BU9847GUL-W series is a serial EEPROM of I2C BUS interface method. It can operate at 1.7V single power source and 400kHz clock.
The BU9847GUL-W is a high‑reliability 4‑Kbit serial EEPROM that uses the I²C‑compatible ’C‑BUS interface. It operates from a single 1.7 V to 5.5 V supply and supports up to 400 kHz clock rates, making it suitable for battery‑powered applications.
The document provides detailed electrical characteristics, timing diagrams, pin assignments, and ordering information, along with recommended operating conditions and absolute maximum ratings. It also describes the write‑protect function, page‑write capability, and data‑retention specifications.
| Capacity | 512 × 8 bits (4 Kbit) |
|---|---|
| Supply voltage | 1.7 V – 5.5 V |
| Operating temperature range | -40 °C – 85 °C |
| Storage temperature range | -65 °C – 125 °C |
| Maximum write current (5 V) | 1.2 mA typ. |
| Maximum read current (5 V) | 0.2 mA typ. |
| Standby current (5 V) | 0.1 mA typ. |
| Maximum SCL frequency | 400 kHz |
| Data rewrite endurance | 1,000,000 cycles |
| Data retention | 40 years |
| Write‑protect function | Enabled via WP pin |
It operates from 1.7 V to 5.5 V.
The device can be rewritten up to 1,000,000 times.
Data is retained for up to 40 years.
The maximum SCL frequency is 400 kHz.