The X24012 is a CMOS 1024 bit serial E2PROM, internally organized as one 128 x 8 bank. The X24012 features a serial interface and software protocol allowing operation on a simple two wire bus. Three address inputs allow up to eight devices to share a common two wire bus. Xicor E2PROMs are designed and tested for applications requiring extended endurance. Inherent data retention is greater than 100 years. The X24012 is available in eight pin DIP and SOIC packages.
The X24012 is a CMOS 1024‑bit serial EEPROM organized as a single 128 × 8‑bit bank. It operates from a 2.7 V to 5.5 V supply and features a two‑wire serial interface with three address pins, allowing up to eight devices on the same bus. The device supports byte‑write, four‑byte page‑write, and several read modes with an endurance of 100 000 cycles and data retention of 100 years.
The datasheet provides pin descriptions, timing diagrams, write‑cycle procedures, packaging dimensions, ordering codes, and warranty information. It also includes guidelines for pull‑up resistor selection and acknowledges the RoHS‑compliant lead‑free options.
| Power supply voltage | 2.7 V to 5.5 V |
|---|---|
| Active current | < 1 mA |
| Standby current | < 50 µA |
| Typical write cycle time | 5 ms |
| Endurance | 100 000 cycles |
| Data retention | 100 years |
| Memory organization | 128 × 8 bits (1024 bits total) |
| Package types | 8‑lead DIP (P) and 8‑lead SOIC (S) |
| Maximum devices on bus | 8 |
| Industrial temperature range | -40 °C to +85 °C |
The X24012 operates from 2.7 V to 5.5 V.
It is rated for 100 000 write cycles.
A typical write cycle takes about 5 ms.
The device is offered in an 8‑lead DIP package and an 8‑lead SOIC package.