ATTINY2313-20SJ

Overview

The ATtiny2313-20SJ is an 8-bit AVR microcontroller manufactured by Microchip Technology, housed in a 20-lead Plastic Gull Wing Small Outline (SOIC) package. It features 2K bytes of In-System Programmable Flash, 128 bytes of EEPROM, and 128 bytes of SRAM. The device operates at speeds up to 20 MHz with a supply voltage range of 2.7V to 5.5V. Key peripherals include two Timer/Counters, four PWM channels, a full-duplex USART, a Universal Serial Interface (USI), and an on-chip Analog Comparator.

Feature Summary

• AVR RISC architecture delivering high performance with most instructions executing in a single clock cycle.
• Supports low-power operation through selectable Idle, Power-down, and Standby modes.
• Includes debugWIRE for single-wire on-chip debugging and SPI-based in-system programming.
• Features programmable Brown-out Detection and an enhanced Power-on Reset circuit.

Applications

• Embedded control systems requiring low power consumption
• Battery-powered devices utilizing extended standby capabilities
• Simple serial communication interfaces using USART or USI
• Basic automation tasks involving timer and PWM generation

Procurement Notes

Verify the specific suffix 'SJ' corresponds to the 20MHz speed grade and SOIC package as defined in the official ordering information. Confirm that the required operating voltage aligns with the 2.7V to 5.5V specification for this speed variant. Check for any relevant errata regarding EEPROM read values or watchdog timer behavior if applicable to your design requirements.

Selection Notes

Select this component when a cost-effective 8-bit solution with sufficient I/O lines and standard serial interfaces is needed. Ensure the application does not require an ADC, as this model lacks one. Consider the package constraints of the 20-lead SOIC form factor during PCB layout. Verify that the 2K Flash memory capacity meets the firmware size requirements.

Part Context

This part belongs to the ATtiny2313 family within the AVR microcontroller portfolio. It shares architectural similarities with other members like the ATtiny4313 but differs in memory sizes and specific peripheral configurations. The '20SJ' designation specifically identifies the industrial temperature range, 20MHz speed grade, and SOIC packaging.

Replacement Considerations

ATtiny2313-20SI serves as a direct pin-compatible alternative within the same speed and package specifications. For designs requiring increased memory, the ATtiny4313 series offers similar functionality with larger Flash and EEPROM capacities while maintaining compatible pinouts.