HT12E HOLTEK, HT12E Datasheet
HT12E
Specifications of HT12E
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HT12E Summary of contents
Page 1
... Other remote control systems bits via infrared transmission medium upon receipt of a trigger signal. The capability to select a TE trigger on the HT12E or a DATA trigger on the HT12A further enhances the application flexibility of the 2 ries of encoders. The HT12A additionally provides a 38kHz carrier for infrared systems. ...
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... Block Diagram TE Trigger HT12E DATA Trigger HT12A The address data pins are available in various combinations (refer to the address/data table). Note: Pin Assignment Rev. 1.20 HT12A/HT12E 2 February 20, 2009 ...
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... VSS I VDD I Note: D8~D11 are all data input and transmission enable pins of the HT12A transmission enable pin of the HT12E. Approximate Internal Connections Rev. 1.20 Description Input pins for address A0~A7 setting These pins can be externally set to VSS or left open Input pins for address/data AD8~AD11 setting ...
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... Operating Current DD I Output Drive Current DOUT V H Input Voltage Input Voltage IL f Oscillator Frequency OSC R TE Pull-high Resistance TE Rev. 1.20 +5.5V Supply Voltage (HT12E) ........................... 0.3V to 13V SS +0.3V Storage Temperature ............................ 125 C DD Test Conditions Min. V Conditions DD 2.4 3V Oscillator stops load f =455kHz OSC ...
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... The 2 series of encoders begin a 4-word transmission cycle upon receipt of a transmission enable (TE for the HT12E or D8~D11 for the HT12A, active low). This cycle will repeat itself as long as the transmission enable (TE or D8~D11) is held low. Once the transmission enable returns high the encoder output completes its final cycle and then stops as shown below ...
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... A0 to AD11 for the HT12E encoder and A0 to D11 for the HT12A encoder. During information transmission these bits are transmitted with a preceding synchronization bit. If the trigger signal is not applied, the chip enters the standby mode and consumes a reduced current of less than 1 A for a supply voltage of 5V ...
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... A1 A2 Transmission Enable For the HT12E encoders, transmission is enabled by applying a low signal to the TE pin. For the HT12A encoders, transmission is enabled by applying a low signal to one of the data pins D8~D11. Two Erroneous HT12E Application Circuits The HT12E must follow closely the application circuits provided by Holtek (see the Application circuits ). ...
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... Flowchart HT12A Note: D8~D11 are transmission enables of the HT12A the transmission enable of the HT12E. Rev. 1.20 HT12A/HT12E HT12E 8 February 20, 2009 ...
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... Oscillator Frequency vs. Supply Voltage The recommended oscillator frequency is f Application Circuits Rev. 1.20 (decoder (HT12E encoder) OSCD OSCE 1 f (HT12A encoder) OSCE 3 9 HT12A/HT12E February 20, 2009 ...
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... Dimensions in mil Min. Nom. 880 240 115 115 14 45 100 300 Dimensions in mil Min. Nom. 845 240 115 115 14 45 100 300 10 HT12A/HT12E Max. 920 280 195 150 22 70 325 430 Max. 880 280 195 150 22 70 325 430 February 20, 2009 ...
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... MO-095a (see fig2) Symbol Rev. 1.20 Dimensions in mil Min. Nom. 845 275 120 110 14 45 100 300 11 HT12A/HT12E Max. 885 295 150 150 22 60 325 430 February 20, 2009 ...
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... SOP (300mil) Outline Dimensions MS-013 Symbol Rev. 1.20 Dimensions in mil Min. Nom. 393 256 12 496 HT12A/HT12E Max. 419 300 20 512 104 February 20, 2009 ...
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... SOP 20W Symbol Description A Reel Outer Diameter B Reel Inner Diameter C Spindle Hole Diameter D Key Slit Width T1 Space Between Flange T2 Reel Thickness Rev. 1.20 HT12A/HT12E Dimensions in mm 330.0 1.0 100.0 1.5 +0.5/-0.2 13.0 2.0 0.5 +0.3/-0.2 24.8 30.2 0.2 13 February 20, 2009 ...
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... P1 Cavity to Perforation (Length Direction) A0 Cavity Length B0 Cavity Width K0 Cavity Depth t Carrier Tape Thickness C Cover Tape Width Rev. 1.20 HT12A/HT12E Dimensions in mm +0.3/-0.1 24.0 12.0 0.1 1.75 0.10 11.5 0.1 +0.1/-0.0 1.5 +0.25/-0.00 1.50 4.0 0.1 2.0 0.1 10.8 0.1 13 ...
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... Holtek s products are not authorized for use as critical components in life support devices or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw. Rev. 1.20 HT12A/HT12E 15 February 20, 2009 ...