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PCF8579T/1 Datasheet(PDF) 1 Page - NXP Semiconductors |
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PCF8579T/1 Datasheet(HTML) 1 Page - NXP Semiconductors |
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1 / 41 page  1. General description The PCF8579 is a low power CMOS1 LCD column driver, designed to drive dot matrix graphic displays at multiplex rates of 1:8, 1:16, 1:24 or 1:32. The device has 40 outputs and can drive 32 × 40 dots in a 32 row multiplexed LCD. Up to 16 PCF8579s can be cascaded and up to 32 devices may be used on the same I2C-bus (using the two slave addresses). The device is optimized for use with the PCF8578 LCD row/column driver. Together these devices form a general purpose LCD dot matrix driver chip set, capable of driving displays of up to 40960 dots. The PCF8579 is compatible with most microcontrollers and communicates via a two-line bidirectional bus (I2C-bus). To allow partial VDD shutdown the ESD protection system of the SCL and SDA pins does not use a diode connected to VDD. Communication overhead is minimized by a display RAM with auto-incremented addressing and display bank switching. 2. Features I LCD column driver I Used in conjunction with the PCF8578, this device forms part of a chip set capable of driving up to 40960 dots I 40 column outputs I Selectable multiplex rates; 1:8, 1:16, 1:24 or 1:32 I Externally selectable bias configuration, 5 or 6 levels I Easily cascadable for large applications (up to 32 devices) I 1280-bit RAM for display data storage I Display memory bank switching I Auto-incremented data loading across hardware subaddress boundaries (with PCF8578) I Power-On Reset (POR) blanks display I Logic voltage supply range 2.5 V to 6 V I Maximum LCD supply voltage 9 V I Low power consumption I I2C-bus interface I Compatible with most microcontrollers I Optimized pinning for single plane wiring in multiple device applications (with PCF8578) I Space saving 56-lead small outline package and 64-pin quad flat pack PCF8579 LCD column driver for dot matrix graphic displays Rev. 05 — 11 May 2009 Product data sheet 1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 15. |
Similar Part No. - PCF8579T/1 |
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Similar Description - PCF8579T/1 |
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