Maxim DS2431Q+T&R, 1Kbit (256 x 4) EEPROM, 1-Wire interface, 2 µs access time, surface-mount 6-WDFN exposed pad, -40°C to 85°C operating temperature.
| Parameter | Value |
|---|---|
| Memory type | Non-Volatile |
| Mounting type | Surface Mount |
| Memory interface | 1-Wire® |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Technology | EEPROM |
| Access time | 2 µs |
| Memory size | 1Kbit |
| Memory format | EEPROM |
| Case | 6-WDFN Exposed Pad |
| Memory organization | 256 x 4 |
The Maxim Integrated DS2431Q+T&R is a 1Kbit serial EEPROM communicating over a single-contact 1-Wire interface. Organized as 256 x 4 bits, it provides non-volatile storage for calibration constants, serial numbers, or system configuration data.
ROHS3 compliant, it ships in Tape & Reel or Cut Tape options, so it fits both prototype builds and volume production without procurement risk.
Yes, the DS2431Q+T&R is ROHS3 Compliant, meaning it meets the latest ROHS directive without exemptions. No lead or restricted substances above the threshold.
The DS2431 operates from a 2.8V to 5.25V supply, so 3.3V is within range. The 1-Wire interface uses a single data line with a timing slot of approximately 60 µs for standard speed; the 2 µs access time refers to the read cycle from the memory array to the output register. Detailed timing parameters are in the datasheet, but the key takeaway is that standard 1-Wire host controllers (e.g., Maxim DS2482 or bit-banged GPIO) work directly.