Watch our presentations or instructional videos
|• Ultrasonic Park Assist Flash MCU ( ❋ Items in this solution Δ Other related products )|
|Part Number||Input |
|VDD||IO / ADC||TIMER||ROM/RAM||CLOCK||Interface||OTHERS||PACKAGE|
|❋||HT45F391||-||4.5V ~ 5.5V||11 / 8bitx8||2||4KW/160||HIRC/LIRC||BCU||OPA/SCF/AEP||16NSOP|
|Δ||HT45F39||8V ~ 16V||-||11 / 8bitx8||2||4KW/160||BCU||OPA/SCF/AEP||16NSOP|
|• RAM Mapping LED Controller & Driver ( ❋ Items in this solution Δ Other related products )|
|Part Number||VDD||Max. Resolution |
Row x Com
|Row Source |
|Com Sink |
|❋||HT16K33||4.5V ~ 5.5V||16 x 8 |
12 x 8
8 x 8
|20mA||160mA||I²C||13 x 3 |
10 x 3
8 x 3
|Δ||HT1632C||4.5V ~ 5.5V||32 x 8 |
24 x 16
|Δ||HT1635A||4.5V ~ 5.5V||44 x 8||50mA||250mA||4-Wire||-||64LQFP|
|Δ||HT1635B||4.5V ~ 5.5V||44 x 8||50mA||250mA||I²C||-||64LQFP|
Ultrasonic distance measurement products can provide improved measurements over the traditional tape measurement type in applications such as building, decoration, engineering and so on.
The Holtek HT45F391 MCU is specifically designed for such handheld ultrasonic distance measurement applications. The ultrasonic echo signal will be amplified, filtered and digitally processed in the internal dedicated ultrasonic sensor circuits. Holtek also provides users with all required technical support related to the product development, including block diagram, application circuits, PCBs and component list etc. The associated technical documents can be obtained by clicking on the “Learn more about our application solutions”.
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System Architecture and Connection Diagram
This application solution provides a reference design which is a highly integrated solution using very few external components. It includes a power supply circuit, temperature detection circuit reference voltage circuit, digital LED driver circuit and ultrasonic transmitter and receiver circuit etc. The application shows a complete ultrasonic distance measurement reference design solution.
Presentation and Instructional Video
Optical direct reading remote water meter presentation video(1)
Optical direct reading remote water meter presentation video(2)
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