Analog Devices Inc./Maxim Integrated DS28CM00R-A00+T

The DS28CM00 provides a unique, factory-lasered 64-bit registration number over an SMBus-compatible I2C interface. The read-only registration field combines an 8-bit family code, a 48-bit serial number and an 8-bit CRC. A separate control register selects I2C or SMBus behavior.

The catalog's original package entry is SC-74A, SOT-753. Its registered SC-74A image path is shown below. The manufacturer ordering table identifies the exact device as a five-pin SOT23, tape-and-reel package. Confirm pad geometry against the manufacturer's package drawing rather than assuming every alias has an identical land pattern.

Layout checks

• Verify five-pin SOT23 body, pin-one orientation and recommended footprint.
• Allow host-side pull-up resistors on both serial lines.
• Check the +T tape-and-reel orientation with the assembler.

The registered package JPG is currently unavailable on the production site; the image must be restored and checked before publication.

The following pin numbers and functions are taken from the manufacturer's DS28CM00 datasheet for its five-pin SOT23 device.

Check the package drawing and top-view orientation when translating these numbers into PCB pads.

Values are datasheet operating specifications, not absolute-maximum ratings. Apply the current datasheet timing and electrical tables for detailed design limits.

The manufacturer's DS28CM00R-A00+U is another listed order form, but ordering suffixes and packing must be checked before substitution. Any different serial-number IC also requires review of slave address, read command sequence, registration layout, CRC, supply range, temperature rating and footprint. No unverified catalog replacement link is provided.

The original DS28CM00 documentation was issued by Maxim Integrated; Analog Devices maintains the product information and datasheet. Consult the current controlled datasheet, package resources and relevant errata before final design or procurement approval.

Confirm the full order code, package marking, reel label, lot traceability and lead-free documentation against the purchasing specification. A readable serial number and valid CRC support data integrity checks but do not by themselves authenticate supply-chain provenance.

Verify the exact SOT23 mechanical drawing against the catalog's SC-74A/SOT-753 aliases, interface pull-ups, host voltage, fixed bus address and SMBus timeout selection. The package JPG is not available on the production website; restore and visually verify it before this page is published.