ATTINY1614-SSFR

Overview

The ATtiny1614-SSFR is an 8-bit microcontroller from the tinyAVR 1-series, utilizing the AVR processor core with a hardware multiplier. It features 16 KB of in-system self-programmable Flash memory, 2 KB of SRAM, and 256 bytes of EEPROM. The device operates at clock frequencies up to 20 MHz and supports a supply voltage range of 1.8 V to 5.5 V. It includes two 10-bit ADCs, three 8-bit DACs, and multiple timer/counters including TCA, TCB, TCD, and RTC. Communication interfaces include USART, SPI, and TWI. The component is housed in a 14-pin SOIC package.

Feature Summary

• Integrated Peripheral Touch Controller (PTC) supporting capacitive touch buttons, sliders, wheels, and 2D surfaces with Driven Shield+ technology for improved noise handling.
• Configurable Custom Logic (CCL) allows for flexible logic implementation using programmable look-up tables without CPU intervention.
• Event System (EVSYS) enables predictable inter-peripheral signaling independent of the CPU, enhancing system efficiency.
• Includes Core Independent Peripherals (CIPs) such as the Real-Time Counter (RTC) and Timer/Counter Type D (TCD) optimized for control applications.

Applications

• Embedded systems requiring capacitive touch user interfaces
• General-purpose embedded control applications
• Battery-powered devices due to low-power architecture and sleep modes
• Industrial control systems utilizing configurable logic and event-driven operations

Procurement Notes

Verify the specific suffix 'SSFR' corresponds to the 14-pin SOIC package and tape-and-reel packaging format. Confirm the temperature grade matches the required operational environment, as the series supports -40°C to 105°C and -40°C to 125°C ranges. Ensure compatibility with the Single-pin Unified Program and Debug Interface (UPDI) for development and programming needs.

Selection Notes

Select this component when 16 KB of Flash and 2 KB of SRAM are sufficient for the application code and data storage requirements. Consider the ATtiny1614-SSFR for designs needing integrated analog features like dual 10-bit ADCs and multiple DACs within a compact 14-pin footprint. Evaluate the need for the Peripheral Touch Controller if capacitive sensing is required, distinguishing it from variants lacking PTC support.

Part Context

The ATtiny1614 belongs to the tinyAVR 1-series family, which shares architectural similarities with other members like the ATtiny1616 and ATtiny1617. These microcontrollers are designed for cost-sensitive and space-constrained applications, offering a balance of performance and power efficiency through the AVR RISC core and advanced peripheral integration.

Replacement Considerations

Direct pin-to-pin replacements within the same package may include other members of the tinyAVR 1-series such as the ATtiny1616 or ATtiny1617, provided memory sizes and peripheral availability meet the design specifications. Verify that the alternative part number supports the required speed grades and temperature ranges.