The PCF8531 is a low-power CMOS LCD row and column driver, designed to drive dot matrix graphic displays at multiplex rates of 1:17, 1:26, and 1:34. Furthermore, it can drive up to 128 icons. All necessary functions for the display are provided in a single chip, including on-chip generation of VLCD and the LCD bias voltages, resulting in a minimum of external components and low power consumption. The PCF8531 is compatible with most microcontrollers and communicates via a two-line bidirectional I²C-bus. All inputs are CMOS compatible.
Remark:The icon mode is used to reduce current consumption. When only icons are displayed, a much lower operating voltage (VLCD) can be used and the switching frequency of the LCD outputs is reduced. In most applications it is possible to use VDD as VLCD.
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Part | Order | CAD Model | Package Type | Type Classification | LCD graphic driver display rows | LCD graphic driver display columns | LCD graphic driver display format | I2C-bus | VDD1 [min] (V) | VDD1 [max] (V) | VDD2 [min] (V) | VDD2 [max] (V) | VLCD [min] (V) | VLCD [max] (V) | ffr | Failures in time | Mean time between failures |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
UC | LCD Graphic Drivers | 34, 26, 17 | 128 | 34x128 or 33x128 & 1280 icons | Y | 1.8 | 5.5 | 2.5 | 5.5 | 4 | 9 | 82.0 | 5 | 200000000 |
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