ATTINY12L-4PC Equivalent & Substitute Parts

Part Overview

The ATTINY12L-4PC is an 8-bit AVR microcontroller manufactured by Microchip Technology, featuring 1KB FLASH program memory, 64 bytes EEPROM, and 6 I/O pins. Designed for embedded applications requiring low-power operation across a 2.7V to 5.5V supply range, this device operates at 4MHz with integrated Power-On Reset (POR) and Watchdog Timer (WDT) peripherals. The part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications where ATTINY12L variants remain functionally viable.

Substiute Parts

ATTINY12L-4PC

Microchip TechnologyIn Stock: 2174ATTINY12L-4PC Datasheet

Current PartRFQ

ATTINY12L-4PU

AtmelIn Stock: 2453ATTINY12L-4PU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATTINY12L-4PC is determined by strict equivalence across the following critical parameters:

• Core Architecture: AVR processor family
• Memory Configuration: 1KB FLASH program memory and 64-byte EEPROM
• I/O Count: 6 I/O pins
• Operating Voltage: 2.7V to 5.5V supply range
• Clock Speed: 4MHz operation
• Package Format: 8-PDIP (Through Hole, 0.300" pitch)
• Peripheral Set: POR and WDT functionality

The ATTINY12L-4PU meets all substitution criteria, maintaining identical electrical specifications and mechanical compatibility while differing only in packaging designation (plastic DIP variant) and product status classification.

Parameter Comparison

Engineering Selection Recommendations

The ATTINY12L-4PU serves as a direct functional substitute for the ATTINY12L-4PC across all electrical and mechanical parameters. The primary distinction is product status: the ATTINY12L-4PC is classified as obsolete, while the ATTINY12L-4PU maintains active production status, ensuring continued availability and supply chain reliability.

The ATTINY12L-4PU exhibits an extended operating temperature range (-40°C to 85°C) compared to the ATTINY12L-4PC (0°C to 70°C), providing broader environmental compatibility for applications requiring operation outside standard industrial temperature bands.

Both devices comply with identical compliance frameworks (ECCN: EAR99, HTSUS: 8542.31.0001) and maintain equivalent RoHS and REACH classifications. Selection between these parts should prioritize the ATTINY12L-4PU for new designs and ongoing production due to its active status and extended temperature specification.

Frequently Asked Questions (FAQ)

Q: Can ATTINY12L-4PU replace ATTINY12L-4PC in existing designs?

A: Yes. The ATTINY12L-4PU is electrically and mechanically equivalent across all specified parameters, including core architecture, memory configuration, I/O count, supply voltage range, clock speed, and package format. Direct substitution is supported without design modification.

Q: What is the difference between the -4PC and -4PU package designations?

A: Both designations refer to 8-PDIP (Plastic Dual Inline Package) through-hole mounting. The suffix variation reflects manufacturer packaging classification conventions but does not affect electrical performance or mechanical compatibility.

Q: Why does the ATTINY12L-4PU have a wider operating temperature range?

A: The ATTINY12L-4PU (-40°C to 85°C) extends beyond the ATTINY12L-4PC specification (0°C to 70°C). This expanded range accommodates industrial and extended-temperature applications while maintaining full functional equivalence at the original operating range.

Q: Are there compliance or certification differences between these parts?

A: Both parts share identical ECCN, HTSUS, and regulatory classification codes. Compliance frameworks are equivalent, with no restrictions on substitution from a regulatory standpoint.

Q: What should drive the selection between these two parts?

A: Product availability and supply chain continuity should drive selection. The ATTINY12L-4PU maintains active production status, ensuring long-term availability. The ATTINY12L-4PC is obsolete and should be replaced in new designs and production runs.