ATTINY814-SSFR

Overview

The ATTINY814-SSFR is an 8-bit AVR microcontroller from the tinyAVR 1-Series family, manufactured by Microchip Technology. It features 8KB of in-system self-programmable Flash memory, 512 bytes of SRAM, and 128 bytes of EEPROM. The device operates at a maximum clock frequency of 20MHz and includes a 10-bit Analog-to-Digital Converter (ADC) with 10 channels, an 8-bit Digital-to-Analog Converter (DAC), and 12 programmable I/O lines. It supports interfaces including USART, SPI, and TWI, housed in a 14-pin SOIC package.

Feature Summary

• Integrates Core Independent Peripherals (CIPs) such as TCA, TCB, TCD, and RTC to offload CPU tasks and reduce power consumption.
• Supports capacitive touch sensing via the integrated Peripheral Touch Controller (PTC) with driven shield capabilities.
• Features a Single Pin Unified Program Debug Interface (UPDI) for programming and debugging.
• Includes Configurable Custom Logic (CCL) with programmable lookup tables for custom logic implementation.

Applications

• Battery-powered sensor nodes utilizing low-power sleep modes
• Capacitive touch interface controllers for buttons or sliders
• Industrial control systems requiring precise timing and event handling
• Smart home automation devices

Procurement Notes

Verify the specific temperature grade and suffix requirements against your design specifications before ordering. Confirm that the 14-pin SOIC package dimensions match your PCB footprint constraints. Ensure compatibility with your existing development tools and debuggers supporting the UPDI interface. Check for any RoHS compliance documentation if required by your manufacturing standards.

Selection Notes

Select this component when 8KB of program memory and 512 bytes of RAM are sufficient for the application. Consider the 20MHz operating speed and 10-bit ADC resolution for signal processing needs. Evaluate the availability of the -SSFR suffix variant for tape and reel packaging if automated assembly is planned. Compare against ATtiny414 or ATtiny214 if lower memory capacity is acceptable.

Part Context

This part belongs to the Microchip tinyAVR 1-Series family, which emphasizes low power consumption and high performance through Core Independent Peripherals. The series shares architectural similarities with other members like the ATtiny414 and ATtiny214, differing primarily in memory sizes and peripheral configurations. It is designed for applications requiring efficient code execution and extended battery life.

Replacement Considerations

ATtiny414-SSFR offers identical pinout and peripherals but with reduced memory (4KB Flash, 256B SRAM). ATtiny214-SSFR provides further reduced memory (2KB Flash, 128B SRAM). For higher memory requirements, consider the ATtiny816 or ATtiny817 series, though pinouts may differ.