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HT45F39 Datasheet(PDF) 75 Page - Holtek Semiconductor Inc |
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HT45F39 Datasheet(HTML) 75 Page - Holtek Semiconductor Inc |
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75 / 102 page  Rev. 1.10 74 July 01, 2016 Rev. 1.10 75 July 01, 2016 HT45F39/HT45F391 Ultrasonic Distance Measurement 8-bit Flash MCU HT45F39/HT45F391 Ultrasonic Distance Measurement 8-bit Flash MCU Bus Control Unit for 12V Interface Application ThefollowingapplicationBlockdiagramillustratesthe12Vinterfaceapplication.Notethatthe IOCNTbitisonlyusedforthe5Vinterfaceapplication.Inthe12Vinterface,thisbitshouldbe clearedto"0". Host PA7 PA2 PA3 PA6 100Ω 10kΩ 10kΩ 10kΩ 10kΩ 5V PA7 PA2 PA3 PA6 100Ω 10kΩ 10kΩ 470Ω 100Ω 470Ω 470Ω 100Ω 470Ω IOC IOC INSEL1 INSEL1 PA3 I/O PA6 I/O 1 0 PA3 I/O PA6 I/O 1 0 1 0 1 0 INSEL2 INSEL2 IOC IOC HT45F39/HT45F391(1) HT45F39/HT45F391(2) Down Stream Up Stream Up Stream Down Stream BCU BCU 12V 5V 12V 5V 12V 5V 12V 10kΩ 10kΩ 12V Interface Application Block Diagram |
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