ATTINY261-20MU

Overview

The ATTINY261-20MU is an 8-bit AVR microcontroller in a 32-pad MLF package. It features 2K bytes of In-System Programmable Flash, 128 bytes of EEPROM, and 128 bytes of SRAM. The device provides 16 programmable I/O lines and operates at speeds up to 20 MHz when powered between 4.5V and 5.5V. Key peripherals include an 11-channel 10-bit ADC, a Universal Serial Interface (USI), and multiple timer/counters.

Feature Summary

• Advanced RISC architecture with single-cycle execution for high throughput
• Non-volatile memory with high endurance for program and data storage
• Integrated analog-to-digital converter with differential channel pairs
• Multiple low-power operating modes including Idle and Power-Down

Applications

• Battery-powered embedded systems requiring low power consumption
• Industrial control applications utilizing the industrial temperature range
• Sensor interface designs leveraging the on-chip ADC and analog comparator
• Communication nodes using the Universal Serial Interface

Procurement Notes

Verify that the specific suffix 'MU' corresponds to the 32-pad MLF package variant. Confirm the speed grade matches the required operational frequency for the target voltage range. Ensure the component meets the necessary environmental specifications for the intended deployment environment.

Selection Notes

Select this model for designs requiring a compact MLF footprint with integrated analog capabilities. Consider the 20MHz speed limit at higher voltages when optimizing system performance. Evaluate the 16 I/O lines against peripheral requirements before choosing alternative pin counts within the ATtiny family.

Part Context

This component belongs to the ATtiny261/461/861 series of 8-bit AVR microcontrollers. It shares architectural similarities with other devices in the line but is distinguished by its specific 2K Flash memory size and 32-pad MLF packaging option. The series supports various packages including PDIP, SOIC, and QFN.

Replacement Considerations

ATtiny461-20MU offers increased memory capacity within the same package. ATtiny861-20MU provides further memory expansion while maintaining identical pinouts and core functionality.