This document is the specification of BTHQ 21605V-FSTF-I2C-COG, introducing the features and characteristics of the product.
The BTHQ 21605V-FSTF-I2C-COG is a 16‑character (5 × 8 dots) × 2‑line FSTN positive black‑and‑white translective LCD module with a white LEDOS backlight. It uses a Philips PCF2119RU/2/F2 COG LCD controller and communicates via an I²C‑compatible data interface.
The document provides mechanical dimensions, electrical limits, environmental operating ranges, and timing diagrams. Key parameters include a 74.5 mm × 29.8 mm × 4.5 mm outline, a supply voltage range of –0.5 V to +4.0 V (logic) and –0.5 V to +6.5 V (LCD), and operating temperatures from –10 °C to +50 °C.
| Outline dimensions | 74.5 mm × 29.8 mm × 4.5 mm |
|---|---|
| Viewing area | 61.0 mm × 15.8 mm |
| Active area | 56.20 mm × 11.50 mm |
| Display format | 16 characters (5 × 8 dots) × 2 lines |
| Driving IC | PHILIPS PCF2119RU/2/F2 COG controller |
| Backlight type | White LEDOS |
| Supply voltage range (Logic) | -0.5 V to +4.0 V |
| Input voltage range (LCD) | -0.5 V to +6.5 V |
| Weight | Approx. 13.0 g |
It uses an I²C‑compatible data interface (listed as I°C‑bus).
The module displays 16 characters per line in a 5 × 8 dot matrix, with 2 lines total.
The logic supply voltage may range from –0.5 V to +4.0 V, and the LCD input voltage from –0.5 V to +6.5 V.