DS2502-E64 Equivalent & Substitute Parts

Part Overview

The DS2502-E64 is a 1Kbit EPROM OTP (One-Time Programmable) memory IC featuring 1-Wire® interface technology, manufactured by Analog Devices Inc./Maxim Integrated. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and production requirements. The part is housed in a TO-92-3 package and operates across a supply voltage range of 2.8V to 6V with an operating temperature range of -40°C to 85°C.

Substiute Parts

DS2502-E64

Analog Devices Inc./Maxim IntegratedIn Stock: 1166DS2502-E64 Datasheet

Current PartRFQ

DS2502-E64+

Analog Devices Inc./Maxim IntegratedIn Stock: 951DS2502-E64+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DS2502-E64 is determined by strict equivalence across the following critical parameters:

• Memory Type: Non-Volatile
• Memory Format: EPROM
• Technology: EPROM - OTP
• Memory Size: 1Kbit
• Memory Organization: 128 x 8
• Memory Interface: 1-Wire®
• Voltage - Supply: 2.8V ~ 6V
• Operating Temperature: -40°C ~ 85°C (TA)
• Package / Case: TO-92-3

The DS2502-E64+ meets all substitution criteria, maintaining identical electrical specifications and physical packaging while offering improved product status and compliance posture.

Parameter Comparison

Engineering Selection Recommendations

The DS2502-E64+ is the direct functional equivalent of the DS2502-E64. Both parts share identical electrical and mechanical specifications across all critical parameters. The primary distinction lies in product lifecycle status and regulatory compliance: the DS2502-E64+ maintains active product status with ROHS3 compliance, whereas the DS2502-E64 is classified as obsolete and RoHS non-compliant. For new designs and ongoing production, the DS2502-E64+ is the appropriate selection to ensure long-term component availability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Are DS2502-E64 and DS2502-E64+ pin-compatible? A: Yes. Both parts use the TO-92-3 package with identical pinout and electrical interface specifications.

Q: Can DS2502-E64+ replace DS2502-E64 in existing designs? A: Yes. The DS2502-E64+ is a direct substitute with identical memory capacity, interface protocol, voltage specifications, and operating temperature range.

Q: What is the significance of the product status difference? A: The DS2502-E64 is obsolete, indicating discontinued manufacturing and limited availability. The DS2502-E64+ is active, ensuring continued supply and support from the manufacturer.

Q: Does the RoHS compliance difference affect electrical performance? A: No. RoHS compliance relates to material composition and environmental regulations, not electrical functionality. Both parts operate identically within specified parameters.

Q: Are there any package variations between these parts? A: No. Both parts are supplied in TO-92-3 package configuration with identical mechanical dimensions and mounting requirements.

Q: What is the 1-Wire® interface? A: 1-Wire® is a proprietary serial communication protocol that enables data transfer and power delivery through a single signal line, reducing pin count and simplifying circuit design.