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ATTINY426-SFR
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Product Detailed Parameters
- Description：IC MCU 8BIT 4KB FLASH 20SOIC
- 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：18
- 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：20-SOIC
- Package / Case：20-SOIC (0.295", 7.50mm Width)
- Grade：-
- Qualification：-
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Overview
The ATtiny426-SFR is an 8-bit microcontroller from the Microchip tinyAVR 2 family, featuring a 20-pin package. It includes 8 KB of Flash memory, 1 KB of SRAM, and 128 B of EEPROM. The device operates at a maximum clock frequency of 20 MHz with a supply voltage range of 1.8 V to 5.5 V. It provides 18 general-purpose I/O pins and supports industrial temperature ranges (-40°C to +85°C). Key peripherals include a 12-bit 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.
- Offers versatile communication interfaces including dual USART, SPI, and TWI.
Applications
- Industrial control systems requiring robust peripheral integration
- Battery-powered devices utilizing low-power architecture
- Sensor interface applications benefiting from high-resolution ADC
Procurement Notes
Verify the specific ordering suffix 'SFR' against official Microchip documentation to confirm the SOIC-20 package type and Tape & Reel carrier configuration. Ensure the selected variant matches the required operating temperature range and that all pinout compatibility requirements are met for the target PCB design.
Selection Notes
Select this component when vertical migration within the tinyAVR 2 family is desired without code modification. Consider the 20-pin form factor for designs needing more I/O than the 14-pin variants but less than the 24-pin options. Evaluate the 12-bit ADC performance if precise analog signal acquisition is critical for the application.
Part Context
This device belongs to the tinyAVR 2 family, which emphasizes low power consumption and advanced digital peripherals. The family allows for horizontal and vertical migration between different pin counts and memory sizes while maintaining feature compatibility across the series.
Replacement Considerations
ATtiny426-MUR
FAQ
What is the maximum operating frequency of the ATtiny426-SFR?
The ATtiny426-SFR can operate at a maximum frequency of 20 MHz.
Does the ATtiny426 support vertical migration within its family?
Yes, the device supports vertical migration without code modification as it is fully pin and feature compatible with other devices in the tinyAVR 2 family.
