ATTINY11L-2SC Equivalent & Substitute Parts

Part Overview

The ATTINY11L-2SC is an 8-bit AVR microcontroller from Microchip Technology designed for embedded applications requiring minimal program memory and I/O capabilities. This device operates at 2MHz with 1KB of FLASH memory and is housed in an 8-SOIC surface mount package. The ATTINY11L-2SC is classified as obsolete, making identification of functionally compatible alternatives essential for ongoing system support and new design implementations.

Substiute Parts

ATTINY11L-2SC

Microchip TechnologyIn Stock: 1407ATTINY11L-2SC Datasheet

Current PartRFQ

ATTINY13-20SU

Microchip TechnologyIn Stock: 2252ATTINY13-20SU Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATTINY11L-2SC is determined by the following critical parameters:

Core Architecture Compatibility: Both the main part and substitute must utilize the AVR core processor architecture to ensure instruction set compatibility and firmware portability.

Package Compatibility: The 8-SOIC surface mount package is mandatory for direct board-level replacement without redesign of PCB footprints and assembly processes.

Memory Configuration: Program memory size of 1KB (512 x 16) FLASH is the baseline requirement for code storage capacity.

I/O Pin Count: Six I/O pins define the signal interface capability and must be maintained for circuit integration.

Supply Voltage Range: The 2.7V to 5.5V operating range establishes compatibility with existing power distribution systems.

The ATTINY13-20SU meets all these substitution criteria while offering enhanced performance characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The ATTINY13-20SU is a direct functional substitute for the ATTINY11L-2SC based on matching core architecture, memory configuration, I/O count, supply voltage range, and identical package geometry. The substitute part maintains backward compatibility with existing PCB designs and firmware implementations.

The ATTINY13-20SU offers improved product lifecycle status as an active component, ensuring long-term availability and supply chain stability compared to the obsolete ATTINY11L-2SC. The substitute part achieves ROHS3 compliance, meeting current environmental and regulatory requirements.

The ATTINY13-20SU provides extended operating temperature range (-40°C to 85°C) compared to the main part (0°C to 70°C), enabling deployment in broader environmental conditions. The substitute part operates at 20MHz versus 2MHz, delivering tenfold performance improvement for timing-critical applications while maintaining full backward compatibility with lower-speed firmware implementations.

Frequently Asked Questions (FAQ)

Q: Can the ATTINY13-20SU directly replace the ATTINY11L-2SC without PCB modifications?

A: Yes. Both parts use identical 8-SOIC package geometry with matching pin assignments and electrical characteristics. Direct board-level substitution is possible without PCB redesign.

Q: Are firmware implementations for the ATTINY11L-2SC compatible with the ATTINY13-20SU?

A: Yes. Both devices utilize the AVR core processor architecture and identical instruction set. Existing firmware requires no modification for functional operation on the substitute part.

Q: What are the key differences between these parts?

A: The ATTINY13-20SU operates at 20MHz compared to 2MHz on the ATTINY11L-2SC, providing tenfold speed improvement. The substitute part includes additional peripherals (Brown-out Detect/Reset, POR, PWM), EEPROM (64 x 8), RAM (64 x 8), and A/D converter (4x10b). Operating temperature range extends to -40°C to 85°C. The ATTINY13-20SU is ROHS3 compliant and maintains active product status.

Q: Is the supply voltage range identical between both parts?

A: Yes. Both the ATTINY11L-2SC and ATTINY13-20SU operate within the 2.7V to 5.5V supply voltage range, ensuring compatibility with existing power distribution designs.

Q: What is the impact of the higher clock speed on power consumption?

A: The ATTINY13-20SU operates at 20MHz versus 2MHz. Power consumption scales with clock frequency; however, the substitute part enables faster task completion and potential reduction in overall system operating time, which may offset increased instantaneous current draw depending on application requirements.

Q: Are there any package or moisture sensitivity differences?

A: The ATTINY13-20SU is supplied in Tube packaging with MSL rating of 2 (1 Year), compared to the main part with MSL rating of 1 (Unlimited). Both parts use identical 8-SOIC package geometry.