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HT6750A Dataheets PDF



Part Number HT6750A
Manufacturers Holtek Semiconductor
Logo Holtek Semiconductor
Description Date Printer
Datasheet HT6750A DatasheetHT6750A Datasheet (PDF)

HT6750A Date Printer www.DataSheet4U.com Features · Operating voltage: 2.4V~5.5V · Operating current: < 3mA at 3.0V · Constant voltage output (1.8V±5%) at 2.4V~5.5V · 32K crystal oscillator (Internal capacitor and resistor) · Calendar and time adjustment · Date imprinting modes operating for driving lamp (1.8V/40mA) · LCD contrast can not distort at 2.4V~5.5V operating · LCD display drive 1/3 duty, 1/2 bias, frame frequency (Y/M/D, D/H/Min, Imprint off, M/D/Y, D/M/Y) · Mode is selected by cyc.

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HT6750A Date Printer www.DataSheet4U.com Features · Operating voltage: 2.4V~5.5V · Operating current: < 3mA at 3.0V · Constant voltage output (1.8V±5%) at 2.4V~5.5V · 32K crystal oscillator (Internal capacitor and resistor) · Calendar and time adjustment · Date imprinting modes operating for driving lamp (1.8V/40mA) · LCD contrast can not distort at 2.4V~5.5V operating · LCD display drive 1/3 duty, 1/2 bias, frame frequency (Y/M/D, D/H/Min, Imprint off, M/D/Y, D/M/Y) · Mode is selected by cyclically turning · 4 film printing times is selectable or external input is 42.67Hz · At power interrupt, data hold up > 1.0s control (30ms/45ms/60ms/external control) · Direct resetting system · Lamp output time control · Provides module test circuit (between VDD and VSS connect a 0.1mF capacitor) · Built-in power on reset function General Description The 6-Digital Timer is a camera data optical printer. Displaying and printing of data (Year Month Day/Day Hour: Minute/OFF/Month Day Year/Day Month Year) can be selected by mode selection. Date updating is a fully automatic calendar from the year 1998.1.1 to 2049.12.31. Block Diagram C O M 1 ~ C O M 3 T E S T 2 O S C I O S C O O s c illa to r D iv . 3 2 K D iv . 6 0 D iv . 6 0 S E G O R E S E M O D S E S E N E T T D iv . 3 2 K L C o n tro l C ir c u it D iv . 2 8 , 2 9 , 3 0 o r 3 1 D iv . 2 4 V D D V S S V . 2 V . 4 L C 1 L C 2 T D X Y e a r C o u n te r P r in t/L a m p C o n tro l M U X M U X M U X Im - P r in t M a r k L a m p S E G 1 S E G 1 5 Rev. 1.00 1 January 17, 2003 HT6750A Pad Assignment T E S T 2 L A M P www.DataSheet4U.com R . 6 T R 1 R . 4 T R 4 T R 3 T R 2 R . 5 V S S 1 V S S 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 S E G 1 1 1 5 S E G 1 2 C O M 1 S E G 1 S E G 2 S E G 3 S E G 4 S E G 5 S E G 6 S E G 7 S E G 8 S E G 9 S E G 1 0 D X T 4 7 4 6 4 5 4 9 4 8 4 4 4 3 4 2 4 1 4 0 3 9 3 8 3 7 3 6 3 5 3 4 3 3 3 2 R . 3 R . 2 R . 1 V . 2 L C 1 L C 2 V . 4 V D D V D D O S C I O S C O T E S T 1 R E S E T (0 , 0 ) 3 1 3 0 2 9 2 8 2 7 2 6 1 6 S E G 1 3 1 7 S E G 1 4 1 8 S E G 1 5 1 9 C O M 3 2 0 C O M 2 2 1 M O D E 2 2 S E L 2 3 S E T 2 4 S E G O N 2 5 Chip size: 2680 ´ 2460 (mm)2 Chip thickness=12 mil * The IC substrate should be connected to VSS in the PCB layout artwork. Pad Coordinates Pad 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 Rev. 1.00 X -1012.997 -1154.997 -1112.447 -1112.447 -1112.447 -1112.447 -1112.447 -1112.447 -1112.447 -1112.447 -1112.447 -1112.447 -1112.447 -820.147 -674.147 -526.147 -380.147 -232.147 -86.147 61.853 216.853 371.853 526.853 681.853 1095.853 Y 1050.624 952.474 781.274 612.274 429.374 260.374 77.474 -91.526 -274.426 -443.426 -626.326 -795.326 -978.226 -1019.426 -1019.426 -1019.426 -1019.426 -1019.426 -1019.426 -1019.426 -1018.926 -1018.926 -1018.926 -1018.926 -1039.226 2 Pad No. 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 X 1095.853 1095.853 1095.853 1128.153 1113.753 1094.353 1094.353 1094.353 1094.353 1124.553 1124.553 1124.553 1019.553 914.553 809.553 704.553 599.553 494.553 389.553 221.853 74.453 -71.247 -226.247 -487.887 Y Unit: mm -872.226 -704.226 -537.226 -388.926 -167.026 63.524 241.524 431.524 589.524 798.974 903.974 1008.974 1008.974 1008.974 1008.974 1008.974 1008.974 1008.974 1008.974 1016.974 1016.974 1016.974 1016.974 1001.224 January 17, 2003 HT6750A Pad Description Pad No. www.DataSheet4U.com 1, 2 3, 19, 20 4~18 21 22 23 24 25 26 27 28 29, 30 31 32, 33 34 35~40 41~44 45 46 47 48 49 Note: Pad Name VSS COM1 COM3, COM2 SEG1~SEG15 MODE SEL SET SEGON RESET TEST1 OSCO OSCI VDD VF4 LC2, LC1 VF2 RF1~RF6 TR1~TR4 T D X TEST2 LAMP I/O ¾ O O I I I I I I O I ¾ O I O I I I I I I O Internal Connection ¾ CMOS CMOS CMOS with Pull-high CMOS with Pull-high CMOS with Pull-high CMOS with Pull-high CMOS with Pull-low CMOS with Pull-low CMOS CMOS ¾ CMOS CMOS CMOS ¾ ¾ CMOS with Pull-high CMOS with Pull-high CMOS with Pull-high CMOS with Pull-high CMOS Description Negative power supply, ground Output for LCD panel common LCD segment output driver Mode select input pin (Internal pull-high 75K) Correction digit shift switch (Internal pull-high 75K) Correction digit data (Internal pull-high 75K) Est pin, if pull-low will force all segment ²ON² External Reset input (Internal pull-low, 50K) Test pin (not for customer) Crystal oscillator output pin Crystal oscillator input pin Positive power supply Double reference voltage Connected to 0.1mF capacitor Reference voltage Adjust regulator output voltage, TRIM PIN Adjust constant voltage and drive lamp output pin (Open drain) Imprint time select input (Internal pull-high 75K with ²Latch type²) Imprint time external control input (Internal pull-high 75K with ²Latch type²) Imprint trigger input pin (Internal pull-high 75K)* For coustomer test ²PRINTING LCD² use only, pull-low will force Lamp ²ON² and other function is OK (Internal pull-high 75K)** Drive lamp output pin (Open drain) * The X input .


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