This document is about the specification of BATRON BT 21605AVB-YETF-LED04-I2C(HD66717)
The BT 21605AVB-YETF-LED04-I2C is a 2‑line by 16‑character STN positive green‑yellow transflective LCD module with a yellow‑green LED04 backlight. It uses a 1/34 multiplexed drive scheme, 1/6 bias, and is driven by a HITACHI HCD66717A03BP LCD controller. The module supports serial interfacing via P‑C bus or clock‑synchronized serial interface and includes a built‑in booster circuit with temperature compensation.
Key specifications include outline dimensions of 80 mm × 36 mm × 13 mm, a viewing area of 61 mm × 15.8 mm, and a supply voltage range of –0.3 V to +7.0 V for logic and –0.3 V to +15.0 V for VDD‑V0. The device can operate within ambient temperatures up to 30 °C, humidity up to 95 % RH, and meets IEC vibration and shock requirements. Slave address and VLCD source can be configured via jumper settings.
| Display format | 2 lines x 16 characters (5 x 8 dots) |
|---|---|
| Outline dimensions | 80.0 mm (W) x 36.0 mm (H) x 13.0 mm (D) |
| Viewing area | 61.0 mm (W) x 15.8 mm (H) |
| Character size | 2.95 mm (W) x 5.55 mm (H) |
| Logic supply voltage range (VDD‑GND) | -0.3 V to +7.0 V |
| VDD‑V0 supply voltage range | -0.3 V to +15.0 V |
| Input voltage range (Vi) | -0.3 VDD to +0.3 V |
| Weight | Approx. 36.6 g |
| Backlight color | Yellow‑green LED04 |
| Driving IC | HITACHI HCD66717A03BP (Gold Bump) |
It displays 2 lines of 16 characters in a 5 × 8 dot matrix.
By configuring jumpers JP1‑JP12; the default address is 011100 with jumpers 2, 3, 5, 7, 10, 12 closed.