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Analog Devices DS2502P+ — Discrete Semiconductors
Analog Devices

DS2502P+ 1Kbit 1-Wire EPROM, OTP, -40°C to +85°C

MPNDS2502P+
End of Life

Analog Devices DS2502P+ 1Kbit (128 x 8) OTP EPROM, 1-Wire interface, 2.8V–6V supply, -40°C to +85°C, 6-TSOC package, Tube.

$3.25Ref. price · indicative, final on quote
DS2502P+ datasheet
Packaging6-SMD, J-Lead
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

DS2502P+ Technical Specifications
ParameterValue
Memory typeNon-Volatile
Mounting typeSurface Mount
Voltage2.8V ~ 6V
Memory interface1-Wire®
Operating temperature-40°C ~ 85°C (TA)
PackageTube
TechnologyEPROM - OTP
Memory size1Kbit
Memory formatEPROM
Case6-SMD, J-Lead
Memory organization128 x 8

Product details

What this 1-Wire EPROM is and where it fits

The Analog Devices DS2502P+ is a 1Kbit one-time-programmable EPROM accessed over a single-wire interface — no clock, no chip-select, just one data line and ground. The 1-Wire protocol lets a microcontroller or dedicated master read the stored 128 bytes with a single GPIO pin.

OTP memory: no field updates possible

Because this is an OTP EPROM, every byte is written exactly once. That makes it a poor fit for firmware storage or any data that needs periodic revision — for those jobs, look at an EEPROM or Flash part on the same 1-Wire bus. But for a fixed serial number, a calibration coefficient table, or a one-time authentication key that must survive power loss and resist alteration, the DS2502P+ is exactly the right density at 1Kbit (128 x 8).

Sourcing and lifecycle

The DS2502P+ is listed as Active and ROHS3 compliant. No end-of-life notice or last-time-buy window is on record.

Frequently asked questions

Is DS2502P+ a 1-Wire device?

Yes, the DS2502P+ uses the 1-Wire interface — a single data line plus ground for communication with a microcontroller or dedicated 1-Wire master.

What is the closest pin-compatible alternative to DS2502P+?

Within the same 1-Wire EPROM family, the DS2502 (without the + suffix) is the same die in a different package option — verify the exact order code against your BOM for pin compatibility. For a larger density, the DS2505 offers 16Kbit in a similar TSOC package but check the pinout.