HT6750 Date Printer Features · Operating voltage: 2.4V~5.5V · 32K crystal oscillator (Internal capacitor and resistor) · Operating current: < 3mA at 3.0V · Calendar and time adjustment · Constant voltage output (1.8V±5%) at 2.4V~5.5V · Date imprinting modes (Y/M/D, D/H/Min, Imprint off, M/D/Y, D/M/Y) operating for driving lamp (1.8V/40mA) · LCD contrast can not distort at 2.4V~5.5V operating · Mode is selected by cyclically turning · LCD display drive 1/3 duty, 1/2 bias, frame frequency · 4 film printing times is selectable or external input control (30ms/45ms/60ms/external control) is 42.67Hz · Direct resetting system · At power interrupt, data hold up > 1.0s · Lamp output time control (between VDD and VSS connect a 0.1mF capacitor) · Provides module test circuit · 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 S O R E S E M O D S E S E N O s c illa to r T E T L V F 2 V F 4 C o n tro l C ir c u it D iv . 3 2 K D iv . 6 0 D iv . 6 0 D iv . 3 2 K D iv . 2 8 , 2 9 , 3 0 o r 3 1 D iv . 2 4 V D D V S S Y e a r C o u n te r L C 1 L C 2 T P r in t/L a m p C o n tro l D M U X M U X M U X X Im - P r in t M a r k Rev. 1.00 L a m p S E G 1 S E G 1 5 1 May 13, 2002 HT6750 Pad Assignment R F 5 4 4 4 3 4 2 4 1 4 0 3 9 3 8 3 7 3 6 R F 4 4 5 R F 6 T R 1 T R 2 4 6 T R 3 T R 4 X 4 7 T T E S T 2 4 8 2 D L A M P V S S 4 9 1 V S S 3 S E G 1 4 3 5 C O M 1 R F 3 R F 2 R F 1 3 4 V F 2 S E G 2 5 3 3 L C 1 S E G 3 6 3 2 L C 2 S E G 4 7 3 1 V F 4 S E G 5 8 3 0 V D D 2 9 V D D (0 , 0 ) 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4 S E G O N 1 4 S E T 1 3 S E L S E G 1 0 M O D E 1 2 C O M 2 S E G 9 C O M 3 1 1 S E G 1 5 S E G 8 S E G 1 4 1 0 S E G 1 3 S E G 7 S E G 1 2 9 S E G 1 1 S E G 6 2 8 O S C I 2 7 O S C O 2 6 T E S T 1 2 5 R E S E T 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 Unit: mm Pad No. X Y Pad No. X Y 1 -1013.00 1050.62 26 1095.85 -872.23 2 -1155.00 952.47 27 1095.85 -704.23 3 -1112.45 781.27 28 1095.85 -537.23 4 -1112.45 612.27 29 1128.15 -388.93 5 -1112.45 429.37 30 1113.75 6 -1112.45 260.37 31 1094.35 -167.03 63.52 7 -1112.45 77.47 32 1094.35 241.52 8 -1112.45 -91.53 33 1094.35 431.52 9 -1112.45 -274.43 34 1094.35 589.52 10 -1112.45 -443.43 35 1124.55 798.97 11 -1112.45 -626.33 36 1124.55 903.97 12 -1112.45 -795.33 37 1124.55 1008.97 13 -1112.45 -978.23 38 1019.55 1008.97 14 -820.15 -1019.43 39 914.55 1008.97 15 -674.15 -1019.43 40 809.55 1008.97 16 -526.15 -1019.43 41 704.55 1008.97 Rev. 1.00 2 May 13, 2002 HT6750 Pad No. X Y Pad No. X Y 17 -380.15 -1019.43 42 599.55 1008.97 18 -232.15 -1019.43 43 494.55 1008.97 19 -1019.43 44 389.55 1008.97 20 -86.15 61.85 -1019.43 45 221.85 1016.97 21 216.85 -1018.93 46 74.45 1016.97 22 371.85 -1018.93 47 -71.25 1016.97 23 526.85 -1018.93 48 -226.25 1016.97 24 681.85 -1018.93 49 -487.89 1001.22 25 1095.85 -1039.23 Pad Description Pad No. Pad Name I/O Internal Connection Description 1, 2 VSS ¾ ¾ Negative power supply, ground 3, 19, 20 COM1 COM3, COM2 O CMOS Output for LCD panel common 4~18 SEG1~SEG15 O CMOS LCD segment output driver 21 MODE I CMOS with Pull-high Mode select input pin (Internal pull-high 75K) 22 SEL I CMOS with Pull-high Correction digit shift switch (Internal pull-high 75K) 23 SET I CMOS with Pull-high Correction digit data (Internal pull-high 75K) 24 SEGON I CMOS with Pull-high Est pin, if pull-low will force all segment ²ON² 25 RESET I CMOS with Pull-low External Reset input (Internal pull-low, 50K) 26 TEST1 I CMOS with Pull-low Test pin (not for customer) 27 OSCO O CMOS Crystal oscillator output pin 28 OSCI I CMOS Crystal oscillator input pin 29, 30 VDD ¾ ¾ 31 VF4 O CMOS Double reference voltage 32, 33 LC2, LC1 I CMOS Connected to 0.1mF capacitor 34 VF2 O CMOS Reference voltage 35~40 RF1~RF6 I ¾ Adjust regulator output voltage, TRIM PIN 41~44 TR1~TR4 I ¾ Adjust constant voltage and drive lamp output pin (Open drain) 45 T I CMOS with Pull-high Imprint time select input (Internal pull-high 75K with ²Latch type²) 46 D I CMOS with Pull-high Imprint time external control input (Internal pull-high 75K with ²Latch type²) 47 X I CMOS with Pull-high Imprint trigger input pin (Internal pull-high 75K) 48 TEST2 I CMOS with Pull-high For coustomer test ²PRINTING LCD² use only, pull-low will force Lamp ²ON² and other function is OK (Internal pull-high 75K) 49 LAMP O CMOS Rev. 1.00 Positive power supply Drive lamp output pin (Open drain) 3 May 13, 2002 HT6750 Absolute Maximum Ratings Supply Voltage .......................................................5.5V Storage Temperature ............................ -20°C to 60°C Input Voltage ......................................................... 5.5V Operating Temperature...............................0°C to 50°C Static Electricity (OFF Power)...................................................................................200pF, ±200V, 10 times to each pin 1 M W 2 0 0 V -2 0 0 V 2 0 0 p F D U T ESD test Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. Electrical Characteristics Symbol VDD Parameter Operating Voltage Ta=25±3°C, RH£65%, VSS=0V Test Conditions Conditions VDD ¾ Within 2 sec after power on (Speed up oscillator when at power on reset) Min. Typ. Max. Unit 2.4 3 5.5 V 2.4 ¾ ¾ V ¾ ¾ 1.8 V ¾ 2 3 mA 1.71 1.8 1.89 V ¾ ¾ 9 mA Vstr Oscillation Start Voltage 3V Vstop Oscillation Stop Voltage 3V Iopr1 Power Consumption (1) 3V Non-printing Ta£+20°C VL Lamp Drop Voltage (Reference VDD) 3V Constant voltage reference VDD, at VDD=2.4V~5.5V (Load is lamp 1.8V/40mA) Iopr2 Power Consumption (2) 3V Non-printing Ta£+50°C, RH=80% DT0/T Time Accuracy 3V Ta=+20°C -90 0 90 sec/ Month DT1/T Time Accuracy Deviation (1) 3V Ta=-10°C, Deviation against Ta=+20°C -170 -112 -70 sec/ Month DT2/T Time Accuracy Deviation (2) 3V Ta=+35°C, Deviation against Ta=+20°C -25 -8 0 sec/ Month DT3/T Time Accuracy Deviation (3) 3V Ta=+35°C, Deviation against Ta=+20°C -95 -55 -10 sec/ Month Thold Data Hold Time 3V At power interrupt (0.1mF at 3V) 1 ¾ ¾ s I key-on ON Recognition Current 3V When VSS=0V, X pin (VSS+0.5V), Other pins 30 10 ¾ ¾ ¾ ¾ mA mA R key-off OFF Recognition Resistance 3V X pin, Other pins 3 10 ¾ ¾ ¾ ¾ MW MW VIL Threshold Voltage 3V X Pin ON function With MODE, SEL, SET ON VSS ¾ VSS +0.5V V VIH Threshold Voltage 3V With X pin OFF MODE, SEL, SET OFF function VDD -0.5V ¾ VDD V Rev. 1.00 4 May 13, 2002 HT6750 Functional Description · 6-digit timer in 5 modes : Mode selection for 3 key ap- OFF recognition: when the ON key is pressed longer than TOFF , OFF is recognized; the next input has to wait. plications · Date from 1-1-²98 to 31-12-²49 (2049) automatic up- dating, including leap years. 31.25ms£TOFF£62.5ms, · Matrix address LCD interface in 1/3 duty, 1/2 bias, · If at least one key-ON time pulse is detected during frame frequency is 43Hz. the ²TOFF² period, the time before the key-ON pulse is regarded as the key-ON time. The lamp light-up time is controlled depending on the levels of D and T pins. · Printing enable is ²Go low² trigger in X input. VXÜ1/2 VDD, Debounce in printing trigger: 1ms£TDEBOUNCE£2ms. · After printing, ²¾² will blink 3 times at 1Hz rate. · Print means lamp output ²LOW² to light lamp. Lamp output sink current is 40mA Min. (Constant current source ), typical 45mA (VDD=2.4V~5.5V). · Printing time : 30ms, 45ms, 60ms or programmable (determined by the control CPU of the camera), selected by D or T and Topt inputs. · Built-in crystal (32768Hz) oscillator circuit (capacitor and resistor). M D D A s ia n C a le n d a r M M D H : M D a y , H o u r , M in u te D 'Y A m e r ic a n C a le n d a r M M Lamp signal output time H H 60ms H L 30ms L H Depend on X input pulse width L L 45ms not be reset when in ±200V and 200pF one-shot test. (add external resistor 10kW series with the pad; it¢s better if it works well without the resistor) At “ OFF mode, no data can be set. The X input is rejected in some condition, such as: data setting is inhibited in any case and printing ²¾² mark OFF. M T · “ X pin must be carefully protected, the system can- · At ²OFF² mode ( - - - - - - ), printing (Lamp on) and 'Y D · OFF mode O F F · Selection and Setting mode Power on reset and after crystal is stable (max. 2 sec) Regulator output voltage accuracy is 2V±3.0% (after TRIM) Display in Day-Hour-Minute mode, in 24-hour system (0~23) 'Y E u r o p e a n C a le n d a r · Default value at power on is ² ¢98 1 1² (ASIAN DATE ). Operation flowchart · Date and time cannot be set with printing ²¾² mark ON. · LCD segment test pin is provided, a ²SON² is pull-low M '9 8 which will force all segments ON. This test pin is normally pull-high through an on chip 1kW resistor. 1 1 A s ia n C a le n d a r · ²:² mark is still at time mode, at time setting, ²digit² se- M lected by SEL pin will blink at 1Hz and 1/2 duty rate. · At setting mode (SET), printing ²¾² mark is OFF and 1 1 '9 8 A m e r ic a n C a le n d a r printing is inhibited. 1 0 : 0 0 D a y , H o u r , M in u te 1 1 M '9 8 E u r o p e a n C a le n d a r O F F '9 8 M 1 1 A s ia n C a le n d a r · The selected digit (blinking) count up by one at short intervals (1.0sec£TSET£1.25sec), when the ON key is pressed for less than 1.0sec; if the SET key is pressed longer than 1.25sec, the digit will count up rapidly at 8Hz rate. · Printing is disabled during data and time setting. Mode selection sequence and initial value: (²MODE² key) In digit setting, press the ²SET² key · The digit selected will blink at a 1hz rate. · The blinking digit (selected digit) will count up by itself. · If ²SET² key is pressed ³1sec, the digit will count up T O N T rapidly at an 8Hz rate, otherwise count up by 1 every time it¢s pressed (£1sec). O F F t h e co l o n ( “ : ) i s b l i n ki n g i n t h e Day-Hour-Minute mode, pressing the SET key will reset the seconds to 00. · When Debounce time of MODE, SEL, SET key is: ON recognition: when the ON key is pressed longer than TON, ON is recognized. 31.25ms£TON£62.5ms, Rev. 1.00 5 May 13, 2002 HT6750 · When digit is set, the MODE key can interrupt the set- · At calendar mode, no matter what style calendar is ting mode and change to the next mode. displayed. The sequence of selected digit is always ²Year®Month®Day®Normal² state. The selected digit will blink at a 2Hz rate. Real time clock must count at any time even in change mode or adjusting mode. IN 3-key application, connect SWK to VSS and SEL. Press the switch MODE to change the mode as shown on the chart below, press SEL to select resetting data, press SET key to adjust the selected data. To select digit, press selection key (²SEL² key), ²¾² mark is OFF during selection. · At time mode, Day is not selected. The sequence of the selected digit is ²Hour®Minute®Normal² state. T o in c r e a s e , p r e s s th e S E T k e y M 1 2 '9 9 S E L 3 0 '9 9 M 1 2 3 0 1 9 : 3 6 S E L 3 0 '9 9 M 1 2 3 0 1 9 : 3 6 S E L 3 0 '9 9 M 1 2 3 0 S E L 3 0 1 9 : 3 6 S E L M O D E M 1 9 : 3 6 3 0 S E L S E L S E L M O D E If p r e s s S E T k e y w ill r e s e t s e c o n d to z e r o . M O D E M 1 2 3 0 '9 9 M 1 2 '9 9 S E L M 1 2 3 0 '9 9 3 0 M 1 2 '9 9 M S E L 1 2 3 0 '9 9 3 0 M 1 2 '9 9 S E L M 1 2 3 0 '9 9 S E L 3 0 M 1 2 '9 9 S E L M O D E 3 0 S E L S E L S E L M O D E LCD segment format M 1 C 1 M 2 T C 2 A F 1 3 2 4 E 5 S E G C O M 1 Rev. 1.00 2 3 1 4 5 6 7 8 9 1 0 1 1 C 6 P P in N o . B G D 1 2 1 3 1 4 1 5 1 6 1 5 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 A 1 D 1 B C 1 2 F 2 A 3 A M 2 4 F 4 A C 2 5 A T 6 A 1 E 1 C 2 E 2 D 2 C 3 E 3 C 4 D 4 C P 5 D 5 E 5 B 5 C 6 E 6 D 6 C 1 F 1 G M 1 2 G 2 B 3 G 3 B 4 E 4 G 4 B 5 F 5 G 6 F 6 G 6 B 3 D 6 1 7 1 8 C O M 3 C O M 3 May 13, 2002 HT6750 Application Circuits D is p la y P r in tin g V 1 .8 V C O M 1 ~ C O M 3 , S E G 1 ~ S E G 1 5 1 2 p F V D D L a m p O S C I 0 .1 m F D D T E S T 2 T V F 4 D V S S 0 .1 m F V R e s e t O S C O 0 .1 m F D D X V F 2 L C 1 M O D E L C 2 S E L E x t. tr ig g e r S E T 0 .1 m F Rev. 1.00 7 May 13, 2002 HT6750 Holtek Semiconductor Inc. (Headquarters) No.3, Creation Rd. II, Science-based Industrial Park, Hsinchu, Taiwan Tel: 886-3-563-1999 Fax: 886-3-563-1189 http://www.holtek.com.tw Holtek Semiconductor Inc. (Sales Office) 11F, No.576, Sec.7 Chung Hsiao E. Rd., Taipei, Taiwan Tel: 886-2-2782-9635 Fax: 886-2-2782-9636 Fax: 886-2-2782-7128 (International sales hotline) Holtek Semiconductor (Shanghai) Inc. 7th Floor, Building 2, No.889, Yi Shan Rd., Shanghai, China Tel: 021-6485-5560 Fax: 021-6485-0313 http://www.holtek.com.cn Holtek Semiconductor (Hong Kong) Ltd. RM.711, Tower 2, Cheung Sha Wan Plaza, 833 Cheung Sha Wan Rd., Kowloon, Hong Kong Tel: 852-2-745-8288 Fax: 852-2-742-8657 Holmate Semiconductor, Inc. 48531 Warm Springs Boulevard, Suite 413, Fremont, CA 94539 Tel: 510-252-9880 Fax: 510-252-9885 http://www.holmate.com Copyright Ó 2002 by HOLTEK SEMICONDUCTOR INC. The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable without further modification, nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw. Rev. 1.00 8 May 13, 2002