ATTINY2313-20SU

Overview

The ATTINY2313-20SU is an 8-bit AVR microcontroller featuring 2K bytes of In-System Programmable Flash, 128 bytes EEPROM, and 128 bytes SRAM. It operates at speeds up to 20 MHz with a supply voltage range of 2.7V to 5.5V. The device includes 18 programmable I/O lines, two Timer/Counters, a full-duplex USART, USI, and an on-chip analog comparator.

Feature Summary

• AVR RISC architecture delivering up to 20 MIPS throughput at maximum frequency
• In-system self-programmable Flash memory with data security programming locks
• Full-duplex USART and Universal Serial Interface (USI) for serial communication
• On-chip debugging via debugWIRE interface and SPI port programming

Applications

• Embedded control systems requiring low-power operation
• Serial communication interfaces using USART or USI protocols
• Applications utilizing external and internal interrupt sources
• Systems employing programmable Watchdog Timers for reliability

Procurement Notes

Verify the specific speed grade suffix '20' corresponds to the required 20 MHz performance at the target operating voltage. Confirm the 'SU' suffix indicates the 20-pin SOIC package type. Ensure the component meets RoHS compliance requirements if applicable to your manufacturing process.

Selection Notes

Select this model when a 20 MHz clock speed is necessary within the 2.7V to 5.5V voltage range. Consider the 2K Flash capacity and 18 I/O lines against project requirements. Evaluate the SOIC package dimensions for PCB layout compatibility compared to PDIP or MLF alternatives.

Part Context

This component belongs to the ATtiny2313 family of 8-bit AVR microcontrollers. It shares core architectural features with variants like the ATTINY2313A and ATTINY4313, differing primarily in memory size and specific speed grades. The device utilizes high-density non-volatile memory technology for program and data storage.

Replacement Considerations

ATTINY2313-20PU offers identical electrical specifications in a PDIP package. ATTINY2313-20SUR provides the same functionality in a tape-and-reel SOIC format. ATTINY2313A-20SU is a newer revision with potential minor feature updates but maintains pin compatibility.