ATTINY1614-SSF

Overview

The ATTINY1614-SSF is an 8-bit microcontroller from Microchip Technology's tinyAVR 1-series, housed in a 14-pin SOIC package. It features an AVR CPU running at up to 20 MHz with a two-cycle hardware multiplier. Memory resources include 16 KB of self-programmable Flash, 2 KB of SRAM, and 256 bytes of EEPROM. The device supports single-pin UPDI programming and includes peripherals such as TCA, TCB, TCD timers, USART, SPI, TWI, ADCs, DACs, and a Peripheral Touch Controller.

Feature Summary

• Supports single-pin Unified Program and Debug Interface (UPDI) for simplified programming and debugging without complex fuse configurations.
• Integrates Core Independent Peripherals (CIPs) including the Peripheral Touch Controller (PTC) for capacitive touch interfaces with Driven Shield+ technology.
• Features an Event System (EVSYS) that enables CPU-independent inter-peripheral signaling for predictable system operation.

Applications

• Low-power embedded control systems requiring efficient I/O access
• Applications utilizing capacitive touch interfaces via the integrated PTC
• Systems needing precise timing through dedicated timer/counters like TCA and RTC

Procurement Notes

Verify the specific suffix 'SSF' against official Microchip documentation to confirm exact temperature range and speed grade variants. Ensure compatibility with existing design constraints regarding the 14-pin SOIC package dimensions and electrical specifications before finalizing procurement.

Selection Notes

Select this component when a balance of moderate memory capacity and rich peripheral integration is required within a compact 14-pin form factor. Consider the UPDI interface for streamlined development workflows and evaluate the availability of internal oscillators if external clock components are to be minimized.

Part Context

This part belongs to the tinyAVR 1-series family, which introduces modern architectural improvements over previous generations. It shares core functionalities with other members like the ATtiny1616 and ATtiny1617, differing primarily in pin counts and specific package options while maintaining consistent software compatibility.

Replacement Considerations

Direct replacements within the same series include ATtiny1616 and ATtiny1617, provided pinout differences are accommodated. Verify that alternative packages or speed grades meet the specific operational requirements of the target application.

FAQ

What programming interface does the ATTINY1614-SSF use?

It utilizes a single-pin Unified Program and Debug Interface (UPDI), eliminating the need for traditional ISP connections and multiple pins for programming.

Does the device support capacitive touch sensing?

Yes, it integrates a Peripheral Touch Controller (PTC) that supports capacitive touch buttons, sliders, wheels, and surfaces with noise handling features.

How many general-purpose I/O lines are available?

The 14-pin variant provides up to 12 programmable I/O lines, depending on the specific pin multiplexing configuration used for other functions.