ATTINY2313A-MMHR

Overview

The ATTINY2313A-MMHR is an 8-bit AVR microcontroller featuring a 20-pad VQFN package. It includes 2 kB of In-System Programmable Flash, 128 bytes of EEPROM, and 128 bytes of SRAM. The device supports a maximum clock frequency of 20 MHz with an operating voltage range of 1.8 V to 5.5 V. It provides 18 programmable I/O lines and operates within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Advanced RISC architecture achieving up to 20 MIPS throughput at 20 MHz
• In-system self-programmable Flash memory with high endurance
• Full-duplex USART and Universal Serial Interface (USI) for communication
• On-chip debugging via debugWIRE interface

Applications

• Embedded control systems requiring low power consumption
• Industrial applications operating in extreme temperatures
• Battery-powered devices utilizing multiple sleep modes
• General-purpose digital logic interfacing

Procurement Notes

Verify the component status before design finalization as it may be marked Not Recommended for New Designs. Confirm the specific ordering suffix matches the required package type and lead finish specifications. Ensure compatibility with existing PCB footprints for the VQFN form factor. Check for RoHS compliance documentation if required by regional regulations.

Selection Notes

Select this variant when a compact VQFN footprint is necessary for space-constrained designs. Consider the 20 MHz speed grade relative to the supply voltage requirements. Evaluate the 18 available I/O lines against peripheral needs such as timers and serial interfaces. Compare memory sizes with other ATtiny series members if larger storage is anticipated.

Part Context

This component belongs to the ATtiny2313A family, which shares architectural similarities with the ATtiny4313 but differs in memory capacity. The MMHR suffix indicates a tape and reel packaging format with NiPdAu lead finish. It utilizes the standard 20-pin pinout configuration common across PDIP, SOIC, and MLF/VQFN packages in this series.

Replacement Considerations

ATtiny2313A-MMH serves as a direct substitute differing only in packaging format.