M1EA-S ETC1
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Technical content
2 STATES ENCODER
2 態編碼 IC EN/DECODER M1EA 一華半導體股份有限公司MOSDESIGN SEMICONDUCTOR CORP. GENERAL DESCRIPTION 功能敘述 The M1EA is a CMOS ASIC encoder. It will en-code 12 parallel data inputs and serially transmit them to the output when transmit enable (TE) depressed. These address inputs are 2 states i.e. LOW (0) or OPEN (1). FEATURES 產品特長 ‧ Same Rosc matched to the D ecoder M1DA/FA. ‧ 212 = 4,096 codes . ‧ 4 cycles transmission each time . ‧ Direct data transmit type ：(Eliminating TE and diodes) . ─M1EA-H：switch to VDD. 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 X A11 DO Freq Divider Logic unit Control Output DriverY TE
2 態編碼 IC EN/DECODER M1EA 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 12 V Input Voltage -0.2~VDD +0.2 V Operating Temperature 0 to 70 ℃ Storage Temperature -50 to 125 ℃
ELECTRICAL CHARACTERISTICS
Characteristics Sym. Min. Typ. Max. Unit Conditions Operating Voltage VDD 2.4 ─ 12 V Operating Current IOP ─ 0.1 1 mA No load Quiescent Current ISB ─ 0.1 0.5 μA 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. Name Description 1~8 A0~A7 Address inputs
9 VSS Negative power supply
10~13 A8~A11 Address inputs
14 TE Transmit enable
15 Y Oscillator output
16 X Oscillator input
17 DO Data output
18 VDD Positive power supply
X Y A11 A10 TE
2 態編碼 IC EN/DECODER M1EA 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 2 32 33 64 65 96 OSC
32 CLOCKS 64 CLOCKS
64 CLOCKS 32 CLOCKS
VDD ( Volt ) Freq (KHz) 75K 82K 91K 100K 120K 150K 180K 200K 220K 270K 360K M1EA F-V curve
2 態編碼 IC EN/DECODER M1EA 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
2 態編碼 IC EN/DECODER M1EA 一華半導體股份有限公司MOSDESIGN SEMICONDUCTOR CORP. RECONNENDED OSCILLATOR PARAMETERS Rosc (KΩ) M1EA/DA/FA (KHz) 75 261 82 241 91 220 100 203 120 168 150 133 180 113 200 101 220 94 270 75 300 67 330 63 360 56 DATA OUTPUT M1EA (D0~D3) M1DA/FA (D0~D3) 0 (VSS) 1 (VDD) 1 (OPEN) 0 (VSS) 0 50 100 150 200 250 300 350 400 100 150 200 250 300 Rosc ( KO ) Freq ( KHz ) M1EA/DA/FA Freq-Rosc Chart ( @Vdd=12V )
2 態編碼 IC EN/DECODER M1EA 一華半導體股份有限公司MOSDESIGN SEMICONDUCTOR CORP. APPLICATION DIAGRAM 參考電路圖 M1EA VSS VDD DO X Y Rosc TE IR / RF 1 18 9 10 M1EA-S VSS VDD DO X Y A11/D3 Rosc TE IR / RF A10/D2 A9/D1 A8/D0 1 20 10 11 M1EA VSS VDD DO X Y Rosc IR / RF 1 16 8 9 TE