The product is ROHM's BU9795AKV/FV/GUW, BU9794AKV, BU97950FUV/KS2 series standard segment driver, which has ultra-low power consumption, no external components, and only driver function.
The ROHM BU9795AKV series is an ultra‑low‑power LCD segment driver that requires no external components. It offers a 3‑wire serial interface, integrated DDRAM, and built‑in bias, duty‑cycle, and power‑on‑reset circuits, making it suitable for a wide range of devices such as telephones, POS terminals, and consumer electronics.
The document provides detailed pin arrangements, block diagrams, absolute maximum ratings, recommended operating conditions, and full electrical characteristics for the BU9795AKV, BU9794AKV, and BU97950FUV/KS2 variants.
| Interface type | 3‑wire serial |
|---|---|
| Operational temperature range | -40 °C ~ +85 °C |
| Standby current (Ist) | 5 µA |
| Frame frequency (fCLK) | 56 ~ 104 Hz |
| Input rise time (tr) | 80 ns |
The BU9795AKV uses a 3‑wire serial interface.
The standby current (Ist) is 5 µA.
The driver can operate at frame frequencies from 56 Hz to 104 Hz.