NXP Semiconductors PCA8534A
The PCA8534A 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 and up to 60 segments. It can be easily cascaded for larger LCD applications.FEATURES AND BENEFITS
● AEC-Q100 compliant for automotive applications● Single-chip LCD controller and driver
● Selectable backplane drive configurations: static, 2, 3, or 4 backplane multiplexing
● 60 segment outputs allowing to drive:
● 30 7-segment alphanumeric characters
● 15 14-segment alphanumeric characters
● Any graphics of up to 240 elements
● Cascading supported for larger applications
● 60 4-bit display data storage RAM
● Wide LCD supply range: from 2.5 V for low threshold LCDs up to 6.5 V for high threshold twisted nematic LCDs
● Internal LCD bias generation with voltage follower buffers
● Selectable display bias configurations: static, 1⁄2, or 1⁄3
● Wide logic power supply range: from 1.8 V to 5.5 V
● LCD and logic supplies may be separated
● Low power consumption
● 400 kHz I2C-bus interface
● No external components required
● Display memory bank switching in static and duplex drive modes
● Versatile blinking modes
● Silicon gate CMOS process 1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 20.