PT6314_10 Datasheet, PDF (2/42 Pages) Princeton Technology Corp – Dot Character VFD Controller/Driver IC

PT6314
CONTENTS
1. APPLICATION CIRCUITS ........................................................................................................................................ 3
1.1 SERIAL INTERFACE ........................................................................................................................................... 3
1.2 i80 INTERFACE ................................................................................................................................................... 3
1.3 M68 INTERFACE ................................................................................................................................................. 4
2. ORDER INFORMATION ........................................................................................................................................... 5
3. PIN CONFIGURATION ............................................................................................................................................. 5
4. PIN DESCRIPTION................................................................................................................................................... 6
4.1 DUTY RATIO SETTING ....................................................................................................................................... 8
4.2 SEGMENT SETTING ........................................................................................................................................... 8
4.3 VFD DISPLAY .................................................................................................................................................... 14
5. FUNCTION DESCRIPTION .................................................................................................................................... 15
5.1 BLOCK FUNCTIONS ......................................................................................................................................... 15
5.2 DISPLAY DATA RAM (DDRAM) ........................................................................................................................ 16
5.3 CHARACTER GENERATOR ROM (CGROM) .................................................................................................. 18
5.4 CHARACTER GENERATOR RAM (CGRAM) ................................................................................................... 18
5.5 TIMING GENERATION CIRCUIT ...................................................................................................................... 19
5.6 VFD DRIVER CIRCUIT ...................................................................................................................................... 19
5.7 CURSOR/BLINK CONTROL CIRCUIT .............................................................................................................. 19
5.8 CPU INTERFACE (DATA TRANSFER) ............................................................................................................. 20
6. INSTRUCTIONS ..................................................................................................................................................... 23
6.1 “CLEAR DISPLAY” INSTRUCTION ................................................................................................................... 23
6.2 “CURSOR/ HOME” INSTRUCTION .................................................................................................................. 24
6.3 “ENTRY MODE” INSTRUCTION ....................................................................................................................... 24
6.4 “DISPLAY ON/OFF” INSTRUCTION.................................................................................................................. 25
6.6 “FUNCTION SET” I INSTRUCTION................................................................................................................... 26
6.7 “CGRAM ADDRESS SET” INSTRUCTION ....................................................................................................... 27
6.8 “DDRAM ADDRESS SET INSTRUCTION ........................................................................................................ 27
6.9 “READ BUSY FLAG AND ADDRESS” INSTRUCTION .................................................................................... 27
6.10 “WRITE DATA TO CGRAM OR DDRAM” INSTRUCTION ............................................................................. 27
6.11 “READ DATA FROM CGRAM OR DDRAM” INSTRUCTION ......................................................................... 28
6.12 POWER ON RESET......................................................................................................................................... 28
6.13 CGRAM STROKE FLOWCHART .................................................................................................................... 29
6.14 DDRAM STROKE FLOWCHART .................................................................................................................... 29
7. ABSOLUTE MAXIMUM RATINGS ......................................................................................................................... 30
8. RECOMMENDED OPERAING RANGE ................................................................................................................. 30
9. ELECTRICAL CHARACTERISTICS....................................................................................................................... 31
10. SWITCHING CHARACTERISTICS ........................................................................................................................ 31
11. SWITCHING TIMING .............................................................................................................................................. 32
11.1 TIMING 1 REQUIREMENTS ............................................................................................................................ 32
11.2 TIMING 2 REQUIREMENTS ............................................................................................................................ 34
11.3 TIMING 3 REQUIREMENTS ............................................................................................................................ 35
11.4 TIMING 4 REQUIREMENTS ............................................................................................................................ 36
12. FONT TABLE .......................................................................................................................................................... 37
12.1 ENGLISH/JAPANESE CHARACTER FONT TABLE (PT6314-001) ............................................................... 37
12.2 ENGLISH /EUROPEAN CHARACTER FONT TABLE (PT6314-002) ............................................................. 38
12.3 UROPEAN CHARACTER FONT TABLE (PT6314-007) ................................................................................. 39
12.4 JAPANESE CHARACTER FONT TABLE (PT6314-008) ................................................................................ 40
13. PACKAGE INFORMATION .................................................................................................................................... 41
IMPORTANT NOTICE ..................................................................................................................................................... 42
V1.5
2
October 2009