Tel: 886-2-66296288 Fax:886-2-29174598 URL:http://www.princeton.com.tw Automotive Digital Clock PT6398 DESCRIPTION PT6398 is an automotive digital clock CMOS LSI. It drives fluorescent indicator panel directly. It can be driven by a 4.194304MHz crystal oscillator or an external clock signal (1024Hz). It has 4-ways display brightness control function and its display format is 12 hours. FEATURES • 4.194304MHz crystal oscillator • 4-ways display brightness control (Segment duty for Static: 1, 1/4, 1/8, 1/16; Grid duty for dynamic: 6.25%, 12.5%, 25%, 50%) • Hour and Minutes setting • ±30 Minutes auto correction • 1024Hz signal output • Segment output: CMOS output • Internal POR (Power on Reset Circuit) • 44 pin LQFP • Static and dynamic driving selected PT6398 V1.0 -1- March, 2008 Tel: 886-2-66296288 Fax:886-2-29174598 URL:http://www.princeton.com.tw Automotive Digital Clock PT6398 34 DS1 35 DS2 37 SWM 36 COLSEL 38 TEST 39 SDE 40 AC 41 CLK 42 VDDIN 43 VDDOUT 44 VCC 34 DS1 35 DS2 37 SWM 36 COLSEL 38 TEST 39 SDE 40 42 VDDIN 41 CLK 44 VCC 43 VDDOUT PIN CONFIGURATION 1C 1 33 1B 3A/1A 1 33 NC 1D 2 32 1A 3B/1B 2 32 NC 1E 3 31 1F 3F/1F 3 31 NC 4 30 29 NC 1G 4 30 3G/1G 2C 5 29 2A,2D 3C/1C 5 28 2F 3E/1E 6 PT6398 28 NC 27 COL 3D/1D 7 Dynamic 27 NC --/2G 8 26 9 25 NC PT6398 V1.0 -2- 22 XOUT CLOUT 21 19 20 /BLK VSS 18 16 /HS 17 15 GR2 /MS 14 /RES 13 23 XIN GR1 24 NC 11 -/2A,2D 22 10 12 21 VSS XOUT COL/2C 4B,4C/2B 19 20 /BLK 18 /RES CLOUT 17 23 XIN 16 24 3F 11 /HS 10 /MS 3E 15 25 3A 14 26 9 NC 8 3D NC 3C 13 Static 12 PT6398 7 NC 6 4B,4C 2E 2G March, 2008 Tel: 886-2-66296288 Fax:886-2-29174598 URL:http://www.princeton.com.tw Automotive Digital Clock PT6398 APPLICATION CIRCUIT 1 DYNAMIC MODE PT6398 V1.0 -3- March, 2008 Tel: 886-2-66296288 Fax:886-2-29174598 URL:http://www.princeton.com.tw Automotive Digital Clock PT6398 APPLICATION CIRCUIT 2 STATIC MODE PT6398 V1.0 -4- March, 2008 Tel: 886-2-66296288 Fax:886-2-29174598 URL:http://www.princeton.com.tw Automotive Digital Clock PT6398 ORDER INFORMATION Valid Part Number PT6398-LQ PT6398 V1.0 Package Type 44 Pins, LQFP -5- Top Code PT6398-LQ March, 2008