DS2502 Equivalent & Substitute Parts

Part Overview

The DS2502 is a 1Kbit EPROM OTP (One-Time Programmable) memory IC utilizing 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 requirements and system maintenance. 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

Analog Devices Inc./Maxim IntegratedIn Stock: 2494DS2502 Datasheet

Current PartRFQ

DS2502+

Analog Devices Inc./Maxim IntegratedIn Stock: 1227DS2502+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DS2502 is determined by strict alignment across the following critical parameters:

• Memory capacity: 1Kbit
• Memory organization: 128 x 8 bit structure
• Interface protocol: 1-Wire® communication standard
• Package type: TO-92-3 through-hole configuration
• Supply voltage range: 2.8V to 6V compatibility
• Operating temperature range: -40°C to 85°C

The DS2502+ qualifies as a direct substitute based on identical electrical specifications and mechanical packaging. The primary distinction is product status and regulatory compliance posture.

Parameter Comparison

Engineering Selection Recommendations

The DS2502+ is the direct functional equivalent of the DS2502, with identical electrical and mechanical specifications. Selection between these parts should be based on the following criteria:

DS2502: Use only when legacy inventory management or specific design constraints mandate the original obsolete part number. RoHS non-compliance status may restrict use in regulated applications.

DS2502+: Recommended for new designs and system updates. Active product status ensures continued availability and supply chain stability. ROHS3 compliance satisfies modern regulatory requirements for electronic component procurement.

Both parts maintain identical 1-Wire® interface protocol, memory capacity, and thermal operating range, ensuring direct pin-for-pin and functional compatibility within circuit implementations.

Frequently Asked Questions (FAQ)

Q: Can DS2502+ be used as a direct replacement for DS2502 in existing designs?

A: Yes. The DS2502+ provides identical electrical performance and mechanical compatibility. Pin configuration, memory organization, interface protocol, and operating parameters are equivalent. Direct substitution is functionally valid.

Q: What is the primary difference between DS2502 and DS2502+?

A: Product status and regulatory compliance. DS2502 is obsolete and RoHS non-compliant. DS2502+ is active production and ROHS3 compliant. Electrical and mechanical specifications are identical.

Q: Are there any package or pinout differences?

A: No. Both parts use TO-92-3 through-hole packaging with identical pin assignments and mechanical dimensions.

Q: What supply voltage range do these parts support?

A: Both DS2502 and DS2502+ operate across 2.8V to 6V supply voltage range, with operating temperature range of -40°C to 85°C.

Q: Is the 1-Wire® interface protocol identical between both parts?

A: Yes. Both parts implement the same 1-Wire® communication standard with 128 x 8 bit memory organization.

Q: Which part should be selected for new production designs?

A: DS2502+ is the appropriate selection for new designs due to active product status and ROHS3 compliance certification.