ATTINY12L-4SUR

Overview

The ATTINY12L-4SUR is an 8-bit AVR microcontroller featuring a 1K byte Flash program memory and 64 bytes of In-System Programmable EEPROM. It operates within a voltage range of 2.7 V to 5.5 V with a maximum frequency of 4 MHz. The device includes 32 general-purpose working registers, six I/O lines, an 8-bit Timer/Counter, and an on-chip Analog Comparator. It utilizes an internal calibrated RC oscillator and supports low-power Idle and Power-down modes.

Feature Summary

• AVR RISC architecture delivering up to 1 MIPS throughput per MHz
• In-system programmable via SPI port for Flash and EEPROM
• Programmable Watchdog Timer with integrated oscillator
• Wake-up capability on pin change events

Applications

• Embedded control applications requiring low power consumption
• Battery-powered devices utilizing power-saving modes
• Simple sensor interfaces using analog comparator functions
• Basic logic control systems with limited I/O requirements

Procurement Notes

Verify the component matches the specific industrial temperature grade (-40°C to 85°C) and speed rating (4 MHz). Confirm the package type corresponds to the 8-SOIC specification. Ensure the ordering code suffix aligns with the required RoHS compliance status as defined in the manufacturer's official documentation.

Selection Notes

Select this component when a balance of moderate processing speed and low power consumption is required. It is suitable for designs needing non-volatile data storage via EEPROM without external components. Consider the limited I/O count and absence of advanced communication peripherals like UART or USB when defining system requirements.

Part Context

This part belongs to the ATtiny11/12 family of 8-bit microcontrollers manufactured by Microchip Technology. It shares architectural similarities with the ATtiny11 but adds EEPROM and SPI programming capabilities. The 'L' designation indicates a lower voltage operating range compared to standard variants, while '4' specifies the 4 MHz speed grade.

Replacement Considerations

Direct substitutes include other ATtiny12 variants such as ATTINY12-8PI or ATTINY12V-1SU, provided voltage and speed constraints are met. Cross-family replacements from the same manufacturer may require firmware adaptation due to peripheral differences.