This document describes the features and characteristics of PCF2119X LCD controllers/drivers.
The PCF2119X is a single‑chip LCD controller and driver that supports a 2‑line display of up to 16 characters plus 160 icons, or a 1‑line display of up to 32 characters plus 160 icons. It includes on‑chip LCD bias and voltage generators, an internal oscillator, and both 4/8‑bit parallel and 2‑wire I²C interfaces, reducing external component count and power consumption.
The datasheet provides detailed functional descriptions, pad assignments, timing characteristics, and ordering information for the various package types (AU, DU, FU, RU, SU, VU). It also lists electrical specifications such as supply voltage ranges, current consumption, and multiplex rates.
| Display capacity | 2‑line up to 16 characters + 160 icons, or 1‑line up to 32 characters + 160 icons |
|---|---|
| Display Data RAM | 80 characters |
| Character Generator ROM | 240 characters (5 × 8) |
| Character Generator RAM | 16 characters (5 × 8) |
| Display supply voltage range (Vicp) | 2.2 V to 6.5 V |
| High‑voltage generator supply range | 2.2 V to 4 V |
| Multiplex rates | 1:18 (normal), 1:9 (single line), 1:2 (icon‑only) |
| Current consumption (icon mode) | <25 pA (leon mode), <2 µA (power‑down) |
It can display up to 16 characters per line on a 2‑line display or 32 characters on a 1‑line display, plus up to 160 icons.
In leon mode the current is less than 25 pA, and in power‑down mode it is less than 2 µA.