ATTINY1626-MFR

Overview

The ATtiny1626-MFR is an 8-bit microcontroller from the Microchip tinyAVR 2 family, featuring a 20-pin package with 18 general-purpose I/O pins. It integrates 16 KB of in-system self-programmable Flash memory, 2 KB of SRAM, and 256 B of EEPROM. The device operates at a maximum clock frequency of 20 MHz and supports a supply voltage range of 1.8 V to 5.5 V. Key peripherals include a 12-bit differential ADC with PGA, two USARTs, SPI, TWI, and an Event System for low-latency peripheral communication.

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) and up to 15 input channels
• Supports flexible inter-peripheral signaling via an integrated Event System
• Provides versatile connectivity with dual USARTs, SPI, and TWI interfaces

Applications

• Low-power embedded control systems
• Sensor interface modules requiring high-resolution analog conversion
• Industrial communication nodes using serial protocols
• Battery-operated devices utilizing multiple sleep modes

Procurement Notes

Verify the specific ordering suffix 'MFR' against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing board layouts by checking pin assignments for the 20-pin variant. Confirm that the required speed grades align with the intended operating voltage and environmental conditions.

Selection Notes

Select this component when vertical migration within the tinyAVR 2 family is required without code modification. Choose this model over the ATtiny1624 or ATtiny1627 based on the specific need for 18 I/O pins and the associated peripheral count available in the 20-pin configuration. Consider the 12-bit ADC resolution if higher precision is needed compared to older 10-bit architectures.

Part Context

This part belongs to the tinyAVR 2 family, which emphasizes low power consumption and advanced digital peripherals. It shares architectural similarities with the ATtiny1624 and ATtiny1627, allowing for horizontal migration between different pin counts while maintaining software compatibility across the series.

Replacement Considerations

Direct substitutes within the same family include the ATtiny1624 (14-pin) and ATtiny1627 (24-pin), provided pin count adjustments are acceptable. Verify that any replacement maintains the required 16 KB Flash and 20 MHz performance specifications.