The document describes the features and characteristics of the CAT25010/20/40 SPI Serial CMOS EEPROM produced by Catalyst Semiconductor. The product is compatible with 10MHz SPI, operates at a voltage range of 1.8 to 5.5 volts, supports SPI modes 00 and 11, features a 16-byte page write buffer, self-timed write cycle, hardware and software protection, block write protection, low power CMOS technology, 1,000,000 program/erase cycles, 100 year data retention, and is suitable for industrial temperature range.
The CAT25010, CAT25020, and CAT25040 are 1‑Kbit, 2‑Kbit, and 4‑Kbit SPI serial CMOS EEPROMs offered by Catalyst Semiconductor. They operate from 1.8 V to 5.5 V, support up to 10 MHz SPI clock rates, and include hardware and software write‑protect features.
The devices are available in RoHS‑compliant 8‑lead PDIP, SOIC, TSSOP and 8‑pad TDFN packages, provide a 16‑byte page write buffer, and are rated for 1 000 000 program/erase cycles with 100‑year data retention. Operating temperature is specified from –40 °C to +85 °C.
| Memory size | 1 Kbit / 2 Kbit / 4 Kbit |
|---|---|
| Operating voltage | 1.8 V to 5.5 V |
| Maximum SPI clock frequency | 10 MHz |
| Program/Erase endurance | 1,000,000 cycles |
| Data retention | 100 years |
| Operating temperature range | -40 °C to +85 °C |
| Package types | PDIP, SOIC, TSSOP, TDFN (8‑lead) |
The devices support up to 10 MHz SPI clock frequency.
Each device is rated for 1 000 000 program/erase cycles.
The EEPROM retains data for 100 years.
They operate from 1.8 V to 5.5 V.