BU9844GUL-W series is a serial EEPROM of I2C BUS interface method. 1.7V single power source action and actions available at 400kHz.
The BU9844GUL-W is a 16‑Kbit serial EEPROM that uses the I²C‑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 lists key electrical parameters, timing characteristics, pin assignments, and package information. It also includes endurance data such as 1 million rewrite cycles and 40‑year data retention, as well as temperature limits for operation and storage.
| Capacity | 16 Kbit (2048 × 8) |
|---|---|
| Supply voltage | 1.7 V ~ 5.5 V |
| Write current (5 V) | 1.2 mA (Typ.) |
| Read current (5 V) | 0.2 mA (Typ.) |
| Standby current (5 V) | 0.1 µA (Typ.) |
| Data rewrite endurance | 1 000 000 times |
| Data retention | 40 years |
| Operating temperature range | -40 °C ~ 85 °C |
| Storage temperature range | -65 °C ~ 125 °C |
| Maximum supply voltage | -0.3 V ~ +6.5 V |
| Package | VCSP5OL1 |
It operates from 1.7 V to 5.5 V.
The device is rated for up to 1 000 000 data rewrite cycles.
Data is retained for 40 years.
It can operate between –40 °C and +85 °C.