ATTINY24-20MU

Overview

The ATTINY24-20MU is an 8-bit AVR microcontroller featuring 2K bytes of In-System Programmable Flash, 128 bytes of EEPROM, and 128 bytes of SRAM. It operates at a maximum clock frequency of 20 MHz with a supply voltage range of 2.7V to 5.5V. The device includes one 8-bit and one 16-bit Timer/Counter with PWM channels, a 10-bit ADC with eight single-ended channels, and a Universal Serial Interface. It utilizes a 20-pad MLF package.

Feature Summary

• Advanced RISC architecture executing most instructions in a single clock cycle
• In-system programmable non-volatile memory for program and data storage
• Integrated analog-to-digital converter with programmable gain options
• Multiple software-selectable power-saving operational modes

Applications

• Embedded control systems requiring low-power operation
• Sensor interface applications utilizing the integrated ADC
• General-purpose I/O expansion using available timer and serial interfaces

Procurement Notes

Verify the specific ordering code against the manufacturer's official documentation to ensure compatibility with the required speed grade and voltage range. Confirm that the MLF package variant matches the intended PCB footprint and thermal requirements. Cross-reference the revision level to identify any known errata or workaround conditions relevant to the production batch.

Selection Notes

Select this component when a compact 8-bit solution with moderate flash capacity is required. Ensure the design accommodates the 2.7V to 5.5V operating range if V-series variants are not utilized. Consider the pin count and peripheral availability relative to system complexity. Verify that the industrial temperature range meets environmental specifications.

Part Context

This device belongs to the ATtiny series of 8-bit microcontrollers manufactured by Microchip Technology. It shares architectural similarities with other members like the ATtiny44 and ATtiny84, differing primarily in memory sizes. The series is designed for cost-sensitive embedded applications requiring efficient processing within a small physical footprint.

Replacement Considerations

Compatible substitutes include ATTINY44-20MU and ATTINY84-20MU from the same family. These alternatives offer identical pinouts and core functionality but provide increased memory capacities.