PCF85176H/1,518

PCF85176 40 x 4 universal LCD driver for low multiplex rates Rev. 5 — 6 January 2015 Product data sheet 1. General description The PCF85176 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 40 segments. It can be easily cascaded for larger LCD applications. The PCF85176 is compatible with most microcontrollers and communicates via the two-line bidirectional I2C-bus. Communication overheads are minimized by a display RAM with auto-incremented addressing, by hardware subaddressing, and by display memory switching (static and duplex drive modes). For a selection of NXP LCD segment drivers, see Table 24 on page 49. 2. Features and benefits                  1. Single chip LCD controller and driver 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 voltage-follower buffers 40 segment drives:  Up to 20 7-segment numeric characters  Up to 10 14-segment alphanumeric characters  Any graphics of up to 160 segments/elements 40  4-bit RAM for display data storage Auto-incremented display data loading across device subaddress boundaries Display memory bank switching in static and duplex drive modes Versatile blinking modes Independent supplies possible for LCD and logic voltages Wide power supply range: from 1.8 V to 5.5 V Wide logic LCD supply range:  From 2.5 V for low-threshold LCDs  Up to 6.5 V for guest-host LCDs and high-threshold twisted nematic LCDs Low power consumption 400 kHz I2C-bus interface May be cascaded for large LCD applications (up to 2560 segments/elements possible) No external components required Manufactured in silicon gate CMOS process The definition of the abbreviations and acronyms used in this data sheet can be found in Section 21. PCF85176 NXP Semiconductors 40 x 4 universal LCD driver for low multiplex rates 3. Ordering information Table 1. Ordering information Type number Package Name Description Version PCF85176H TQFP64 plastic thin quad flat package, 64 leads; body 10  10  1.0 mm SOT357-1 PCF85176T TSSOP56 plastic thin shrink small outline package, 56 leads; body width 6.1 mm SOT364-1 3.1 Ordering options Table 2. Ordering options Product type number Sales item (12NC) Orderable part number IC revision Delivery form PCF85176H/1 935290063518 PCF85176H/1,518 1 tape and reel, 13 inch, dry pack PCF85176T/1 935290075118 PCF85176T/1,118 1 tape and reel, 13 inch 4. Marking Table 3. PCF85176 Product data sheet Marking codes Product type number Marking code PCF85176H/1 PCF85176H PCF85176T/1 PCF85176T All information provided in this document is subject to legal disclaimers. Rev. 5 — 6 January 2015 © NXP Semiconductors N.V. 2015. All rights reserved. 2 of 57 PCF85176 NXP Semiconductors 40 x 4 universal LCD driver for low multiplex rates 5. Block diagram %3 %3 %3 %3 6WR6  9/&' %$&.3/$1( 2873876 ',63/$