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ht600/ht680/HT6207 3 18 series of encoders selection table function address no. address/ data no. data no. dummy code no. oscillator trigger package part no. ht600 9 5 0 4 rc oscillator te 20dip/sop ht680 8 4 0 6 rc oscillator te 18dip/sop HT6207 10 0 4 4 rc oscillator d12~d15 20dip/sop note: address/data represents pins that can be either address or data according to the application requirement. rev. 1.10 1 january 24, 2003 general description the 3 18 encoders are a series of cmos lsis for remote control system applications. they are capable of encod - ing 18 bits of information which consists of n address bits and 18 n data bits. each address/data input is ex- ternally trinary programmable if bonded out. it is other- wise set floating internally. various packages of the 3 18 encoders offer flexible combinations of programmable address/data to meet various application needs. the programmable address/data is transmitted together with the header bits via an rf or an infrared transmis - sion medium upon receipt of a trigger signal. the capa- bility to select a te trigger type or a data trigger type further enhances the application flexibility of the 3 18 se- ries of encoders. features operating voltage: 2.4v~12v low power and high noise immunity cmos technology low standby current three words transmission built-in oscillator needs only 5% resistor easy interface with an rf or infrared transmission media minimal external components pair with holtek s3 18 series of decoders ht600/HT6207: 20-pin dip/sop package ht680: 18-pin dip/sop package applications burglar alarm system smoke and fire alarm system garage door controllers car door controllers car alarm system security system cordless telephones other remote control systems
block diagram te trigger ht600/ht680 data trigger HT6207 note: the address/data pins are available in various combinations. pin assignment ht600/ht680/HT6207 rev. 1.10 2 january 24, 2003

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pin description pin name i/o internal connection description a0~a11 i transmission gate input pins for address a0~a11 setting they can be externally set to vdd, vss, or left open. ad10~ad17 i transmission gate input pins for address/data (ad10~ad17) setting they can be externally set to vdd, vss, or left open. d12~d15 i cmos in pull-low input pins for data (d12~d15) setting and transmission enable (active high) they an be externally set to vdd or left open (see note). dout o cmos out encoder data serial transmission output led o nmos out led transmission enable indicator te i cmos in pull-low transmission enable, active high (see note). osc1 i oscillator oscillator input pin osc2 o oscillator oscillator output pin vss negative power supply, ground vdd positive power supply note: d12~d15 are data input and transmission enable pins of the HT6207. te is the transmission enable pin of the ht600/ht680. approximate internal connections absolute maximum ratings supply voltage ............................v ss 0.3v to v ss +13v storage temperature ............................ 50 cto125 c input voltage ................................v ss 0.3 to v dd +0.3v operating temperature........................... 20 cto75 c note: these are stress ratings only. stresses exceeding the range specified under absolute maximum ratings 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 reliabil - ity. ht600/ht680/HT6207 rev. 1.10 3 january 24, 2003 * + , - - + % ,
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electrical characteristics ta=25 c symbol parameter test conditions min. typ. max. unit v dd conditions v dd operating voltage 2.4 12 v i stb standby current 3v oscillator stops 0.1 1 a 12v 24 a i dd operating current 5v no load, f osc =100khz 250 500 a 12v 1200 2400 a i led led sink current 5v v led =0.5v 1.5 3 ma i dout output drive current 5v v oh =0.9v dd (source) 0.6 1.2 ma 5v v ol =0.1v dd (sink) 0.6 1.2 ma v ih h input voltage 0.8v dd v dd v v il l input voltage 0 0.2v dd v f osc oscillator frequency 10v r osc =330k 100 khz r te te pull-low resistance 5v v te =5v 1.5 3 m r data d12~d17 pull-low resistance 5v v data =5v 1.5 3 m ht600/ht680/HT6207 rev. 1.10 4 january 24, 2003
functional description operation the 3 18 series of encoders begins a three-word transmission cycle upon receipt of a transmission enable (te for the ht600/ht680 or d12~d15 for the HT6207, active high). this cycle will repeat itself as long as the transmission enable (te or d12~d15) is held high. once the transmission enable falls low, the encoder output completes its final cycle and then stops as shown below. information word an information word consists of four periods as shown: address/data waveform each programmable address/data pin can be externally set to one of the following three logic states: the open state data input is interpreted as logic low by the decoders since the decoder output only have two states. address/data programming (preset) the status of each address/data pin can be individually preset to logic high , low ,or floating . if a transmission en - able signal is applied, the encoder scans and transmits the status of the 18 bits of address/data serially in the order a0 to ad17 for the ht600/ht680 and a0 to d15 for the HT6207. there are some packaging limitations. for example t he 18-pin dip ht680, offers four external data bits and eight ex - ternal address bits. the remaining unpackaged bits or dummy codes are treated as floating for a0~ad17 or as pull-low for d12~d15. during an information transmission these bits are still located in their original position. but if the trigger signal is not applied, the chip only consumes a standby current which is less than 1 a. ht600/ht680/HT6207 rev. 1.10 5 january 24, 2003
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the address pins are usually preset to transmit data codes with particular security codes by the dip switches or pcb wiring, while the data is selected using push buttons or electronic switches. the following figure shows an application using the ht680: the transmitted information is as shown: pilot & sync. a0 0 a1 z a2 0 a3 1 a4 z a5 z a6 1 a7 z a8 0 a9 0 ad10 z ad11 z ad12 z ad13 z ad14 z ad15 1 ad16 z ad17 z z: floating address/data sequence the following provides a table of address/data sequence for various models of the 3 18 series encoders. part no. address/data bits 0~3 4 5 6~9 10 11 12 13 14 15 16 17 ht600 a0~a3 a4 a6~a9 ad11 ad12 ad13 ad14 ad15 ht680 a0~a3 a6~a9 ad11 ad12 ad14 ad15 HT6207 a0~a3 a4 a6~a9 a11 d12 d13 d14 d15 note: is a dummy code which is left open and not bonded out. is a dummy code which is set low and not bonded out. transmission enable for the te trigger type of encoders, transmission is enabled by applying a high signal to the te pin. but for the data trigger type of encoders, it is enabled by applying a high signal to one of the data pins d12~d15. ht600/ht680/HT6207 rev. 1.10 6 january 24, 2003 ' ! % ) ( "
flowchart note: d12~d15 are transmission enables of the HT6207. te is the transmission enable of the ht600/ht680. oscillator frequency vs. supply voltage the recommended oscillator frequency is f oscd (decoder) f osce (encoder) ht600/ht680/HT6207 rev. 1.10 7 january 24, 2003 5
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package information 18-pin dip (300mil) outline dimensions symbol dimensions in mil min. nom. max. a 895 915 b 240 260 c 125 135 d 125 145 e16 20 f50 70 g 100 h 295 315 i 335 375
0 15 ht600/ht680/HT6207 rev. 1.10 9 january 24, 2003 # % ? = -
20-pin dip (300mil) outline dimensions symbol dimensions in mil min. nom. max. a 1020 1045 b 240 260 c 125 135 d 125 145 e16 20 f50 70 g 100 h 295 315 i 335 375
0 15 ht600/ht680/HT6207 rev. 1.10 10 january 24, 2003 # % ? = -
18-pin sop (300mil) outline dimensions symbol dimensions in mil min. nom. max. a 394 419 b 290 300 c14 20 c 447 460 d92 104 e 50 f4 g32 38 h4 12
0 10 ht600/ht680/HT6207 rev. 1.10 11 january 24, 2003 # % ? = @
20-pin sop (300mil) outline dimensions symbol dimensions in mil min. nom. max. a 394 419 b 290 300 c14 20 c 490 510 d92 104 e 50 f4 g32 38 h4 12
0 10 ht600/ht680/HT6207 rev. 1.10 12 january 24, 2003 # % ? @ =
product tape and reel specifications reel dimensions sop 18w symbol description dimensions in mm a reel outer diameter 330 1.0 b reel inner diameter 62 1.5 c spindle hole diameter 13.0+0.5 0.2 d key slit width 2.0 0.5 t1 space between flange 24.8+0.3 0.2 t2 reel thickness 30.2 0.2 sop 20w symbol description dimensions in mm a reel outer diameter 330 1.0 b reel inner diameter 62 1.5 c spindle hole diameter 13.0+0.5 0.2 d key slit width 2.0 0.5 t1 space between flange 24.8+0.3 0.2 t2 reel thickness 30.2 0.2 ht600/ht680/HT6207 rev. 1.10 13 january 24, 2003 #
carrier tape dimensions sop 18w symbol description dimensions in mm w carrier tape width 24.0+0.3 0.1 p cavity pitch 16.0 0.1 e perforation position 1.75 0.1 f cavity to perforation (width direction) 11.5 0.1 d perforation diameter 1.5 0.1 d1 cavity hole diameter 1.5+0.25 p0 perforation pitch 4.0 0.1 p1 cavity to perforation (length direction) 2.0 0.1 a0 cavity length 10.9 0.1 b0 cavity width 12.0 0.1 k0 cavity depth 2.8 0.1 t carrier tape thickness 0.3 0.05 c cover tape width 21.3 sop 20w symbol description dimensions in mm w carrier tape width 24.0+0.3 0.1 p cavity pitch 12.0 0.1 e perforation position 1.75 0.1 f cavity to perforation (width direction) 11.5 0.1 d perforation diameter 1.5+0.1 d1 cavity hole diameter 1.5+0.25 p0 perforation pitch 4.0 0.1 p1 cavity to perforation (length direction) 2.0 0.1 a0 cavity length 10.8 0.1 b0 cavity width 13.3 0.1 k0 cavity depth 3.2 0.1 t carrier tape thickness 0.3 0.05 c cover tape width 21.3 ht600/ht680/HT6207 rev. 1.10 14 january 24, 2003 . a . . % ? b #
ht600/ht680/HT6207 rev. 1.10 15 january 24, 2003 copyright 2003 by holtek semiconductor inc. the information appearing in this data sheet is believed to be accurate at the time of publication. however, holtek as - sumes 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 s products are not authorized for use as critical components in life support devices or systems. 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. holtek semiconductor inc. (headquarters) no.3, creation rd. ii, science park, hsinchu, taiwan tel: 886-3-563-1999 fax: 886-3-563-1189 http://www.holtek.com.tw holtek semiconductor inc. (taipei sales office) 4f-2, no. 3-2, yuanqu st., nankang software park, taipei 115, taiwan tel: 886-2-2655-7070 fax: 886-2-2655-7373 fax: 886-2-2655-7383 (international sales hotline) holtek semiconductor inc. (shanghai sales office) 7th floor, building 2, no.889, yi shan rd., shanghai, china 200233 tel: 021-6485-5560 fax: 021-6485-0313 http://www.holtek.com.cn holtek semiconductor inc. (shenzhen sales office) 5/f, unit a, productivity building, cross of science m 3rd road and gaoxin m 2nd road, science park, nanshan district, shenzhen, china 518057 tel: 0755-8616-9908, 8616-9308 fax: 0755-8616-9533 holtek semiconductor inc. (beijing sales office) suite 1721, jinyu tower, a129 west xuan wu men street, xicheng district, beijing, china 100031 tel: 010-6641-0030, 6641-7751, 6641-7752 fax: 010-6641-0125 holtek semiconductor inc. (chengdu sales office) 709, building 3, champagne plaza, no.97 dongda street, chengdu, sichuan, china 610016 tel: 028-6653-6590 fax: 028-6653-6591 holmate semiconductor, inc. (north america sales office) 46729 fremont blvd., fremont, ca 94538 tel: 510-252-9880 fax: 510-252-9885 http://www.holmate.com

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