This document is the data sheet of PCF85xxC-2 family 256 to 1024 × 8-bit CMOS EEPROMs with I2C-bus interface.
The PCF85xxC-2 family from Philips Semiconductors comprises 2‑, 4‑ and 8‑kbit CMOS EEPROMs with an I²C‑bus interface. The devices operate from a single 2.5 V to 6.0 V supply and feature low power consumption, on‑chip voltage multiplication, and redundant storage for fault tolerance.
The datasheet provides full pin descriptions, timing diagrams, write‑cycle characteristics, endurance ratings, and ordering information for the DIP‑8 and SO‑8 packages. It also defines the I²C‑bus protocol, device addressing, and page‑write operation details.
| Supply voltage range | 2.5 V – 6.0 V |
|---|---|
| Maximum operating current (PCF8582C‑2) | 2.0 mA |
| Maximum standby current (6 V) | 10 µA |
| Memory size (PCF8582C‑2) | 2 kbit (256 × 8‑bit) |
| Endurance | 1 000 000 erase/write cycles |
| Data retention | 10 years (non‑volatile) |
The typical E/W time is about 10 ms per byte.
The I²C‑bus provides two bidirectional lines: SDA for data and SCL for clock.
The maximum standby current is 10 µA at 6 V.