ATTINY11L-2PC Equivalent & Substitute Parts

Part Overview

The ATTINY11L-2PC is an 8-bit AVR microcontroller from Microchip Technology's ATtiny series, featuring 1KB of FLASH program memory and operating at 2MHz. This device is classified as obsolete, which necessitates identification of functionally compatible alternatives for new designs and production continuity. The part is designed for embedded applications requiring low-power operation across a 2.7V to 5.5V supply range with through-hole mounting in an 8-DIP package.

Substiute Parts

ATTINY11L-2PC

Microchip TechnologyIn Stock: 1218ATTINY11L-2PC Datasheet

Current PartRFQ

ATTINY13-20PU

Microchip TechnologyIn Stock: 11501ATTINY13-20PU Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATTINY11L-2PC is based on strict alignment of core electrical and mechanical parameters. The substitute part must satisfy the following criteria:

• AVR core processor architecture
• 8-bit core size
• 1KB FLASH program memory capacity
• 6 I/O pins
• 2.7V to 5.5V supply voltage compatibility
• Through-hole mounting in 8-DIP package format

The ATTINY13-20PU meets all substitution criteria. While it operates at a higher clock speed (20MHz versus 2MHz), this represents a performance enhancement rather than a limitation, as the device remains backward-compatible with applications designed for the ATTINY11L-2PC. The identical pin count, package format, and supply voltage range ensure mechanical and electrical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

The ATTINY13-20PU is the qualified substitute for the ATTINY11L-2PC based on the following engineering factors:

Product Status: The ATTINY11L-2PC is obsolete, while the ATTINY13-20PU maintains active production status, ensuring long-term availability and supply chain continuity.

Compliance: The ATTINY13-20PU is ROHS3 compliant, whereas the ATTINY11L-2PC is non-compliant. This distinction is critical for applications subject to regulatory requirements in markets enforcing RoHS directives.

Electrical Compatibility: Both devices operate within the identical 2.7V to 5.5V supply voltage range and share the same pin configuration, program memory capacity, and I/O count. The higher clock speed of the ATTINY13-20PU (20MHz) does not compromise compatibility with designs originally specified for 2MHz operation.

Thermal Range: The ATTINY13-20PU supports an extended operating temperature range (-40°C to 85°C) compared to the ATTINY11L-2PC (0°C to 70°C), providing greater flexibility for applications across diverse environmental conditions.

Package Compatibility: Both devices utilize the 8-DIP through-hole package, enabling direct socket replacement without PCB redesign.

Frequently Asked Questions (FAQ)

Q: Can the ATTINY13-20PU directly replace the ATTINY11L-2PC in existing designs?

A: Yes. The ATTINY13-20PU is pin-compatible and electrically compatible with the ATTINY11L-2PC. Both devices feature identical pin counts, package formats, and supply voltage ranges. No PCB modifications are required for substitution.

Q: What is the impact of the higher clock speed (20MHz vs. 2MHz)?

A: The ATTINY13-20PU operates at 10 times the clock frequency of the ATTINY11L-2PC. This represents a performance enhancement. Applications designed for the slower device will function correctly on the faster substitute. Clock speed can be managed through internal oscillator configuration if lower power consumption is required.

Q: Are there differences in program memory or I/O capabilities?

A: No. Both devices provide 1KB of FLASH program memory and 6 I/O pins. The memory architecture and pin configuration are identical.

Q: Why is RoHS compliance important for this substitution?

A: The ATTINY13-20PU is ROHS3 compliant, while the ATTINY11L-2PC is not. For applications subject to RoHS regulations or customer requirements, the ATTINY13-20PU ensures regulatory compliance. The obsolete status of the ATTINY11L-2PC makes the compliant substitute the appropriate choice for new production.

Q: What is the operating temperature difference between these devices?

A: The ATTINY11L-2PC operates from 0°C to 70°C, while the ATTINY13-20PU operates from -40°C to 85°C. The extended range of the substitute provides greater flexibility for applications in extreme thermal environments.

Q: Is the 8-DIP package identical for both devices?

A: Yes. Both devices use the 8-DIP (0.300", 7.62mm) through-hole package. Mechanical compatibility is assured, and no PCB layout changes are necessary.