EPC1441PI8 Equivalent & Substitute Parts

Part Overview

The EPC1441PI8 is a 400Kbit OTP (One-Time Programmable) configuration device manufactured by Intel, housed in an 8-DIP package. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The part operates across dual voltage ranges (3V–3.6V and 4.5V–5.5V) and supports industrial temperature specifications (-40°C to 85°C). Due to its obsolete status, sourcing direct replacements requires evaluation of compatible memory devices with equivalent electrical and mechanical characteristics.

Substiute Parts

EPC1441PI8

IntelIn Stock: 6178EPC1441PI8 Datasheet

Current PartRFQ

AT17LV512A-10PU

Microchip TechnologyIn Stock: 1504AT17LV512A-10PU Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EPC1441PI8 is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Package/Case: 8-DIP (0.300", 7.62mm) — ensures mechanical and pin compatibility
• Voltage Supply Range: 3V–3.6V and 4.5V–5.5V — maintains operational compatibility across system voltage domains
• Operating Temperature Range: -40°C to 85°C — preserves thermal performance envelope
• Mounting Type: Through Hole — maintains PCB assembly compatibility
• Memory Type: Programmable memory (OTP or Serial EEPROM) — ensures functional equivalence for configuration storage

The AT17LV512A-10PU from Microchip Technology satisfies all critical parameters. While the substitute employs Serial EEPROM technology (versus OTP), both memory types function as programmable configuration devices. The AT17LV512A-10PU provides 512Kb capacity, exceeding the original 440Kb specification, and maintains identical voltage and temperature operating ranges within the same 8-DIP package footprint.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: AT17LV512A-10PU

The AT17LV512A-10PU is the qualified equivalent for EPC1441PI8 replacement based on the following factors:

• Electrical Compatibility: Identical voltage supply ranges (3V–3.6V and 4.5V–5.5V) and operating temperature specifications (-40°C to 85°C) ensure direct functional substitution without circuit redesign.
• Mechanical Compatibility: Identical 8-DIP package footprint and through-hole mounting enable direct PCB placement without layout modification.
• Capacity Advantage: 512Kb memory capacity exceeds the original 440Kb specification, providing additional storage margin for configuration data.
• Product Availability: Active product status ensures reliable sourcing and long-term supply continuity, addressing the obsolescence of the original component.
• Compliance Status: RoHS3 compliance of the substitute meets current regulatory requirements, whereas the original part is RoHS non-compliant.

Frequently Asked Questions (FAQ)

Q: Can the AT17LV512A-10PU directly replace the EPC1441PI8 without PCB modifications?

A: Yes. Both components share identical 8-DIP package dimensions (0.300", 7.62mm), pin spacing, and through-hole mounting specifications. Direct pin-for-pin substitution is mechanically and electrically feasible without PCB layout changes.

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

A: OTP (One-Time Programmable) memory is programmed once and cannot be erased. Serial EEPROM memory is reprogrammable and erasable. For configuration storage applications, Serial EEPROM provides additional flexibility for field updates and reprogramming cycles, while maintaining equivalent data retention and functional performance.

Q: Does the higher memory capacity (512Kb vs. 440Kb) of the substitute create compatibility issues?

A: No. The increased capacity is a superset of the original specification. Systems designed for 440Kb capacity operate without modification on 512Kb devices. The additional memory remains unused and does not affect circuit operation.

Q: Are the voltage supply ranges identical between the two parts?

A: Yes. Both the EPC1441PI8 and AT17LV512A-10PU operate across 3V–3.6V and 4.5V–5.5V supply ranges. No power supply circuit modifications are required.

Q: What is the significance of the RoHS compliance difference?

A: The original EPC1441PI8 is RoHS non-compliant, while the AT17LV512A-10PU is RoHS3 compliant. For new designs or systems subject to RoHS regulations, the substitute meets current environmental and material restriction requirements. Existing systems using the original part are not affected by this distinction.

Q: Are there any temperature or operating condition limitations when substituting this part?

A: No. Both components share identical operating temperature ranges (-40°C to 85°C) and MSL ratings (1 — Unlimited). Thermal and environmental performance characteristics are equivalent.