PT6398 Automotive Digital Clock 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 BLOCK DIAGRAM Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan PT6398 APPLICATION CIRCUITS DYNAMIC MODE STATIC MODE V1.1 2 November 2010 PT6398 ORDER INFORMATION Valid Part Number PT6398-LQ Package Type 44 Pins, LQFP Top Code PT6398-LQ PIN CONFIGURATION V1.1 3 November 2010 PT6398 PIN DESCRIPTION Pin Name 1C 3A, 1A 1D 3B, 1B 1E 3F, 1F 1G 3G, 1G 2C 3C, 1C 2E 3E,1E 2G 3D, 1D 3C 2G 3D 2E 3E COL, 2C 3G 2F 4B, 4C 4B, 4C, 2B NC 2A, 2D NC GR1 NC GR2 /HS /MS /RES I/O O O O O O O O O O O O O O O O O O O O O O O O O O O O I I I /BLK I CLOUT O VSS XOUT XIN 3F NC 3A NC 3B NC COL NC 2F NC I I I O O O O O - V1.1 Description STATIC SEGMENT OUTPUT DYNAMIC SEGMENT OUTPUT STATIC SEGMENT OUTPUT DYNAMIC SEGMENT OUTPUT STATIC SEGMENT OUTPUT DYNAMIC SEGMENT OUTPUT STATIC SEGMENT OUTPUT DYNAMIC SEGMENT OUTPUT STATIC SEGMENT OUTPUT DYNAMIC SEGMENT OUTPUT STATIC SEGMENT OUTPUT DYNAMIC SEGMENT OUTPUT STATIC SEGMENT OUTPUT DYNAMIC SEGMENT OUTPUT STATIC SEGMENT OUTPUT DYNAMIC SEGMENT OUTPUT STATIC SEGMENT OUTPUT DYNAMIC SEGMENT OUTPUT STATIC SEGMENT OUTPUT DYNAMIC SEGMENT OUTPUT STATIC SEGMENT OUTPUT DYNAMIC SEGMENT OUTPUT STATIC SEGMENT OUTPUT DYNAMIC SEGMENT OUTPUT NO CONNECT DYNAMIC SEGMENT OUTPUT NO CONNECT DYNAMIC GRID1 OUTPUT NO CONNECT DYNAMIC GRID2 OUTPUT HOUR ADJUST INPUT MINUTE ADJUST INPUT RES INPUT (30 minutes auto correction input) BLANKING INPUT When this pin is low state, FIP is off and the operation of HS, MS, RES, switch is blocking, or vice versa CLOCK OUTPUT Clock of 1024Hz frequency is generated when using 4.194304 MHz crystal GROUND OSCILLATOR OUTPUT(4.194304 MHz Crystal Output) OSCILLATOR INPUT(4.194304 MHz Crystal Input) STATIC SEGMENT OUTPUT NO CONNECT STATIC SEGMENT OUTPUT NO CONNECT STATIC SEGMENT OUTPUT NO CONNECT STATIC SEGMENT OUTPUT NO CONNECT STATIC SEGMENT OUTPUT NO CONNECT 4 Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 November 2010 PT6398 Pin Name 2A, 2D NC 2B NC 1F NC 1A NC 1B NC I/O O O O O O - DS1, DS2 I COLSEL SWM TEST SDE AC I I I I I CLK I VDDIN VDDOUT VCC I O I V1.1 Description STATIC SEGMENT OUTPUT NO CONNECT STATIC SEGMENT OUTPUT NO CONNECT STATIC SEGMENT OUTPUT NO CONNECT STATIC SEGMENT OUTPUT NO CONNECT STATIC SEGMENT OUTPUT NO CONNECT DIMMER INPUT1, DIMMER INPUT2 This PIN controls the brightness of FIP. Duty of segment & GRID output is determined depend on the level of DS1, DS2 This is the input pin for selecting flashing or lighting of the colon output SWITCH MODE SELECT PIN TEST PIN STATIC DYNAMIC DRIVING SELECT PIN RESET INPUT (POWER ON RESET INPUT PIN) External Clock Input, only test mode. External clock of 1024Hz frequency can drive the IC operation This pin is logic power supply input pin This pin is regulator voltage output POWER SUPPLY INPUT PIN 5 Pin No. 29 30 31 32 33 34, 35 36 37 38 39 40 41 42 43 44 November 2010 PT6398 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, Taipei 23145, Taiwan Tel: 886-2-66296288 Fax: 886-2-29174598 http://www.princeton.com.tw V1.1 13 November 2010