PT6533 General Purpose LCD Driver DESCRIPTION PT6533 is a general purpose LCD Driver IC utilizing CMOS technology specially designed with character and graphical displays. It provides1/4 duty, 1/8 duty and can drive up to a maximum of 232 segments drivers. Housed in a 44-pin LQFP package, PT6533 can directly display the display data without any decoder intervention, thereby providing a high level of generality. Built-in display contrast adjustment circuit, independent LCD drive block power supply and serial data control of the power saving mode based on the backup function as well as all segments forced OFF functions are incorporated into a single chip having the highest performance and reliability. Pin assignments and application circuits are optimized for easy PCB layout and cost saving benefits. FEATURES • CMOS technology • Wide variety of bias drive techniques: - 1/8 duty, 1/4 bias drive technique: (232 segments max.) - 1/4 duty, 1/4 bias drive technique: (132 segments max.) • RC oscillation circuit • Direct display of display data without any decoder intervention • Serial data control of the power saving mode based backup function • Available in C.O.B. or 44-pin LQFP packages APPLICATIONS • Car Audio display • Consumer display • Household electronic application BLOCK DIAGRAM Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan PT6533 APPLICATION CIRCUITS 1/8 DUTY, 1/4 BIAS DRIVE TECHNIQUE (FOR NORMAL PANEL USE) V1.1 2 March 2012 PT6533 ORDER INFORMATION Valid Part Number PT6533-LQ PT6533-H Package Type 44 Pins, LQFP C.O.B. Top Code PT6533-LQ - PIN CONFIGURATION PIN DESCRIPTION Pin Name SG1 ~ SG29 COM8/SG30 ~ COM5/SG33 COM1 ~ COM4 VLCD VSS OSC VDD CE CLK DI V1.1 I/O O Description Segment driver output pin Pin No. 1 ~ 29 O Common direct outputs/segment direct outputs 30 ~ 33 O I/O I I I Common driver output pin LCD driver block power supply Ground pin Oscillator input/output pin Logic power supply Chip enable input pin Clock input pin Data input pin 37 ~ 34 38 39 40 41 42 43 44 3 March 2012