PCF8551 Universal 36 4 LCD segment driver Rev. 3.1 3 May 2021 Product data sheet 1 General description PCF8551 is an ultra low-power LCD segment driver with 4 backplane- and 36 segment- 2 driver outputs, with either an I C- (PCF8551A) or an SPI-bus (PCF8551B) interface. It comprises an internal oscillator, bias generation, instruction decoding, and display controller. For a selection of NXP LCD segment drivers, see Table 23. 2 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 1 1 Selectable display bias configuration: static, , or 2 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 and V LCD 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 2 400 kHz I C-bus interface (PCF8551A) 5 MHz SPI-bus interface (PCF8551B) Internally generated or externally supplied clock signal 3 Applications Metering equipment Consumer healthcare devices Battery operated devices Measuring equipmentNXP Semiconductors PCF8551 Universal 36 4 LCD segment driver 4 Ordering information Table 1.Ordering Information Product type Number Topside mark Package Name Description Version PCF8551ATT/A PCF8551A TSSOP48 plastic thin shrink small outline SOT362-1 package 48 leads body width 6.1 mm PCF8551BTT/A PCF8551B TSSOP48 plastic thin shrink small outline SOT362-1 package 48 leads body width 6.1 mm 4.1 Ordering options Table 2.Ordering options Product type Orderable part Package Packing method Minimum order Temperature Number number quantity 1 PCF8551ATT/A PCF8551ATT/AJ TSSOP48 Reel 13 Q1 NDP 2000 T = -40 C to amb +85 C 2 PCF8551ATT/AY TSSOP48 Reel 13 Q1 DP 2000 T = -40 C to amb +85 C 1 PCF8551BTT/A PCF8551BTT/AJ TSSOP48 Reel 13 Q1 NDP 2000 T = -40 C to amb +85 C 2 PCF8551BTT/AY TSSOP48 Reel 13 Q1 DP 2000 T = -40 C to amb +85 C 1 Not recommend for new design - will be discontinued in mid 2021 - use new version with improved package. 2 Improved package - refer to PCN 202005038F01 PCF8551 All information provided in this document is subject to legal disclaimers. NXP B.V. 2021. All rights reserved. Product data sheet Rev. 3.1 3 May 2021 2 / 51