Preliminary PT16598 Automotive Digital Clock IC With LCD Driver DESCRIPTION FEATURES PT16598 is an automotive digital clock CMOS LSI. It drives LCD panel directly. It can be driven by a 4.194304MHz crystal oscillator. And provide the 12/24 hour display system. 1/2 Duty – 1/2 Bias Drive Technique 4.194304MHz crystal oscillator Hour and Minutes setting 12/24 hour time display mode 8Hz signal output Internal VDET (Voltage Detection Type Reset Circuit) Time accuracy correction Power supply voltage: 2.4V to 5.5V 12/24 hour time display mode Operating temperature: -40~105℃ Package: 44-LQFP 4Hz / 1Hz set mode BLOCK DIAGRAM VLCD2 VLCD1 VLCD BP1-BP2 Segment drivers to LCD VDD VDD VDET FLASH Display Drive Control VDD AC VDD VSS VDD MODE Segment Decoder BLANK KEY_SET S1 VDD S2 VDD Hour 5bit Counter Timing adjustment VDD Chattering Prevention Circuit VDD Min. 6bit Counter Sec. 6bit Counter VDD TS TST VSS ENABLE OSC IN Timing generator with time accuracy correction divider VDD OSC OUT VSS Chattering Prevention Circuit VDD ADJ6 VDD ADJ5 VDD ADJ4 ADJ3 VDD ADJ2 VDD MCLK ADJ1 VDD Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, No. 233-1, Baociao Rd., Sindian Dist., New Taipei City 23145, Taiwan PT16598 APPLICATION CIRCUIT Note: R=1~10K C=0.1~0.47μF PRE1.6 2 October 2014 PT16598 ORDER INFORMATION Valid Part Number PT16598-LQ Package Type 44-pin, LQFP Top Code PT16598-LQ PRE1.6 NC NC KEY_SET TST MCLK ADJ6 ADJ5 ADJ4 ADJ3 ADJ2 ADJ1 PIN CONFIGURATION 44 43 42 41 40 39 38 37 36 35 34 S1 1 33 NC AC 2 32 VLCD OSC IN 3 31 VLCD1 OSC OUT 4 30 VLCD2 VSS 5 29 BP1 MODE 6 28 BP2 BLANK 7 27 AM/PM TS 8 26 A2/ADEG1 ENABLE 9 25 B1/C1 VDD 10 24 F2/E2 NC 11 23 G2/D2 3 B4/C4 G4/D4 F4/E4 18 19 20 21 22 NC S2 17 B2/C2 16 A4/COL 15 F3/E3 14 G3/AD3 13 B3/C3 12 FLASH PT16598-LQ October 2014 PT16598 PIN DESCRIPTION PRE1.6 Description Pin No Pin Name I/O S1 I Hour Adjustment Input 1 AC I All Clear Input 2 OSC IN I Oscillator Input 3 OSC OUT O Oscillator Output 4 VSS - Ground Pin 5 MODE I 12/24-Hour Mode Select Input 6 BLANK I LCD Display On/Off Control Signal 7 TS I Test Pin. Test Scan Clock Pin 8 ENABLE I Enable Input(For S1 And S2) 9 VDD - Power Supply Input Pin For Logic Part 10 NC - NC Pin FLASH I Colon Option Input 12 S2 I Minute Adjustment Input 13 B4/C4 O Segment Driver 14 G4/D4 O Segment Driver 15 F4/E4 O Segment Driver 16 B3/C3 O Segment Driver 17 G3/AD3 O Segment Driver 18 F3/E3 O Segment Driver 19 A4/COL O Segment Driver 20 B2/C2 O Segment Driver 22 G2/D2 O Segment Driver 23 F2/E2 O Segment Driver 24 B1/C1 O Segment Driver 25 A2/ADEG1 O Segment Driver 26 AM/PM O Segment Driver 27 BP2 O Backplane2 28 BP1 O Backplane1 29 VLCD2 - The Current Of Bias Voltage Generation Circuit Adjust Input 30 VLCD1 I/O LCD Driver 1/2 Bias Supply Pin 31 VLCD I/O Power Supply Input Pin For LCD Driver Part 32 ADJ1~6 I MCLK O TST I KEY_SET I 11, 21, 33 43~44 Time Accuracy Correct Control Input Clock of 8Hz frequency is generated when using 4.194304MHz crystal Test Scan Mode Select Input Customer should connect this pin to VSS or floating. "H" level: ATPG Mode, “L” level: Normal Mode. 4HZ/1Hz set mode select 4 34~39 40 41 42 October 2014 PT16598 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 PRE1.6 17 October 2014