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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 8~18 address pins 0~8 data pins * * * * * * Trinary address setting Two times of receiving check Built-in oscillator needs only a 5% resistor Valid transmission indictor Easily interface with an RF or an infrared transmission medium Minimal external components 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). The 318 series of decoders receives 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 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 318 decoders provide various combinations of address/data number in different packages. Selection Table Function Address No. Item HT602L HT604L HT605L HT611 12 10 9 14 Data No. 2 4 5 0 VT L L L Oscillator Trigger Package Type RC oscillator DIN active "Hi" 20 DIP/20 SOP RC oscillator DIN active "Hi" 20 DIP/20 SOP RC oscillator DIN active "Hi" 20 DIP/20 SOP RC oscillator DIN active "Hi" 20 DIP/20 SOP -- 1 2nd Oct '97 318 Series of Decoders Function Address No. Item HT612 HT614 HT615 HT644L HT646L HT648L HT651 HT654 HT656 HT658 HT682L HT683L HT684L HT691 HT692 HT693 HT694 12 10 9 14 12 10 18 14 12 10 10 9 8 12 10 9 8 Data No. 2 4 5 4 6 8 0 4 6 8 2 3 4 0 2 3 4 VT Oscillator Trigger Package Type M M M L L L -- M M M L L L -- M M M RC oscillator DIN active "Hi" 20 DIP/20 SOP RC oscillator DIN active "Hi" 20 DIP/20 SOP RC oscillator DIN active "Hi" 20 DIP/20 SOP RC oscillator DIN active "Hi" 24 SOP/24 SDIP RC oscillator DIN active "Hi" 24 SOP/24 SDIP RC oscillator DIN active "Hi" 24 SOP/24 SDIP RC oscillator DIN active "Hi" 24 SOP/24 SDIP RC oscillator DIN active "Hi" 24 SOP/24 SDIP RC oscillator DIN active "Hi" 24 SOP/24 SDIP RC oscillator DIN active "Hi" 24 SOP/24 SDIP RC oscillator DIN active "Hi" 18 DIP RC oscillator DIN active "Hi" 18 DIP RC oscillator DIN active "Hi" 18 DIP RC oscillator DIN active "Hi" 18 DIP RC oscillator DIN active "Hi" 18 DIP RC oscillator DIN active "Hi" 18 DIP RC oscillator DIN active "Hi" 18 DIP Note: Data type: M represents momentary type of data output. L represents latch type of data output. VT can be used as a momentary data output. 2 2nd Oct '97 318 Series of Decoders Block Diagram Note: The address/data pins are available in various combinations (refer to the address/data table). Pin Description Pin Name A0~A17 D10~D17 DIN VT OSC1 OSC2 VSS VDD I/O I O I O I O I I Internal Connection Description TRANSMISSION Input pins for address A0~A17 setting GATE They can be externally set to VDD, VSS, or left open. CMOS OUT CMOS IN CMOS OUT OSCILLATOR OSCILLATOR -- -- Output data pins Serial data input pin Valid transmission, active high Oscillator input pin Oscillator output pin Negative power supply (GND) Positive power supply 3 2nd Oct '97 318 Series of Decoders Approximate internal connection circuits Absolute Maximum Ratings* Supply Voltage ............................... -0.3V to 13V Input Voltage..................VSS-0.3V to VDD+0.3V Storage Temperature................. -50C to 125C Operating Temperature............... -20C to 75C *Note: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only. Functional operation of this device at these or any other conditions above those indicated in the operational sections of this specification is not implied and exposure to absolute maximum rating conditions for extened periods may affect device reliability. Electrical Characteristics Symbol VDD ISTB IDD (Ta=25C) Parameter Operating Voltage Standby Current Test Conditions VDD -- 5V 12V Min. 3 -- -- Typ. -- 0.1 2 0.2 -1 1 -4 2 -- -- 100 Max. 12 1 4 1 -- -- -- -- 5 1 -- Unit V Conditions -- Oscillator stops No load FOSC=100kHz VOH=4.5V A A mA mA mA mA mA V V kHz Operating Current Data Output Source Current (D10~D17) Data Output Sink Current (D10~D17) VT Output Source Current VT Output Sink Current "H" Input Voltage "L" Input Voltage Oscillator Frequency 5V -- -0.5 0.5 -2 1 3.5 0 -- IO 5V VOL=0.5V 5V 5V 5V 10V VOH=4.5V VOL=0.5V -- -- ROSC=330k IVT VIH VIL FOSC 4 2nd Oct '97 318 Series of Decoders Functional Description Operation Flowchart 18 The 3 series of decoders provides 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 low always. Output type There are 2 types of output to select from: * Momentary type The data outputs follow the encoder during a valid transmission and then reset. * Latch type The data outputs follow the encoder during a valid transmission, and are then latched in this state until the next valid transmission occurs. Note: The oscillator is disabled in the standby state and activated as long as a logic "high" signal is applied to the DIN pin. i.e., the DIN should be kept "low" if there is no signal input. 5 2nd Oct '97 318 Series of Decoders Decoder timing Encoder/Decoder selection tables * Latch type of data output Package Part No. Data Address VT Pins Pins 2 3 4 2 4 5 4 6 8 10 9 8 12 10 9 14 12 10 Pair Encoder DIP Encoder SOP SDIP -- -- -- -- 20 20 -- 20 24 24 -- 24 24 -- -- 24 24 20 -- -- -- -- -- 18 20 20 -- -- Decoder DIP 18 18 SOP SDIP -- -- -- 20 20 20 24 24 24 -- -- -- -- -- -- 24 24 24 HT682L HT683L HT684L HT602L HT604L HT605L HT644L HT646L HT648L HT680 HT680 HT6187 HT680 HT600 HT600 HT6207 HT600 HT640 HT640 HT6247 HT640 18 18 18 18 20 20 20 20 24 24 24 24 6 2nd Oct '97 318 Series of Decoders * Momentary type of data output Package Part No. Data Pins 0 2 3 4 0 2 4 5 0 4 6 8 Address Pins 12 10 9 8 14 12 10 9 18 14 12 10 VT Pair Encoder DIP Encoder SOP SDIP -- -- -- -- -- 20 20 20 -- 20 24 24 24 -- 24 24 -- -- 24 24 24 20 -- -- -- -- -- -- -- 18 20 20 20 -- -- -- Decoder DIP 18 18 18 SOP SDIP -- -- -- -- 20 20 20 20 24 24 24 24 -- -- -- -- -- -- -- -- 24 24 24 24 HT691 HT692 HT693 HT694 HT611 HT612 HT614 HT615 HT651 HT654 HT656 HT658 HT680 HT680 HT680 HT6187 HT680 HT600 HT600 HT600 HT6207 HT600 HT640 HT640 HT640 HT6247 HT640 18 18 18 18 18 20 20 20 20 20 24 24 24 24 24 7 2nd Oct '97 318 Series of Decoders 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 requirements of individual address and data. Part No. 0~3 HT602L HT604L HT605L HT611 HT612 HT614 HT615 HT644L HT646L HT648L HT651 HT654 HT656 HT658 HT682L HT683L HT684L HT691 HT692 HT693 HT694 A0~A3 A0~A3 A0~A3 A0~A3 A0~A3 A0~A3 A0~A3 A0~A3 A0~A3 A0~A3 A0~A3 A0~A3 A0~A3 A0~A3 A0~A3 A0~A3 A0~A3 A0~A3 A0~A3 A0~A3 A0~A3 4 A4 A4 A4 A4 A4 A4 A4 A4 A4 A4 A4 A4 A4 A4 -- -- -- -- -- -- -- 5 -- -- -- -- -- -- -- A5 A5 A5 A5 A5 A5 A5 -- -- -- -- -- -- -- 6~9 A6~A9 A6~A9 A6~A9 A6~A9 A6~A9 A6~A9 A6~A9 Address/Data Bits 10 -- -- -- -- -- -- -- 11 A11 A11 D11 A11 A11 A11 D11 A11 A11 D11 A11 A11 A11 D11 A11 A11 D11 A11 A11 A11 D11 12 A12 D12 D12 A12 A12 D12 D12 A12 D12 D12 A12 A12 D12 D12 A12 D12 D12 A12 A12 D12 D12 13 A13 D13 D13 A13 A13 D13 D13 A13 D13 D13 A13 A13 D13 D13 -- -- -- -- -- -- -- 14 D14 D14 D14 A14 D14 D14 D14 D14 D14 D14 A14 D14 D14 D14 D14 D14 D14 A14 D14 D14 D14 15 D15 D15 D15 A15 D15 D15 D15 D15 D15 D15 A15 D15 D15 D15 D15 D15 D15 A15 D15 D15 D15 16 -- -- -- -- -- -- -- D16 D16 D16 A16 D16 D16 D16 -- -- -- -- -- -- -- 17 -- -- -- -- -- -- -- D17 D17 D17 A17 D17 D17 D17 -- -- -- -- -- -- -- A6~A9 A10 A6~A9 A10 A6~A9 D10 A6~A9 A10 A6~A9 A10 A6~A9 A10 A6~A9 D10 A6~A9 A6~A9 A6~A9 A6~A9 A6~A9 A6~A9 A6~A9 -- -- -- -- -- -- -- Note: "--" is a dummy code which is left "open" and not bonded out. 8 2nd Oct '97 318 Series of Decoders Oscillator frequency vs supply voltage The recommended oscillator frequency is FOSCD (decoder) FOSCE (encoder). 9 2nd Oct '97 318 Series of Decoders Package Information Latch series 10 2nd Oct '97 318 Series of Decoders Momentary series 11 2nd Oct '97 318 Series of Decoders Momentary series 12 2nd Oct '97 318 Series of Decoders Application Circuits 13 2nd Oct '97 318 Series of Decoders Note: Typical infrared receiver: PIC-12043T/PIC-12043C (KODENSHI CORP.) or LTM9052 (LITEON CORP.) Typical RF receiver: JR-200 (JUWA CORP.) RE-99 (MING MICROSYSTEM, U.S.A.) 14 2nd Oct '97 |
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