HT604L/HT614/HT692 318 Series of Decoders Features · · · · · · · · Operating voltage: 2.4V~12V Low power and high noise immunity CMOS technology Low standby current Capable of decoding 18 bits of information Pairs with Holtek¢s 318 series of encoders 9~10 address pins 2~8 data pins Trinary address setting · · · · · · Two times of receiving check Built-in oscillator needs only a 5% resistor Valid transmission indicator Easy interface with an RF or an infrared transmission medium Minimal external components HT604L/HT614: 20-pin DIP/SOP package HT692: 18-pin DIP 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 General Description The 318 decoders are a series of CMOS LSIs for remote control system applications. They are paired with the 318 series of encoders. For proper operation, a pair of encoder/decoder pair with the same number of address and data format should be selected (refer to the encoder/decoder cross reference tables). encountered, the input data codes are decoded and then transferred to the output pins. The VT pin also goes high to indicate a valid transmission. The 318 decoders are capable of decoding 18 bits of information that consists of N bits of address and 18-N bits of data. To meet various applications they are arranged to provide a number of data pins whose range is from 0 to 8 and an address pin whose range is from 8 to 18. In addition, the 3 1 8 decoders provide various combinations of address/data number in different packages. The 318 series of decoders receive serial address and data from that series of encoders that are transmitted by a carrier using an RF or an IR transmission medium. It then compares the serial input data twice continuously with its local address. If no errors or unmatched codes are 1 September 8, 2000 HT604L/HT614/HT692 Selection Table Function Address Data VT No. Part No. No. Type Oscillator Trigger Package HT604L 10 4 L Ö RC oscillator DIN active ²Hi² 20 DIP/SOP HT614 10 4 M Ö RC oscillator DIN active ²Hi² 20 DIP/SOP HT692 10 2 M Ö RC oscillator DIN active ²Hi² 18 DIP Note: Data type: M stands for momentary type data output. L stands for latch type data output. VT can be used as a momentary data output. Block Diagram O S C 2 O S C 1 O s c illa to r D IN B u ffe r D iv id e r D a ta S h ift R e g is te r L a tc h C ir c u it C o m p a ra to r C o n tr o l L o g ic D a ta D a ta D e te c to r S y n c . D e te c to r C o m p a ra to r T r a n s m is s io n G a te C ir c u it A d d re s s B u ffe r V D D V T V S S Note: The address/data pins are available in various combinations (refer to the address/data table). 2 September 8, 2000 HT604L/HT614/HT692 Pin Assignment Latch series Momentary series 1 0 -A d d re s s 2 -D a ta 1 0 -A d d re s s 4 -D a ta 1 0 -A d d re s s 4 -D a ta A 1 1 1 2 0 V D D A 1 1 1 2 0 V D D D 1 2 2 1 9 A 9 D 1 2 2 1 9 A 9 A 1 1 1 1 8 V D D 3 1 8 A 8 A 1 2 2 1 7 A 9 3 1 6 A 8 4 1 5 A 7 D 1 3 3 1 8 A 8 D 1 3 D 1 4 4 1 7 A 7 D 1 4 4 1 7 A 7 D 1 5 V T 5 1 6 A 6 D 1 5 5 1 6 A 6 D 1 4 D 1 5 6 1 5 A 4 V T 6 1 5 A 4 V T 5 1 4 A 6 D IN 7 1 4 A 3 D IN 7 1 4 A 3 D IN 6 1 3 A 3 O S C 2 O S C 1 8 1 3 A 2 8 1 3 A 2 O S C 2 7 1 2 A 2 9 1 2 A 1 O S C 2 O S C 1 9 1 2 A 1 O S C 1 8 1 1 A 1 A 0 V S S 1 0 1 1 A 0 V S S 9 1 0 A 0 V S S 1 0 1 1 H T 6 1 4 2 0 D IP /S O P H T 6 0 4 L 2 0 D IP /S O P H T 6 9 2 1 8 D IP Pin Description Pin Name I/O Internal Connection Description TRANSMISSION Input pins for address A0~A12 setting GATE They can be externally set to VDD, VSS or left open. A0~A12 I D10~D17 O CMOS OUT DIN I CMOS IN VT O CMOS OUT OSC1 I OSCILLATOR Oscillator input pin OSC2 O OSCILLATOR Oscillator output pin VSS ¾ ¾ Negative power supply, ground VDD ¾ ¾ Positive power supply Output data pins Serial data input pin Valid transmission, active high Approximate internal connections T R A N S M IS S IO N G A T E C M O S O U T C M O S IN O S C IL L A T O R E N O S C 1 3 O S C 2 September 8, 2000 HT604L/HT614/HT692 Absolute Maximum Ratings Supply Voltage...............................-0.3V to 13V Storage Temperature.................-50°C to 125°C Input Voltage .................VSS-0.3V to VDD+0.3V Operating Temperature ..............-20°C to 75°C 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 Parameter VDD Operating Voltage ISTB Standby Current IDD Operating Current IO IVT Data Output Source Current (D10~D17) Data Output Sink Current (D10~D17) VT Output Source Current VT Output Sink Current Ta=25°C Test Conditions Min. Typ. 3 ¾ 12 V ¾ 0.1 1 mA ¾ 2 4 mA ¾ 0.2 1 mA VOH=4.5V -0.5 -1 ¾ mA VOL=0.5V 0.25 1 ¾ mA VOH=4.5V -2 -4 ¾ mA VOL=0.5V 0.25 1 ¾ mA VDD Conditions ¾ ¾ 5V 12V 5V Oscillator stops No load fOSC=100kHz Max. Unit 5V 5V VIH ²H² Input Voltage 5V ¾ 3.5 ¾ 5 V VIL ²L² Input Voltage 5V ¾ 0 ¾ 1 V fOSC Oscillator Frequency 10V ROSC=330kW ¾ 100 ¾ kHz 4 September 8, 2000 HT604L/HT614/HT692 Functional Description Flowchart Operation 18 The 3 series of decoders provide various combinations of address and data pins in different packages. It is paired with the 318 series of encoders. The decoders receive data transmitted by the encoders and interpret the first N bits of the code period as address and the last 18-N bits as data (where N is the address code number). A signal on the DIN pin then activates the oscillator which in turns decodes the incoming address and data. The decoders will check the received address twice continuously. If all the received address codes match the contents of the decoder¢s local address, the 18-N bits of data are decoded to activate the output pins, and the VT pin is set high to indicate a valid transmission. That will last until the address code is incorrect or no signal has been received. The output of the VT pin is high only when the transmission is valid. Otherwise it is always low. P o w e r o n S ta n d b y m o d e N o D is a b le V T & ig n o r e th e r e s t o f th is w o r d C o d e in ? Y e s A d d r e s s b its m a tc h e d ? N o Y e s S to re d a ta M a tc h p r e v io u s s to r e d d a ta ? N o Y e s N o Output type There are two types of output to select from: 2 tim e s o f c h e c k in g c o m p le te d ? Y e s · Momentary type L a tc h /M o m e n ta ry d a ta to o u tp u t & a c tiv a te V T The data outputs follow the encoder during a valid transmission and then reset. · Latch type N o The data outputs follow the encoder during a valid transmission, and are then latched in this state until the next valid transmission occurs. A d d re s s o r d a ta e rro r ? Y e s Note: The oscillator is disabled in the standby state and activated as long as a logic ²high² signal is applied to the DIN pin. i.e., the DIN should be kept ²low² if there is no signal input. 5 September 8, 2000 HT604L/HT614/HT692 Decoder timing E n c o d e r T r a n s m is s io n E n a b le < 1 w o rd E n c o d e r D a ta O u t T r a n s m itte d C o n tin u o u s ly 3 w o rd s 2 2 w o rd s D e c o d e r V T c h e c k 1 4 3 w o rd s 2 c lo c k s 1 4 c lo c k s c h e c k M o m e n ta ry D a ta O u t 1 /2 c lo c k p e r io d 1 /2 c lo c k p e r io d L a tc h e d D a ta O u t Encoder/Decoder selection tables · Latch type of data output Part No. HT604L Data Address VT Pins Pins 4 10 Ö Package Pair Encoder Encoder Decoder DIP SOP SKDIP DIP HT600 20 20 HT6207 20 ¾ ¾ 20 SOP SKDIP 20 ¾ · Momentary type of data output Package Data Pins Address Pins VT HT692 2 10 Ö HT614 4 10 Ö Part No. Pair Encoder Encoder Decoder DIP SOP SKDIP DIP HT680 18 ¾ HT600 20 20 HT6207 20 ¾ 6 SOP SKDIP ¾ 18 ¾ ¾ ¾ 20 20 ¾ September 8, 2000 HT604L/HT614/HT692 Address/Data sequence The following provides a table of address/data sequence for various models of the 318 series decoders. A correct device should be selected according to the sindividual address and data requirements. Part No. Address/Data Bits 0~3 4 5 6~9 10 11 12 13 14 15 16 17 HT604L A0~A3 A4 ¾ A6~A9 ¾ A11 D12 D13 D14 D15 ¾ ¾ HT614 A0~A3 A4 ¾ A6~A9 ¾ A11 D12 D13 D14 D15 ¾ ¾ HT692 A0~A3 ¾ ¾ A6~A9 ¾ A11 A12 ¾ D14 D15 ¾ ¾ Note: ²¾² is a dummy code which is left ²open² and not bonded out. Oscillator frequency vs supply voltage fo s c (S c a le ) R o s c (9 ) 3 .0 0 2 .7 5 1 2 0 k 2 .5 0 2 .2 5 2 .0 0 1 5 0 k 1 .7 5 1 8 0 k 1 .5 0 2 2 0 k 1 .2 5 2 7 0 k (1 0 0 k H z ) 1 .0 0 3 3 0 k 3 9 0 k 4 7 0 k 5 6 0 k 6 8 0 k 8 2 0 k 1 M 1 .5 M 2 M 0 .7 5 0 .5 0 0 .2 5 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 2 .5 V D D (V D C ) The recommended oscillator frequency is fOSCD (decoder) @ fOSCE (encoder) 7 September 8, 2000 HT604L/HT614/HT692 Application Circuits R e c e iv e r C ir c u it R e c e iv e r C ir c u it V 1 A 1 1 2 A 1 2 A 9 D 1 4 A 8 D 1 5 A 7 V T A 6 D IN A 3 O S C 2 A 2 O S C 1 A 1 V S S A 0 3 4 5 6 7 R o s c 9 8 V D D V D D 1 1 8 2 1 7 3 1 6 4 1 5 5 1 4 6 1 3 7 1 2 8 1 1 R o s c 1 0 9 1 0 H T 6 9 2 A 1 1 V D D D 1 2 A 9 D 1 3 A 8 D 1 4 A 7 D 1 5 A 6 V T A 4 D IN A 3 O S C 2 A 2 O S C 1 A 1 V S S A 0 D D 2 0 1 9 1 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 H T 6 1 4 /H T 6 0 4 L 8 September 8, 2000 HT604L/614/692 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 Holtek Semiconductor Inc. (Taipei 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 (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 Holtek Semiconductor (Shanghai) Ltd. 7th Floor, Building 2, No.889, Yi Shan Rd., Shanghai, China Tel: 021-6485-5560 Fax: 021-6485-0313 Holmate Technology Corp. 48531 Warm Springs Boulevard, Suite 413, Fremont, CA 94539 Tel: 510-252-9880 Fax: 510-252-9885 Copyright ã 2000 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. 9 September 8, 2000