ATTINY84A-SSFR

Overview

The ATTINY84A-SSFR is an 8-bit AVR microcontroller featuring 8 KB of in-system programmable Flash, 512 bytes of EEPROM, and 512 bytes of SRAM. It operates within a supply voltage range of 1.8 V to 5.5 V and supports clock frequencies up to 20 MHz at the upper voltage limit. The device includes a 10-bit ADC with eight single-ended channels and twelve differential pairs, two PWM-capable timers, and an on-chip analog comparator. It utilizes a 14-lead SOIC package and is rated for industrial temperatures from -40°C to +125°C.

Feature Summary

• Advanced RISC architecture executing most instructions in a single clock cycle
• Non-volatile memory segments with high endurance specifications
• Integrated peripheral set including ADC, timers, and universal serial interface
• Multiple software-selectable low-power sleep modes

Applications

• Industrial control systems requiring extended temperature operation
• Battery-powered devices utilizing low power consumption modes
• Sensor interfaces using the integrated analog-to-digital converter
• General-purpose embedded logic applications

Procurement Notes

Verify the specific speed grade suffix matches the required operating frequency for the target voltage. Confirm the 'F' lead finish designation aligns with assembly requirements. Ensure the tape and reel packaging format corresponds to automated placement equipment capabilities. Cross-reference the industrial temperature rating against environmental specifications.

Selection Notes

Select this component when 8 KB program memory and 12 general-purpose I/O lines are necessary. Choose the SOIC-14 package for surface mount compatibility where pin count constraints exist. Consider the 20 MHz maximum speed for timing-critical tasks. Verify that the 1.8 V minimum voltage meets system power rail availability.

Part Context

This part belongs to the ATtiny24A/44A/84A family, which shares a common core architecture and peripheral set differentiated primarily by memory sizes. The 'A' suffix indicates an enhanced version with extended temperature ranges compared to earlier iterations. The series targets cost-sensitive applications requiring efficient code execution and low standby currents.

Replacement Considerations

ATtiny84A-SSU serves as a non-tape-and-reel alternative in the same package. ATtiny84A-MU provides equivalent functionality in a QFN package. Verify pinout compatibility before substituting packages.