一華半導體股份有限公司 EN/DECODER MOSDESIGN SEMICONDUCTOR CORP. 2 STATES ENCODER 2 态编码 IC M1EN GENERAL DESCRIPTION 功能叙述 The M1EN is a CMOS ASIC encoder. It will en-code 12 parallel inputs and serially transmit them to the output when transmits enable TE depressed. These address inputs are 2 states i.e. LOW (0) or OPEN (1). FEATURES 产品特长 • Same Rosc matched to the Decoder M1D/F. • 212 = 4,096 codes. • 4 cycles transmission each time. • Direct data transmit type：(Eliminating TE and diodes). ─ M1EN-H：Switch to VDD. APPLICATIONS 产品应用 • Car/home alarm system, garage control etc.. BLOCK DIAGRAM 功能方块图 X Oscillator Y Freq Divider Output Driver DO TE A0 Input Control Control Logic unit A11 *All specs and applications shown above subject to change without prior notice. ( 以上电路及规格仅供参考,本公司得径行修正 ) 1/6 2005-06-15 一華半導體股份有限公司 EN/DECODER MOSDESIGN SEMICONDUCTOR CORP. 2 STATES ENCODER 2 态编码 IC M1EN ABSOLUTE MAXIMUM RATINGS (TA=25℃) Parameter Supply Voltage Input Voltage Rating -0.3 to 12 Unit V -0.2~VDD +0.2 V 0 to 70 ℃ -50 to 125 ℃ Operating Temperature Storage Temperature ELECTRICAL CHARACTERISTICS Characteristics Operating Voltage Sym. VDD Min. 2.4 Typ. ─ Max. 12 Unit V Operating Current IOP ─ 0.1 1 mA Quiescent Current ISB ─ 0.1 0.5 μA Output Drive Current IO ─ 2 ─ mA VIH VDD –0.2 VDD VDD VIL VSS VSS VSS +0.2 Fosc ─ 76 ─ Input Voltage Oscillator Frequency Conditions No load @VDS=1.2V V KHz External±30%, Rosc=220KΩ PIN DESCRIPTION No. 1~8 9 10~13 Name M1EN Description A0~A7 VSS A8~A11 Address inputs Negative power supply Address inputs 14 15 16 TE Y X Transmit enable Oscillator output Oscillator input 17 18 DO VDD Data output Positive power supply A0 18 VDD A1 DO A2 X A3 Y A4 TE A5 A11 A6 A10 A7 A9 VSS 2/6 1 9 10 2005-06-15 A8 一華半導體股份有限公司 EN/DECODER MOSDESIGN SEMICONDUCTOR CORP. 2 STATES ENCODER 2 态编码 IC M1EN TIMING WAVEFORM (1) BIT FORMAT 1 2 32 33 64 65 96 OSC 32 CLOCKS "0" 64 CLOCKS 64 CLOCKS "OPEN" 32 CLOCKS (2) TIMING DIAGRAM TE A0 DO 12 BITS A11 A0 1st WORD A11 4th WORD SYNC SYNC M1EN F-V curve 250 75K 82K 200 91K 100K 120K 150 150K Freq (KHz) 180K 100 200K 220K 50 270K 360K 0 2 7 12 17 VDD ( Volt ) 3/6 2005-06-15 一華半導體股份有限公司 EN/DECODER MOSDESIGN SEMICONDUCTOR CORP. 2 STATES ENCODER 2 态编码 IC M1EN OPERATING FLOWCHART Power ON Stand-by N TEB depressed? 4 words data transmitted N TEB still depressed? Y 4/6 2005-06-15 一華半導體股份有限公司 EN/DECODER MOSDESIGN SEMICONDUCTOR CORP. 2 STATES ENCODER 2 态编码 IC M1EN RECONNENDED OSCILLATOR PARAMETERS Rosc (KΩ) 75 M1EN/D/F (KHz) 218 82 199 91 100 185 170 120 142 150 180 115 95 200 86 220 270 78 63 300 57 330 360 51 49 DATA OUTPUT M1EN (D0~D3) 0 (VSS) 1 (OPEN) M1D/F (D0~D3) 1 (VDD) 0 (VSS) Freq-Rosc chart (@VDD=12V) 250 200 150 Freq ( KHz ) M1EN/D/F 100 50 0 0 50 100 150 200 250 300 350 400 Rosc ( KÙ ) 5/6 2005-06-15 一華半導體股份有限公司 EN/DECODER MOSDESIGN SEMICONDUCTOR CORP. 2 STATES ENCODER 2 态编码 IC M1EN APPLICATION DIAGRAM 参考电路图 (1) 4 DATA TYPE DIP 18 PIN DIP 16 PIN M1EN M1EN VDD A0 1 A0 DO A1 Y A3 1 IR / RF 16 DO A2 X X A2 VDD IR / RF 18 A3 Rosc Y Rosc A4 A4 TE A5 TE A5 D3 A6 D3 A6 D2 A7 D2 A7 D1 VSS VSS 9 8 D1 9 D0 10 SOP 20 PIN 直接发射(VDD) M1EN-H M1EN-S VDD A0 1 18 A1 1 IR / RF IR / RF A0 DO X A1 A2 Y 20 VDD DO Rosc X A3 A2 Y Rosc A4 LO A3 A5 D3 A4 TE A6 D2 A5 D3 A7 D1 A6 D2 D0 A7 D1 VSS 9 10 VSS 6/6 10 11 2005-06-15 D0