industrial control systems requiring low-power operation
- Sensor nodes utilizing differential ADC inputs
- Battery-powered devices with extended temperature requirements
Procurement Notes
Verify the specific ordering suffix 'MFR' corresponds to the Tape & Reel carrier type as defined in the datasheet nomenclature. Confirm that the package variant matches the required 20-pin VQFN form factor. Ensure the temperature grade aligns with the intended operational environment specifications.
Selection Notes
Select this component when vertical migration within the tinyAVR 2 family is required without code modification. Choose this model for applications needing 22 programmable I/O pins and a 12-bit ADC. Consider this part for designs requiring single-pin UPDI programming and debug capabilities.
Part Context
This device belongs to the tinyAVR 2 family, which offers horizontal and vertical migration paths. The ATtiny427 provides 4 KB Flash and 20 pins, positioned between the 14-pin ATtiny424 and the 24-pin ATtiny426 in terms of pin count and peripheral availability.
Replacement Considerations
ATtiny426-MFR
FAQ
What is the maximum operating frequency of the ATtiny427?
The ATtiny427 runs at up to 20 MHz.
Does the ATtiny427 support differential ADC inputs?
Yes, it includes a 12-bit differential Analog-to-Digital Converter with a Programmable Gain Amplifier.
