一華半導體股份有限公司 EN/DECODER MOSDESIGN SEMICONDUCTOR CORP. M318E 3 STATES ENCODER 3 態編碼 IC GENERAL DESCRIPTION 功能敘述 The M318E is a CMOS ASIC encoder. It will en-code 12 parallel data inputs (A0~A11) and serially TE transmit them to the output when transmits enable (TE) depressed. The address inputs are 3 states i.e. LOW (0)、OPEN (X) or HIGH(1). It will transmit 1 cycle each depressed. FEATURES 產品特長 • Same Rosc matched to the DECODER M318D/F • 318 =387,420,489 codes, “0”、”X”、”1” Tri-state • Internal code A0~A7 1 0 1 1 1 0 A8~A11 • 1 cycle transmission each time • Direct data transmit type : (Eliminating TE and diodes) ― M318E-H : switch to VDD APPLICATIONS 產品應用 • Car/home alarm system, garage control etc.. BLOCK DIAGRAM 功能方塊圖 X Freq Divider Oscillator Y Output Driver DO TE A0 Input Central IR Control Control Logic unit Carrier A11 *All specs and applications shown above subject to change without prior notice. ( 以㆖電路及規格僅供參考,本公司得逕行修正 ) 1/5 2001-09-10 一華半導體股份有限公司 EN/DECODER MOSDESIGN SEMICONDUCTOR CORP. M318E 3 STATES ENCODER 3 態編碼 IC ABSOLUTE MAXIMUM RATING (TA=25℃) Parameter Supply Voltage Input Voltage Operating Temperature Rating -0.3 to 15 Unit V -0.2~VDD +0.2 V -50 to 125 ℃ 0 to 70 ℃ Storage Temperature ELECTRICAL CHARACTERISTICS Characteristics Operating Voltage Sym. VDD Min. 2.4 Typ. ― Max. 15 Unit V Operating Current IOP ― 0.1 1 μA Quiescent Current ISB ― 0.1 mA Output Drive Current IO ― 2 0.5 ― VIH VDD –0.2 VDD VDD VIL VSS ― VSS VSS +0.2 ― Input Voltage Oscillator Frequency Fosc 76 mA Conditions No load @VDS=1.2V V KHz External±30%, Rosc=240KΩ PIN DESCRIPTION No. 1~8 9 10~13 14 15 16 17 18 Name A0~A7 VSS A8~A11 TE Y X DO VDD M318E Description Address inputs Negative power supply Address inputs Transmit enable Oscillator output Oscillator input Data output Positive power supply A0 18 VDD A1 DO A2 X A3 Y A4 TE A5 A11 A6 A10 A7 A9 VSS 2/5 1 9 10 2001-09-10 A8 一華半導體股份有限公司 EN/DECODER MOSDESIGN SEMICONDUCTOR CORP. M318E 3 STATES ENCODER 3 態編碼 IC TIMING WAVEFORM (1) Bit format 1 40 41 119 120 160 200 201 279 280 320 OSC “0” 40 CLOCKS 120 CLOCKS “OPEN” 40 CLOCKS 120 CLOCKS “1” 120 CLOCKS 40 CLOCKS 120 CLOCKS 40 CLOCKS 120 CLOCKS 120 CLOCKS 40 CLOCKS 40 CLOCKS (2) TIMING DIAGRAM TE D0~D3 (M41831E-H) 1st WORD DO 18 bits SYNC 2nd WORD 4th WORD 4 bits SYNC M318E F-V curve 250 75K 82K 200 91K 100K 120K 150 150K Freq (KHz) 180K 100 200K 220K 270K 50 360K 0 2 7 12 17 VDD ( Volt ) 3/5 2001-09-10 一華半導體股份有限公司 EN/DECODER MOSDESIGN SEMICONDUCTOR CORP. M318E 3 STATES ENCODER 3 態編碼 IC OPERATING FLOWCHART Power ON Stand-by N TEB depressed? 4 words data transmitted N TEB still depressed? Y 4/5 2001-09-10 一華半導體股份有限公司 EN/DECODER MOSDESIGN SEMICONDUCTOR CORP. M318E 3 STATES ENCODER 3 態編碼 IC APPLICATION DIAGRAM 參考電路圖 (1) DIP PACKAGE 直接發射 (VDD) VDD M318E A0 0 VDD VDD 1 1 M318E-H VDD 1 IR / RF 18 A0 0 1 IR / RF 18 DO DO A1 A1 X A2 Y X A2 Rosc Y Rosc VDD A3 A3 TE A4 VDD A4 A11/D0 A5 D0 A5 A10/D1 A6 D1 A6 A9/D2 A7 D2 A7 VSS 9 A8/D3 10 VSS 9 D3 10 (2) SOP PACKAGE 直接發射 (VDD) VDD M318E-S A0 0 VDD VDD 1 1 M318E-HS VDD 1 IR / RF 20 A0 0 1 IR / RF 20 DO DO A1 A1 X A2 Y X A2 Rosc Y Rosc VDD A3 A3 TE A4 VDD A4 A11/D0 A5 D0 A5 A10/D1 A6 D1 A6 A9/D2 A7 D2 A7 A8/D3 VSS 10 11 D3 VSS 10 5/5 11 2001-09-10