PT6593 Multifunction LCD Segment Drivers FEATURES LCD drive output: Common output: 4, Segment output : 49 Integrated Display data RAM (DDRAM): RAM:49x4 bit Integrated 3ch LED driver circuit 3-wire Serial interface (SD, SCL, CSB) Segment/LED (Max 3 ports) output mode selectable Segment/GPO (Max 31 ports) output mode selectable Support PWM generation from ext. or internal clock (Resolution: 8 bits mode/12 bits mode selectable) Integrated Oscillator circuit Integrated LCD Voltage generator circuit Support: 1/3 Bias, 1/3 or 1/4 Duty Support: 1/1 Bias, 1/1Duty (Static Driving) Bias: Static, 1/3 Integrated regulator for LCD driver: 3.2, 3.3, 3.4, 4.4, 4.5, 4.6, 5.0V selectable Integrated buffer amp Support separate power supply for Logic (VDD) and LCD (VLCD) Low power consumption Support standby mode Integrated Power-On-Reset circuit (POR) No external components Support Blink function (Blink frequency 1.6, 2.0, 2.6, 4.0Hz selectable) Operating power supply: 1.8 ~ 3.6V LCD drive power supply: 3.3 ~ 5.5V APPLICATIONS Telephone, FAX, Portable equipment (POS, ECR, PDA etc.) DSC, DVC, Car audio, Home electrical appliance, Meter equipment etc. BLOCK DIAGRAM Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, No. 233-1, Baociao Rd., Sindian Dist., New Taipei City 23145, Taiwan PT6593 APPLICATION CIRCUIT LED/GPO USING CASE SEG OUTPUT ONLY CASE V1.2 2 April 2014 PT6593 ORDER INFORMATION Valid Part Number PT6593-LQ Package Type 64 Pins, LQFP Top Code PT6593-LQ PIN CONFIGURATION (TOP VIEW) PIN DESCRIPTION Pin Name CSB SCL SD VDD TEST1 VSS1 I/O I I I I - Unused case GND INHb I VDD VLCD COM0~COM3 SEG0~SEG14 SEG15~SEG45 SEG46~SEG48 VSS2 PWMOUT O O O O O OPEN OPEN OPEN OPEN GND OPEN CLKIN I OPEN/VSS V1.2 Description Chip select: "L" active Serial data transfer clock Input serial data Power supply for LOGIC Test terminal (Please connect VSS terminal) GND Display turning on/off select terminal H: turning on display, L: turning off display INHb=“L”: All SEG/COM terminal: output VSS level GPO terminal: output VSS level LED drive terminal: output Hi-Z Power supply for LCD COMMON output for LCD SEGMENT output for LCD SEGMENT output for LCD/GPO SEGMENT output for LCD/LED driver GND(for SEG46~48/LED driver) PWM Output for LED2 group External clock input terminal (for display/PWM using selectable) The internal pull down resistor is activated at internal clock mode 3 Pin No. 1 2 3 4 5 6 7 8 9~12 13~27 28~58 59~61 62 63 64 April 2014 PT6593 IMPORTANT NOTICE Princeton Technology Corporation (PTC) reserves the right to make corrections, modifications, enhancements, improvements, and other changes to its products and to discontinue any product without notice at any time. PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No circuit patent licenses are implied. Princeton Technology Corp. 2F, 233-1, Baociao Road, Sindian Dist., New Taipei City 23145, Taiwan Tel: 886-2-66296288 Fax: 886-2-29174598 http://www.princeton.com.tw V1.2 29 April 2014