ATTINY4313-MMH

Overview

The ATTINY4313-MMH is an 8-bit AVR microcontroller featuring a high-performance RISC architecture with up to 20 MIPS throughput at 20 MHz. It integrates 4K bytes of In-System Programmable Flash, 256 bytes of EEPROM, and 256 bytes of SRAM. The device includes 18 programmable I/O lines, two Timer/Counters, four PWM channels, a Universal Serial Interface (USI), and a full-duplex USART. Operating within a voltage range of 1.8V to 5.5V, it supports industrial temperatures from -40°C to +85°C and is housed in a 20-pad VQFN package.

Feature Summary

• Advanced RISC architecture executing most instructions in a single clock cycle for efficient processing.
• Non-volatile memory with high endurance specifications for Flash and EEPROM data retention.
• Comprehensive peripheral set including timers, PWM, analog comparator, and serial communication interfaces.
• Low-power operation with selectable Idle, Power-down, and Standby sleep modes.

Applications

• Embedded control systems requiring non-volatile data storage
• Battery-powered devices utilizing low-power consumption modes
• Industrial applications operating within extended temperature ranges
• Systems requiring on-chip debugging via debugWIRE interface

Procurement Notes

Verify the specific ordering suffix MMH corresponds to the 20-pad Very Thin Quad Flat No Lead Package (VQFN) with NiPdAu lead finish as defined in the official Microchip ordering information. Confirm that the speed grade matches the required operational frequency for the target supply voltage. Ensure compliance with RoHS directives and check for any specific revision notes regarding device errata before finalizing procurement specifications.

Selection Notes

Select this component when 4K bytes of program memory and 256 bytes of RAM are required, distinguishing it from the ATtiny2313A which offers smaller memory capacities. Consider the VQFN package for space-constrained designs requiring a thermally enhanced footprint. Evaluate the need for the specific industrial temperature range and the availability of the debugWIRE interface for development purposes against other available packages in the series.

Part Context

The ATTINY4313-MMH belongs to the ATtiny4313 family within the broader ATtiny2313A/4313 product line manufactured by Microchip Technology. This family shares a common core architecture and peripheral set, differing primarily in memory sizes. The MMH suffix specifically identifies the VQFN package variant, providing a compact solution compared to standard SOIC or PDIP options while maintaining identical electrical characteristics and pinout configurations.

Replacement Considerations

ATtiny4313-MMHR serves as the tape and reel equivalent of the same device. ATtiny4313-SU and ATtiny4313-PU offer alternative packaging formats (SOIC and PDIP) with identical functional specifications. Cross-referencing with ATtiny2313A variants requires verification of memory size differences.