PCF8551 Universal 36 × 4 LCD segment driver Product data sheet
■PCF8551 is an ultra low-power LCD segment driver with 4 backplane- and 36 segment-driver outputs, with either an I²C- (PCF8551A) or an SPI-bus (PCF8551B) interface.It comprises an internal oscillator, bias generation, instruction decoding, and display controller.
■Features and benefits
■Single chip LCD controller and driver with temperature range of -40 °C to 85 °C
■Selectable backplane drive configuration: static, 2, 3, or 4 backplane multiplexing
■Selectable display bias configuration: static, 1⁄2, or 1⁄3
■ Internal LCD bias generation with buffers
■36 segment drives:
▲Up to 18 7-segment numeric characters
▲Up to 9 14-segment alphanumeric characters
▲Any graphics of up to 144 segments/elements
■Auto-incrementing display data and instruction loading
■ Versatile blinking modes
■Independent supplies of V-LCD and V-DD
■Power supply ranges:
▲1.8 V to 5.5 V for V-LCD
▲1.8 V to 5.5 V for V-DD
■Ultra low-power consumption
■400 kHz I²C-bus interface (PCF8551A)
■5 MHz SPI-bus interface (PCF8551B)
■Internally generated or externally supplied clock signal
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PCF8551 、 PCF8551ATT/A 、 PCF8551BTT/A 、 PCF8551A 、 PCF8551B 、 PCF8551ATT/AJ 、 PCF8551ATT/AY 、 PCF8551BTT/AJ 、 PCF8551BTT/AY 、 PCF8551ATT 、 PCF8551BTT |
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[ Metering equipment ][ Consumer healthcare devices ][ Battery operated devices ][ Measuring equipment ] |
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Datasheet |
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Please see the document for details |
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TSSOP48;SOT362-1 |
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English Chinese Chinese and English Japanese |
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3 May 2021 |
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Rev. 3.1 |
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PCF8551 |
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646 KB |
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