Active production, 4Kbit 1-Wire EEPROM in SOIC-8
The Maxim Integrated DS24B33S+ is a 4Kbit serial EEPROM communicating over a single-wire 1-Wire interface. Organized as 256 x 16 bits, it stores calibration constants, serial numbers, or configuration data in a non-volatile memory that retains contents without power. The 2 µs access time is fast enough for most identification and parameter-recall tasks over the 1-Wire bus. Supply range spans 2.8V to 5.25V, covering 3.3V and 5V logic rails without a level shifter.
Supply voltage and temperature grade — what they mean for fit
The 2.8V minimum supply means this part runs directly from a 3.3V rail with margin, and the 5.25V maximum covers 5V-tolerant systems. No external regulator is needed if the bus master operates in the same range. For a cold-start scenario at -40°C, the 1-Wire timing may stretch slightly, but the spec guarantees operation across the full range.
The Tube shipping format is typical for prototype and low-volume builds; reels are available for production runs. The package is MSL 1, so no bake is required before reflow as long as the moisture barrier bag is intact.
It is ROHS3 compliant.