ATTINY24A-PU

Overview

The ATTINY24A-PU is an 8-bit AVR microcontroller featuring a RISC core with 2KB of in-system programmable Flash memory, 128 bytes of EEPROM, and 128 bytes of SRAM. It operates within a voltage range of 1.8V to 5.5V and supports clock frequencies up to 20MHz. The device includes two PWM channels, a 10-bit ADC, and a Universal Serial Interface (USI). It is housed in a 14-pin PDIP package and supports industrial temperature ranges.

Feature Summary

• High-performance 8-bit AVR architecture with most instructions executing in a single clock cycle
• Non-volatile memory segments including Flash, EEPROM, and internal SRAM with high endurance ratings
• Integrated peripheral features such as timers, counters, analog comparator, and watchdog timer
• Low power consumption with multiple operating modes including idle, ADC noise reduction, and power-down

Applications

• General purpose embedded control systems
• Battery powered devices requiring low power operation
• Simple communication interfaces using USI protocol
• Sensor interfacing applications utilizing the onboard ADC

Procurement Notes

Verify the specific suffix 'PU' confirms the 14-pin PDIP package and industrial temperature grade when sourcing. Ensure compatibility with existing PCB footprints designed for through-hole mounting. Confirm that the selected supplier provides genuine Microchip or Atmel products to guarantee parameter accuracy and long-term availability for production runs.

Selection Notes

Select this component for designs requiring a balance of processing capability and minimal pin count in a through-hole package. Consider the 20MHz maximum speed and 2KB program memory limits against application requirements. Evaluate the need for the specific USI interface versus other communication protocols supported by larger ATtiny variants if more complex connectivity is required.

Part Context

This part belongs to the ATtiny family of 8-bit microcontrollers produced by Microchip Technology, formerly Atmel. The series is known for its compact size, low power consumption, and ease of use in resource-constrained embedded applications. The ATTINY24A variant specifically offers 2KB of Flash memory, positioning it between smaller 1KB models and larger 4KB/8KB counterparts in terms of storage capacity.

Replacement Considerations

Direct replacements include ATTINY24A-MU for surface mount QFN packaging or ATTINY24A-SU for SOIC packaging. For legacy support, the non-'A' suffix version ATTINY24-10PU may be considered if lower speed grades are acceptable, though verification of electrical characteristics is required.