Alternatives to Analog Devices DS28CM00R-A00+U
Analog Devices DS28CM00R-A00+U and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 DS28CM00R-A00+UAnalog Devices | DS28CM00R-A00+TAnalog Devices Inc./Maxim Integrated |  24AA02UIDT-I/OTMicrochip Technology | +1more | |
|---|---|---|---|---|
| FFF Compatibility | The pinout and SOT-23-5 package are completely identical to the queried part.Uses the same SOT-23-5 package outline and dimensions.It is the exact same silicon die, utilizing the identical 64-bit registration number and I2C/SMBus protocol. | Pin assignments are incompatible; Pin 4 is VCC and Pin 5 is NC, whereas the queried part has Pin 4 as N.C. and Pin 5 as VCC.Housed in an identical SOT-23-5 package footprint.While it provides a unique identification over I2C, it functions as a standard EEPROM with a UID register rather than a dedicated 64-bit silicon ROM, requiring firmware modifications to read. | ||
 AI Summary | DS28CM00R-A00+U by Analog Devices: Silicon Serial Number SOT-23-5. | This is the exact same silicon serial number IC, differing only in the packaging option (Tape & Reel vs Tube). It represents a seamless, 100% drop-in replacement with zero hardware or software changes required.
| This is a widely available 2Kbit I2C serial EEPROM that includes a pre-programmed, factory-locked unique 128-bit ID. It serves as a strong functional alternative for identification but requires a PCB layout revision due to swapped VCC and NC pins, alongside firmware updates to handle the standard EEPROM UID reading protocol.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | Non-stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Silicon Serial Number SOT-23-5 | Silicon Serial Number SOT-23-5 | EEPROM Memory IC 2Kbit I2C 400 kHz 900 ns SOT-23-5 | |
| Manufacturer | Analog Devices | Analog Devices Inc./Maxim Integrated | Microchip Technology | |
| Type | Specialized ICs | Specialized ICs | Memory | |
| Datasheet | Open | Open | Open | |
| Lead Time | 13 weeks | 15 weeks | 5 weeks | |
| Country of Origin | PH | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0060 | - | - | |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - | |
| Type | Silicon Serial Number | - | - | |
| Applications | PCB, Network Node, Equipment Identification/Registration | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | SC-74A, SOT-753 | - | - | |
| DigiKey Programmable | Not Verified | - | - | |
| Supplier Device Package | SOT-23-5 | - | - |
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Frequently asked questions
Yes. The Analog Devices DS28CM00R-A00+U is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.
The closest qualified second sources for the Analog Devices DS28CM00R-A00+U are the DS28CM00R-A00+T (Analog Devices Inc./Maxim Integrated) and the 24AA02UIDT-I/OT (Microchip Technology), out of 3 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Not always. The alternatives to the DS28CM00R-A00+U are matched on function but can differ in package, pinout or a key parameter, so review the fit/form/function notes in the table and the datasheet before designing one in.
The DS28CM00R-A00+U (Analog Devices) is a part in the Specialized ICs category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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