PCA8546ATT/AY NXP

PCA8546 4 x 44 automotive LCD driver Rev. 2 29 September 2021 Product data sheet 1 General description The PCA8546 is a peripheral device which generates the drive signals for any multiplexed LCD containing up to four backplanes, and up to 176 elements. The PCA8546 is compatible with most microcontrollers and communicates via the two-line 2 bidirectional I C-bus (PCA8546A) or a three line unidirectional SPI-bus (PCA8546B). Communication overheads are minimized using a display RAM with auto-incremented addressing. For a selection of NXP LCD segment drivers, see Table 37. 2 Features and benefits AEC-Q100 grade 3 compliant for automotive applications Single-chip 176 elements LCD controller and driver Wide range for digital power supply: from 1.8 V to 5.5 V LCD supply range from 2.5 V up to 9 V LCD and logic supplies may be separated Low power consumption Four backplanes and selectable display bias configuration On-chip RAM for display data storage 2 400 kHz I C-bus interface (PCA8546A) 5 MHz SPI-bus interface (PCA8546B) Programmable frame frequency in the range of 60 Hz to 300 Hz in steps of about 10 Hz factory calibrated 176 segments driven allowing: up to 22 7-segment alphanumeric characters up to 11 14-segment alphanumeric characters any graphics of up to 176 elements Manufactured in silicon gate CMOS process Extended operating temperature range up to 95 C 3 Applications Climate control Car radio Dashboard displayNXP Semiconductors PCA8546 4 x 44 automotive LCD driver 4 Ordering information Table 1.Ordering information Type number Interface Topside Package type mark Name Description Version 2 PCA8546ATT/A I C-bus PCA8546ATT TSSOP56 plastic thin shrink small outline package 56 SOT364-1 leads body width 6.1 mm PCA8546BTT/A SPI-bus PCA8546BTT TSSOP56 plastic thin shrink small outline package 56 SOT364-1 leads body width 6.1 mm 4.1 Ordering options Table 2.Ordering options 1 Type number Orderable part number Package Packing method Minimum Temperature order quantity 2 PCA8546ATT/A PCA8546ATT/AJ reel 13 inch q1 non 2000 T = -40 C to +95 C TSSOP56 amb dry pack PCA8546ATT/AY TSSOP56 reel 13 inch q1 dry 2000 T = -40 C to +95 C amb pack 3 PCA8546BTT/A PCA8546BTT/AJ reel 13 inch q1 non 2000 T = -40 C to +95 C TSSOP56 amb dry pack PCA8546BTT/AY TSSOP56 reel 13 inch q1 dry 2000 T = -40 C to +95 C amb pack 1 Standard packing quantities and other packaging data are available at www.nxp.com/packages/. 2 Discontinuation Notice 202107021DN - drop in replacement is PCA8546ATT/AY - this is documented in PCN202102010F01. 3 Discontinuation Notice 202107021DN - drop in replacement is PCA8546BTT/AY - this is documented in PCN202102010F01. PCA8546 All information provided in this document is subject to legal disclaimers. NXP B.V. 2021. All rights reserved. Product data sheet Rev. 2 29 September 2021 2 / 60