ATTINY44A-CCU

Overview

The ATTINY44A-CCU is an 8-bit AVR microcontroller featuring a high-performance RISC architecture with 120 instructions, most executing in a single clock cycle. It includes 4KB of in-system programmable Flash memory, 256 bytes of EEPROM, and 256 bytes of SRAM. The device operates at speeds up to 20 MHz and supports a supply voltage range of 1.8V to 5.5V. Key peripherals include two timer/counters with PWM channels, a 10-bit ADC with multiple channel configurations, an analog comparator, and a universal serial interface. It offers debugWIRE debugging capabilities and various low-power sleep modes.

Feature Summary

• Advanced RISC architecture with fully static operation and 32 general-purpose working registers
• Non-volatile memory segments with high endurance for Flash and EEPROM data retention
• Integrated peripheral set including timers, PWM, ADC, and analog comparator
• On-chip debug system and in-system programming via SPI port

Applications

• Battery-powered embedded systems requiring low power consumption
• Industrial control applications utilizing the analog comparator and timers
• Sensor interfaces leveraging the multi-channel ADC capabilities
• General-purpose I/O expansion using the universal serial interface

Procurement Notes

Verify the specific suffix 'CCU' against official Microchip documentation to confirm package type and temperature grade, as standard listings often use 'PU', 'SSU', or 'MF'. Ensure the component matches the required operating voltage and speed grade specifications for your design. Cross-reference the datasheet revision date to confirm feature availability and electrical characteristics.

Selection Notes

Select this component when a balance of processing power and low power consumption is required for 8-bit applications. Consider the available I/O lines and peripheral count relative to system requirements. Evaluate the operating voltage range against the power supply constraints. Verify compatibility with existing development tools such as debugWIRE programmers.

Part Context

The ATTINY44A-CCU belongs to the ATtiny family of 8-bit AVR microcontrollers produced by Microchip Technology (formerly Atmel). This series is designed for cost-sensitive applications needing efficient code execution and flexible peripheral integration. The device shares architectural similarities with other members like the ATtiny24 and ATtiny84, differing primarily in memory sizes and pin counts.

Replacement Considerations

Compatible substitutes within the same family include the ATtiny44A-MF and ATtiny44A-MMH, provided the package dimensions are compatible. Verify pinout compatibility before substitution. Other AVR devices may require software adaptation due to register differences.