EPC1LI20N Equivalent & Substitute Parts

Part Overview

The EPC1LI20N is a 1Mbit OTP (One-Time Programmable) configuration device manufactured by Intel, housed in a 20-PLCC surface mount package. This part is classified as obsolete, making substitute components necessary for ongoing system support and new design implementations. The device operates across dual voltage ranges (3V–3.6V and 4.5V–5.5V) and is suitable for applications requiring non-volatile memory storage in industrial and commercial temperature ranges.

Substiute Parts

EPC1LI20N

IntelIn Stock: 2273EPC1LI20N Datasheet

Current PartRFQ

AT17LV010A-10JU

Microchip TechnologyIn Stock: 1238AT17LV010A-10JU Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EPC1LI20N is based on the following critical parameters:

• Memory Capacity: 1Mb (non-negotiable for data storage compatibility)
• Package Type: 20-PLCC (9×9) surface mount (ensures mechanical and electrical fit)
• Voltage Compatibility: Support for 3V–3.6V and 4.5V–5.5V supply ranges (maintains circuit operation across system voltage domains)
• Operating Temperature Range: –40°C to +85°C (ensures reliability in specified environmental conditions)
• Programmable Technology: OTP or Serial EEPROM (both provide non-volatile storage; Serial EEPROM offers reprogrammability)

The AT17LV010A-10JU meets all substitution criteria. While it employs Serial EEPROM technology rather than OTP, this represents a functional upgrade, as Serial EEPROM devices retain full compatibility with OTP pinouts and voltage specifications while offering enhanced programmability.

Parameter Comparison

Engineering Selection Recommendations

The AT17LV010A-10JU is the qualified substitute for the EPC1LI20N based on the following factors:

• Electrical Compatibility: Identical voltage supply ranges and operating temperature specifications ensure direct functional replacement without circuit modification.
• Mechanical Compatibility: Both devices use the 20-PLCC (9×9) package, enabling direct socket substitution.
• Product Status: The AT17LV010A-10JU is active and in production, ensuring long-term availability and supply chain stability, whereas the EPC1LI20N is obsolete.
• Regulatory Compliance: The AT17LV010A-10JU carries ROHS3 compliance and maintains REACH Unaffected status, meeting modern environmental and regulatory requirements.
• Programmability Enhancement: Serial EEPROM technology provides reprogrammability, offering functional advantages over OTP while maintaining full backward compatibility.
• Moisture Handling: The improved MSL rating (2 vs. 3) indicates superior moisture resistance, reducing risk during storage and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the AT17LV010A-10JU directly replace the EPC1LI20N without circuit modifications?

A: Yes. Both devices share identical pinouts, voltage specifications, temperature ranges, and 20-PLCC package dimensions. Direct socket substitution is possible.

Q: What is the functional difference between OTP and Serial EEPROM?

A: OTP (One-Time Programmable) devices can be programmed once and cannot be erased. Serial EEPROM devices can be reprogrammed multiple times. For applications requiring only single programming, both are functionally equivalent. For applications requiring reprogramming capability, Serial EEPROM provides additional flexibility.

Q: Are there any supply voltage considerations when switching to the AT17LV010A-10JU?

A: No. Both devices support the same dual voltage ranges: 3V–3.6V and 4.5V–5.5V. Existing power supply designs require no modification.

Q: Does the improved MSL rating of the AT17LV010A-10JU affect handling procedures?

A: The AT17LV010A-10JU has an MSL rating of 2 (1 Year) compared to the EPC1LI20N's MSL rating of 3 (168 Hours). This indicates superior moisture resistance and allows for longer shelf life and more flexible storage conditions.

Q: Is the AT17LV010A-10JU RoHS compliant?

A: Yes. The AT17LV010A-10JU is ROHS3 compliant, meeting current environmental regulations. The EPC1LI20N's RoHS status was not specified in the available data.

Q: What is the inventory status of the substitute part?

A: The AT17LV010A-10JU is currently in active production with 1216 pieces available in new original stock, ensuring reliable supply for immediate and future requirements.