ATTINY84A-SSF

Overview

The ATTINY84A-SSF 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 at a maximum clock frequency of 20 MHz with a supply voltage range of 1.8 V to 5.5 V. The device includes twelve programmable I/O lines, an 8-channel 10-bit ADC, two timer/counters with PWM channels, and a Universal Serial Interface. It is housed in a 14-lead SOIC package and supports industrial temperature ranges up to +125°C.

Feature Summary

• Advanced RISC architecture executing most instructions in a single clock cycle for high throughput efficiency.
• Non-volatile memory segments including self-programmable Flash and EEPROM with high endurance ratings.
• Integrated peripheral features such as an analog comparator, programmable watchdog timer, and on-chip temperature sensor.
• Multiple low-power operating modes including Idle, ADC Noise Reduction, Standby, and Power-down.

Applications

• In-system programming via SPI interface
• On-chip debug system support
• Industrial temperature environment operation

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type, lead finish, and temperature grade. Ensure the component matches the required speed grade and voltage specifications for the target application. Cross-reference datasheet revision numbers to validate feature availability and electrical characteristics before procurement.

Selection Notes

Select this model when 8 KB of program memory and 512 bytes of data storage are sufficient for the application requirements. Consider the 14-pin SOIC package for surface mount assembly constraints. Verify that the 20 MHz speed grade aligns with the power consumption profile needed at the operating voltage. Confirm compatibility with existing development tools and debug interfaces.

Part Context

This component belongs to the ATtiny24A/44A/84A family of low-power CMOS 8-bit microcontrollers based on the AVR enhanced RISC architecture. The family shares common core features but differs in memory sizes and pin counts. The ATtiny84A variant specifically provides the balance of 8 KB Flash and 12 I/O lines suitable for moderately complex embedded control tasks.

Replacement Considerations

ATtiny84A-SSU

FAQ

What is the maximum operating temperature for the ATTINY84A-SSF?

The ATTINY84A-SSF is rated for an industrial temperature range extending up to +125°C.

How many general purpose I/O lines does the ATTINY84A provide?

The device provides twelve programmable I/O lines distributed across Port A and Port B.

Is the ATTINY84A-SSF RoHS compliant?

Yes, all packages for this device are Pb-free, halide-free, and fully green, complying with the European directive for Restriction of Hazardous Substances (RoHS).