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GTEC-0012S

GLOBALTEC ELECTRONICS LTD. GTEC-0012S. No. 9712. GlobalTec. 2. 8. Software Spec Sheet. Product Purpose Function Features. 4 bit 1 chip microcomputer. Infrared remote control encoder. 8 x11 key matrix scan. 455KHz running frequency CMOS process (Single 3V power supply)

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GTEC-0012S

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  1. GLOBALTEC ELECTRONICS LTD. GTEC-0012S No. 9712 GlobalTec.

  2. 2 8 Software Spec Sheet • Product • Purpose • Function • Features • 4 bit 1 chip microcomputer • Infrared remote control encoder • 8 x11 key matrix scan • 455KHz running frequency • CMOS process (Single 3V power supply) • Stand-by function • Released stand-by mode by key input • Built in capacitor for ceramic oscillation circuit (For KHz) • Built in a watch dog timer (WDT)

  3. 3 8 1. Output waveform 1) uPD6122 A single pulse, modulated with 37.917KHz signal at 455KHz Tc Carrier frequency fCAR = 1/Tc = fOSC/12 Duty ratio = T1/Tc = 1/3 T1 - Configuration of Flame of 8bit 1st flame Custom code Custom code Lead code Data code Data code C0 C1 C2 C3 C4 C5 C6 0 C0 C1 C2 C3 C4 C5 C6 1 D0 D1 D2 D3 D4 D5 D6 D7 D0 D1 D2 D3 D4 D5 D5 D7 Repeat flame Full code Repeat code Tf

  4. 4 8 - Lead code 9ms 4.5ms - Repeat code 0.56ms 9ms 2.25ms - Bit Description Bit ﹍0﹍ Bit ﹍1﹍ 0.56ms 0.56ms 1.125ms 2.25ms - Flame Interval of Reprat flame: Tf The transmitted waveform as long as a key is depressed Tf Tf Tf = 108ms @455KHz

  5. 8 5 2) TC9148 A single pulse, modulated with 37.917KHz signal at 455KHz Tc Carrier frequency fCAR = 1/Tc = fOSC/12 Duty ratio = T1/Tc = 1/3 T = 16Tc T1 - Configuration of Flame 1st flame Hold/Single pulse code Code bit Key input code C1 C2 C3 H S1 S2 D1 D2 D3 D4 D5 D6 - Bit Description Bit "0" Bit "1" T 3T 4T 4T - Flame Interval Single Key 20.25ms 20.25ms 33.76ms 33.76ms Continuous key Tf=162.03ms @455KHz 87.77ms

  6. 6 8 - TC9148 DATA Key No. 1~6 are multiple key. The data is combination of Keys. ex) Key No. 1+ 2 + 6 = 100100011 if you want to get TC9148 mode, you must press P key and one key among A ~ D. Then, The custom is presented by the combination of the key and M( DIODE). If you do not program the custom of TC9148, any data will not be presented.

  7. = = = High Low 7 8 2. Circuit Diagram & Key Data 455KHz resonator 3 58 50 T17 T1 48 40 18 10 08 00 23 T9 C0 R0 R1 R2 R3 K0 K1 K2 K3 D0 D8 D9 D1 D2 D3 D4 D5 D6 D7 OSC1 4 59 51 T18 T10 T2 49 41 19 11 09 01 C1 22 OSC2 5 GTEC-0012S P 5A 52 T11 T3 4A 42 1A 12 0A 02 C2 6 5B 53 T12 4B 43 1B 13 0B 03 C3 A T4 7 5C 54 T13 4C 44 1C 14 0C 04 C4 B T5 21 8 REM OUT 5D 55 4D 45 1D 15 0D 05 C5 T14 T6 C 9 D T7 5E 56 T15 4E 46 1E 16 0E 06 C6 10 T16 T8 5F 57 M 4F 47 1F 17 0F 07 47uF 16V 11 24 12 Vdd + 13 1 RESET 14 - 15 2 GND 16 0.1uF 17 18 19 20 Note 1. C4, C5,C6 can be used to set the custom code for TC9148 2. NEC 6122 only have C0, C1, C2, C3 setting for customer code

  8. 8 8 * REFERENCE : Method of demo Board control and key matrix POWER : 5V OSCILLATOR IR LED EPROM (27C256) LGS GMS30000 EVA WDTM RESET S/W C4 C5 C6 M C0 C1 C2 C3 1 2 3 4 5 6 7 8 D7 D6 K0 K1 K2 K3 R0 R1 R2 R3 04 05 06 07 02 03 01 00 D0 D8 0C 0D 0E 0F 0A 0B 09 08 14 15 16 17 12 13 D9 11 10 D1 1C 1D 1E 1F 1A 1B 19 18 D2 44 45 46 47 42 43 41 40 D3 4C 4D 4E 4F 4A 4B 49 48 D4 54 55 56 57 52 53 51 50 D5 5D 5E 5F 5A 5B 5C 59 58 58 T2 T4 T5 T3 T1 T7 T6 T8 T9 T10 T13 T14 T15 T16 T11 T12 T17 T18 P B C A D

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