DS2502P EPROM 1-Wire Memory IC - Equivalent & Substitute Parts

Part Overview

The DS2502P is a 1Kbit EPROM non-volatile memory IC manufactured by Analog Devices Inc./Maxim Integrated, packaged in a 6-TSOC surface mount configuration. This component implements 1-Wire® protocol communication with 128 x 8 memory organization. The DS2502P is currently classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

DS2502P
Analog Devices Inc./Maxim IntegratedIn Stock: 17745DS2502P Datasheet
DS2502P
Current Part
DS2502P+
Analog Devices Inc./Maxim IntegratedIn Stock: 6072DS2502P+ Datasheet
DS2502P+
Direct

Key Parameters

Parameter Value
Memory Type Non-Volatile EPROM
Memory Size 1Kbit
Memory Organization 128 x 8
Memory Interface 1-Wire®
Memory Format EPROM - OTP
Supply Voltage 2.8V ~ 6V
Operating Temperature Range -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package / Case 6-SMD, J-Lead
Supplier Device Package 6-TSOC

Substitute Part Grouping Explanation

Substitution eligibility for the DS2502P is determined by strict equivalence across the following critical parameters:

  • Memory Type: Non-Volatile EPROM
  • Memory Size: 1Kbit capacity
  • Memory Organization: 128 x 8 configuration
  • Memory Interface: 1-Wire® protocol compatibility
  • Memory Format: EPROM - OTP technology
  • Supply Voltage: 2.8V ~ 6V operating range
  • Operating Temperature: -40°C ~ 85°C
  • Package / Case: 6-SMD, J-Lead form factor
  • Supplier Device Package: 6-TSOC

The DS2502P+ qualifies as a direct substitute based on complete alignment with all electrical and mechanical parameters. The primary distinction is product status and compliance certification.

Parameter Comparison

Parameter DS2502P (Main Part) DS2502P+ (Substitute)
Manufacturer Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated
Memory Type Non-Volatile EPROM Non-Volatile EPROM
Memory Size 1Kbit 1Kbit
Memory Organization 128 x 8 128 x 8
Memory Interface 1-Wire® 1-Wire®
Memory Format EPROM - OTP EPROM - OTP
Supply Voltage 2.8V ~ 6V 2.8V ~ 6V
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Mounting Type Surface Mount Surface Mount
Package / Case 6-SMD, J-Lead 6-SMD, J-Lead
Supplier Device Package 6-TSOC 6-TSOC
Product Status Obsolete Active
RoHS Status RoHS non-compliant ROHS3 Compliant
Packaging Not specified Tube

Engineering Selection Recommendations

The DS2502P+ is a direct electrical and mechanical equivalent to the DS2502P. Selection between these parts should be based on the following criteria:

DS2502P+ is the preferred choice for new designs and ongoing production due to:

  • Active product status with continued manufacturer support
  • ROHS3 compliance certification
  • Identical electrical specifications and 1-Wire® protocol implementation
  • Same 6-TSOC package footprint and pinout

DS2502P remains applicable only for legacy system maintenance where existing inventory or specific non-compliance requirements apply.

Both parts share identical memory capacity, interface protocol, voltage specifications, and temperature operating range, ensuring functional interchangeability in circuit implementations.

Frequently Asked Questions (FAQ)

Q: Can DS2502P+ be used as a direct replacement for DS2502P in existing designs?

A: Yes. The DS2502P+ provides complete electrical and mechanical equivalence. All memory specifications, 1-Wire® interface characteristics, supply voltage range (2.8V ~ 6V), and operating temperature range (-40°C ~ 85°C) are identical. The 6-TSOC package footprint and pinout are unchanged.

Q: What is the primary difference between DS2502P and DS2502P+?

A: The DS2502P is obsolete, while DS2502P+ maintains active product status. Additionally, DS2502P+ is ROHS3 compliant, whereas DS2502P is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Are there any package or pinout differences between these parts?

A: No. Both parts use the 6-SMD, J-Lead package configuration with 6-TSOC supplier device package designation. Pinout and footprint are identical.

Q: What memory capacity does the DS2502P provide?

A: The DS2502P provides 1Kbit of non-volatile EPROM memory organized as 128 x 8 bits, accessed via 1-Wire® serial protocol.

Q: What supply voltage range is required for DS2502P operation?

A: The DS2502P operates across a 2.8V to 6V supply voltage range, suitable for both 3.3V and 5V logic systems.

Q: Is the DS2502P+ available in different packaging options?

A: The DS2502P+ is supplied in Tube packaging. The DS2502P packaging specification was not provided in the component data.

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