ATTINY202-SSF

Overview

The ATTINY202-SSF is an 8-bit AVR microcontroller from the tinyAVR 0-series, packaged in an 8-pin SOIC. It features a high-performance CPU capable of running at up to 20 MHz with single-cycle I/O access and a two-level interrupt controller. The device includes 2 KB of self-programmable Flash memory, 128 bytes of SRAM, and 64 bytes of EEPROM. Key peripherals include a 10-bit ADC, USART, SPI, TWI, TCA, TCB, RTC, CCL, and Analog Comparator. It operates within a voltage range of 1.8V to 5.5V and supports temperatures from -40°C to 105°C.

Feature Summary

• Supports Core Independent Peripherals (CIP) for offloading tasks from the CPU via Event System and SleepWalking.
• Features picoPower technology with multiple low-power sleep modes including Idle, Standby, and Power-down.
• Includes Configurable Custom Logic (CCL) with programmable look-up tables for custom logic implementation.
• Provides a Single Pin Unified Program Debug Interface (UPDI) for programming and debugging.

Applications

• Low-power sensor nodes
• Battery-operated devices
• General-purpose control applications

Procurement Notes

Verify the specific speed grade suffix (e.g., SSF indicates 0-20 MHz @ 4.5V – 5.5V) against your system's voltage requirements. Confirm package type is 8-SOIC. Check datasheet for absolute maximum ratings and operating temperature ranges (-40°C to 105°C). Ensure UPDI interface compatibility with your programmer.

Selection Notes

Select this model if you require 2KB Flash and 128B SRAM in an 8-pin package. Consider the ATTINY402 if more memory is needed. Verify that your application voltage falls within the 4.5V to 5.5V range required for the 20 MHz speed grade associated with the 'SSF' suffix. Compare power consumption figures in the electrical characteristics section for different clock speeds.

Part Context

This component belongs to Microchip's tinyAVR 0-series, which introduces Core Independent Peripherals to reduce CPU load. It is part of the ATtiny202/402 family, sharing architectural similarities but differing in memory sizes. The series targets cost-sensitive, low-pin-count applications requiring efficient peripheral handling without constant CPU intervention.

Replacement Considerations

Check for pin-compatible alternatives within the tinyAVR 0-series or legacy ATtiny families. Verify memory size and peripheral availability match requirements. Ensure the replacement supports the same UPDI interface or provides equivalent programming/debugging capabilities.

FAQ

What does the 'SSF' suffix indicate?

The 'SSF' suffix typically denotes the speed grade and package type. For the ATTINY202, it often corresponds to the 0-20 MHz speed grade operating at 4.5V to 5.5V in an 8-SOIC package.

Can the ATTINY202 operate at 20 MHz with a 3.3V supply?

No. According to the speed grades, the 20 MHz operation requires a supply voltage between 4.5V and 5.5V. Lower voltages support lower maximum frequencies (e.g., 10 MHz at 2.7V–5.5V).