ATTINY44A-PU

Overview

The ATTINY44A-PU is an 8-bit AVR microcontroller featuring a RISC core with up to 20 MHz operation. It integrates 4 KB of in-system programmable Flash, 256 bytes of EEPROM, and 256 bytes of SRAM. The device supports a supply voltage range of 1.8V to 5.5V and includes a 10-bit ADC with multiple channels. It utilizes a 14-pin PDIP package and operates within an industrial temperature range.

Feature Summary

• Advanced RISC architecture enabling single-clock-cycle instruction execution for high throughput
• Non-volatile memory system with high endurance ratings for Flash and EEPROM
• Integrated analog subsystem including a 10-bit ADC and on-chip temperature sensor
• Comprehensive peripheral set including timers, PWM channels, and serial interfaces

Applications

• Industrial control systems requiring robust I/O capabilities
• Battery-powered devices utilizing low-power sleep modes
• Sensor interface circuits leveraging integrated ADC and temperature measurement
• General-purpose embedded logic applications

Procurement Notes

Verify the specific suffix 'PU' confirms the 14-pin Plastic Dual In-line Package (PDIP) form factor. Confirm the operating temperature range matches industrial specifications (-40°C to +85°C). Ensure the voltage grade corresponds to the standard ATTINY44A variant rather than the V-series if higher frequency performance at lower voltages is required. Cross-reference RoHS compliance status with current manufacturer documentation.

Selection Notes

Select this component when a balance of processing speed and pin count is needed for compact designs. The ATTINY44A offers sufficient memory for moderate firmware complexity while maintaining low power consumption. Consider the PDIP package for prototyping or through-hole manufacturing requirements. Evaluate the 12 available I/O lines against system connectivity needs before choosing over variants with different pin counts.

Part Context

This device belongs to the ATtiny family of 8-bit AVR microcontrollers manufactured by Microchip Technology following its acquisition of Atmel. The ATTINY44A represents an enhanced version of the original ATtiny44, offering improved features such as extended voltage ranges and updated peripherals while maintaining software compatibility with existing codebases designed for the legacy series.

Replacement Considerations

The ATTINY44A-PU serves as a direct functional replacement for the ATtiny44-20PU. Designers may also consider the ATTINY84A-PU for increased program memory capacity within the same package footprint.