ATTINY40-MMHR

Overview

The ATtiny40-MMHR is an 8-bit AVR microcontroller featuring 4K bytes of In-System Programmable Flash, 256 bytes of SRAM, and 18 programmable I/O lines. It operates at speeds up to 12 MHz within a voltage range of 1.8V to 5.5V. The device includes a 10-bit ADC with 12 single-ended channels, two timer/counters, and multiple communication interfaces including SPI and TWI. It supports industrial temperature ranges (-40°C to +85°C) and offers four software-selectable power-saving modes.

Feature Summary

• Advanced RISC architecture achieving up to 12 MIPS throughput at 12 MHz
• Integrated 10-bit Analog-to-Digital Converter with 12 single-ended channels
• Dual Timer/Counter units supporting PWM generation and capture functions
• Master/Slave SPI and Slave TWI serial communication interfaces

Applications

• Battery-powered embedded systems requiring low active current consumption
• Industrial control applications operating in extended temperature environments
• Sensor interface modules utilizing the internal analog comparator and ADC
• Communication nodes using SPI or TWI protocols for data exchange

Procurement Notes

Verify that the ordering suffix 'R' corresponds to tape and reel packaging as specified in the manufacturer's documentation. Confirm the lead finish is NiPdAu due to the 'H' suffix. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the specific speed grade and package dimensions against your PCB design constraints before finalizing procurement.

Selection Notes

Select this model when a compact 8-bit solution with integrated analog capabilities is required. The VQFN package provides a thermally enhanced footprint suitable for space-constrained designs. Consider the available power modes if battery life is a critical system parameter. Verify that the 12MHz maximum frequency aligns with the timing requirements of the target application logic.

Part Context

This component belongs to the tinyAVR family of 8-bit microcontrollers manufactured by Microchip Technology. It utilizes high-density non-volatile memory technology allowing for in-system programming. The device integrates a calibrated internal oscillator and supports external interrupts, making it suitable for standalone control tasks without requiring extensive external support circuitry.

Replacement Considerations

ATtiny40-MMH: Identical specifications provided in different packaging format.