M3EB ETC2
Document overview
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Technical content
3 STATES ENCODER
3 態編碼IC EN/DECODER M3EB 一華半導體股份有限公司MOSDESIGN SEMICONDUCTOR CORP. GENERAL DESCRIPTION 功能敘述 The M3EB is a CMOS ASIC decoder. It will en-code 12 parallel input and serially transmit them to the output when D0 ~ D3 FEATURES 產品特長 ‧ Built-in IR carrier : suffix-I. ‧ Up to 310 =59,049 codes, “0” 、”X” 、” 1” Tri-states. ‧ Single resistor oscillator. ‧ Data transmit over 30 second auto power off. ‧ 2 or 4 direct date transmit ( internal pull-low resistor ). ‧ M3EB-2：10 address ，2 data. ‧ M3EB-4：8 address ，4 data. APPLICATIONS 產品應用 ‧ Car/home alarm system, garage control etc .. BLOCK DIAGRAM 功能方塊圖 *All specs and applications shown above subject to change without prior notice. ( 以上電路及規格僅供參考 ,本公司得逕行修正 ) Oscillator Control Input OSC DOUT Freq Divider Logic unit Central Output Driver Carrier IR Control
3 態編碼IC EN/DECODER M3EB 一華半導體股份有限公司MOSDESIGN SEMICONDUCTOR CORP. ABSOLUTE MAXIMUM RATING (TA=25℃) Parameter Rating Unit Supply Voltage -0.3 to 1 5 V Input Voltage -0.2~VDD +0.2 V Operating Temperature -20 to 75 ℃ Storage Temperature -50 to 125 ℃
ELECTRICAL CHARACTERISTICS
Characteristics Sym. Min. Typ. Max. Unit Conditions Operating Voltage VDD 2.4 ─ 15 V Quiescent Current ISB ─ 0.1 1 μA Operating Current IOP ─ 0.1 0.5 mA No load Output Drive Current IO ─ 2 ─ mA @VDS=1.2V VIH VDD –0.2 VDD VDD Input Voltage VIL VSS VSS VSS +0.2 V Oscillator Frequency Fosc ─ 76 ─ KHz External±30% PIN DESCRIPTION No. M3F Description 1~8 A0~A7 3 states address inputs
9 VSS Negative power supply
10~11 A8/D0，A9/D1 3 states address inputs 12~13 D2，D3 Direct data transmission enable
14 OSC Oscillator input
15 DOUT Data output
16 VDD Positive power supply
3 態編碼IC EN/DECODER M3EB 一華半導體股份有限公司MOSDESIGN SEMICONDUCTOR CORP. TIMING WAVEFORM (1) Bit format (2) TIMING DIAGRAM "0" "OPEN" 1 64 65 192 256 OSC 320 448 512
192 CLOCKS
"1" 64 CLOCKS
64 CLOCKS 64 CLOCKS 192 CLOCKS
192 CLOCKS64 CLOCKS
192 CLOCKS 192 CLOCKS 64 CLOCKS
192 CLOCKS 64 CLOCKS
D0~D3 ( M3E,-H ) 1st word
12 Bits
( M3E,-L ) DO TE
4 Bits
D0~D3 2 7 12 17 150 250 350 450 550 VDD ( Volt ) FREQ ( KHz ) 180K 200K 240K 300K 360K 470K 560K 680K 750K 820K 910K M3EB F-V CURVE
3 態編碼IC EN/DECODER M3EB 一華半導體股份有限公司MOSDESIGN SEMICONDUCTOR CORP. OPERATING FLOWCHART Power ON Stand-by TEB depressed? 4 words data transmitted TEB still depressed? Y N N
3 態編碼IC EN/DECODER M3EB 一華半導體股份有限公司MOSDESIGN SEMICONDUCTOR CORP. RECONNENDED OSCILLATOR PARAMETERS Rosc (KΩ) M3EB/DB (KHz) 180 388 200 352 240 294 300 234 360 196 470 152 560 128 680 102 750 94 820 88 910 74 DATA OUTPUT M3EB (D0~D3) M3DB (D0~D3) X (OPEN) 0 (VSS) 1 (VDD) 1 (VDD) POWER ON 0 (VSS) 0 100 200 300 400 500 600 700 800 900 1000 100 200 300 400 Rosc ( KO) FREQ ( KHz ) M3EB/DB Freq-Rosc Chart ( @Vdd=12V )
3 態編碼IC EN/DECODER M3EB 一華半導體股份有限公司MOSDESIGN SEMICONDUCTOR CORP. APPLICATION DIAGRAM 參考電路圖 A7 VSS VDD OSC Rosc M3EB-4 A9/D1 A8/D0 1 16 8 9 VDD DOUT IR / RF Rosc A9/D1 A8/D0 VSS VDD VDD M3EB-2 1 16 8 9 OSC DOUT IR / RF IR 內建發射 A9/D1 A8/D0 VSS VDD M3EB-2I 1 16 8 9 VDD DOUT Rosc OSC IR 內建發射 A7 VSS VDD OSC Rosc M3EB-4I A9/D1 A8/D0 1 16 8 9 VDD DOUT
3 態編碼IC EN/DECODER M3EB 一華半導體股份有限公司MOSDESIGN SEMICONDUCTOR CORP. APPLICATION DIAGRAM 參考電路圖 (SOP PACKAGE) A7 VSS VDD OSC Rosc M3EB-4S A9/D1 A8/D0 1 16 8 9 VDD DOUT IR / RF Rosc A9/D1 A8/D0 VSS VDD VDD M3EB-2S 1 16 8 9 OSC DOUT IR / RF IR 內建發射 A9/D1 A8/D0 VSS VDD M3EB-2IS 1 16 8 9 VDD DOUT Rosc OSC IR 內建發射 A7 VSS VDD OSC Rosc M3EB-4IS A9/D1 A8/D0 1 16 8 9 VDD DOUT