The DS2430A is a 256-bit Electrically Erasable Programmable Read Only Memory (EEPROM) plus a 64-bit one-time programmable application register. It has a unique, factory-lasered and tested 64-bit registration number (8-bit family code + 48-bit serial number + 8-bit CRC tester) for absolute identification as no two parts are alike. The DS2430A has a built-in multidrop controller for compatibility with other MicroLAN products. The EEPROM is organized as one page of 32 bytes for random access. It reduces control, address, data, and power to a single data pin. It can directly connect to a single port pin of a microprocessor and communicate at up to 16.3kbits per second. The 8-bit family code specifies DS2430A communication requirements to the reader. The presence detector acknowledges when the reader first applies voltage. The DS2430A is available in a low cost TO-92 or 6-pin TSOC and Flip Chip surface mount package. It can read and write over a wide voltage range of 2.8V to 6.0V from -40°C to +85°C.
The DS2430A provides 256 bits of user‑programmable EEPROM organized as one page of 32 bytes, accessed via a single data pin using the 1‑Wire protocol. It includes a unique 64‑bit ROM code, a 64‑bit one‑time programmable application register, and a status register for lock detection.
The device is offered in TO‑92, 6‑pin TSOC, and flip‑chip packages, operates from 2.8 V to 6.0 V, and functions over a temperature range of –40 °C to +85 °C. Detailed memory function commands allow reading, writing, and copying data between the scratchpad and EEPROM, as well as managing the application register.
| Operating voltage (VDD) | 2.8 V to 6.0 V |
|---|---|
| Operating temperature range | -40 °C to +85 °C |
The DS2430A operates from 2.8 V up to 6.0 V on the data line.
The device works reliably from –40 °C to +85 °C.
It is offered in TO‑92, 6‑pin TSOC, and flip‑chip packages, with tape‑and‑reel options.