PCA8543AHL/A518

The PCA8543 is a peripheral device which interfaces to almost any Liquid Crystal Display (LCD) with low multiplex rates. It generates the drive signals for any static or multiplexed LCD containing up to four backplanes, 60 segments, and up to 240 elements. The PCA8543 is compatible with most microcontrollers and communicates via the two-line bidirectional I�C-bus. Communication overheads are minimized using a display RAM with auto-incremented addressing and display memory switching. The PCA8543 features an internal charge pump with internal capacitors for on-chip generation of the LCD driving voltages.

x 60 automotive LCD segment driver with integrated charge pump

The is a peripheral device which interfaces to almost any Liquid Crystal Display (LCD)1 with low multiplex rates. It generates the drive signals for any static or multiplexed LCD containing up to four backplanes, 60 segments, and to 240 elements. The PCA8543 is compatible with most microcontrollers and communicates via the two-line bidirectional I2C-bus. Communication overheads are minimized using a display RAM with auto-incremented addressing and display memory switching. The PCA8543 features an internal charge pump with internal capacitors for on-chip generation of the LCD driving voltages. For a selection of NXP LCD segment drivers, see Table 40 on page 59.

AEC Q100 grade 2 compliant for automotive applications Low power consumption Extended operating temperature range from C 60 segments and 4 backplanes allowing to drive: 30 7-segment alphanumeric characters 15 14-segment alphanumeric characters any graphics to 240 elements Selectable backplane drive configuration: static, or 4 backplane multiplexing Programmable internal charge pump for on-chip LCD voltage generation VDD2 400 kHz I2C-bus interface Selectable linear temperature compensation of VLCD Selectable display bias configuration Wide range for digital and analog power supply: from 5.5 V Wide LCD supply range: from 2.5 V for low threshold LCDs and 9.0 V for high threshold (automobile) twisted nematic LCDs On-chip RAM for display data storage arranged in two banks Display memory bank switching Programmable frame frequency in steps Hz in the range to 300 Hz; factory calibrated with a tolerance 15 % covering the whole temperature and voltage range Selectable inversion scheme for LCD driving waveforms: frame or line inversion

The definition of the abbreviations and acronyms used in this data sheet can be found in Section 19 on page 62.

x 60 automotive LCD segment driver with integrated charge pump

Integrated temperature sensor with temperature readout On chip calibration of internal oscillator frequency and VLCD

Instrument cluster Car radio Climate control units

Table 1. Ordering information Package Name PCA8543AHL LQFP80 Description plastic low profile quad flat package; 80 leads; body 1.4 mm Version SOT315-1 Type number

Table 2. Ordering options Sales item (12NC) 935303762518 Orderable part number PCA8543AHL/AY IC revision 1 Delivery form tape and reel, 13 inch, dry pack Product type number PCA8543AHL/A

Table 3. Marking codes Marking code PCA8543AHL Type number PCA8543AHL
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x 60 automotive LCD segment driver with integrated charge pump
(1) The charge pump can generate a maximum output voltage 3 VDD2.

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