The DS2430A is a 256-bit electrically erasable programmable read-only memory (EEPROM) plus 64-bit one-time programmable application register.
The DS2430A is a 256‑bit EEPROM that includes a 64‑bit one‑time programmable application register and a unique factory‑laser‑etched 64‑bit ROM code. It uses a single‑wire interface that combines power, ground and data on one pin, allowing communication at up to 16.3 kbits/s.
It is offered in low‑cost TO‑92 and 6‑pin TSOC surface‑mount packages (also tape‑and‑reel and chip‑scale versions), operates from 2.8 V to 6.0 V across –40 °C to +85 °C, and stores data in one 32‑byte page with scratchpad buffers for both data and application registers.
| Logic 1 Input Voltage (Vin) | 2.2 V (min) |
|---|---|
| Logic 0 Input Voltage (Vit) | -0.3 V to +0.8 V |
| Output Logic Low @ 4 mA | 0.4 V |
| Input Load Current (DATA pin) | 5 pA |
| Programming Current | 500 pA |
| Capacitance (Cp) | 800 pF |
Each device has a factory‑laser‑etched 64‑bit registration number made of an 8‑bit family code, a 48‑bit serial number and an 8‑bit CRC, guaranteeing absolute identity.
Power is derived entirely from the 1‑Wire communication line, using parasite power from the data pin.
The device operates from 2.8 V up to 6.0 V.
It is offered in low‑cost TO‑92 and 6‑pin TSOC surface‑mount packages, as well as tape‑and‑reel and chip‑scale versions.