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Home BS45F3346 24SSOP (5 pieces)
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BS45F3346 24SSOP (5 pieces)

US$3.86
Out of stock
Product ID
BS45F3346-24SSOP
DESCRIPTION

The BS45F3346 is a Flash Memory A/D type 8-bit high performance RISC architecture microcontroller with integrated Proximity Sensing, Touch Key and H-bridge driver functions. It includes touch keys, a UART communication interface and an internal temperature sensor have also been added. The UART communication interface includes control options for an external smart BLE/WIFI module. It is suitable for proximity sensing related products, such as sanitary products, bathroom products, home appliances, security products, etc.

The BS45F3346 includes an integrated active IR proximity sensor circuit which greatly reduces the number of external components, thus reducing production BOM costs and PCB size.

The BS45F3346 has a built-in 1-channel H-bridge driver with a maximum motor peak current of 3.0A. A full range of protection functions are integrated. The H-bridge driver includes separate power supplies for the control circuits and the motor power supply and also includes a current sensing pin to allow the system to measure the motor current using an external resistor.

NOTE
  1. Each purchasing unit includes 5 pieces of IC.
  2. The product image is for showing the product appearance, the pin count shown may not match the product pin count.
Quantity Discounts refresh image
Select Quantity Discount Unit price
1-9 - US$3.86
10-99 15% US$3.28
100-499 25% US$2.90
500+ 35% US$2.51
For more quantity discounts please contact us
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FEATURES
  1. Operating voltage : 2.5V~5.5V
  2. Up to 0.5μs instruction cycle with 8MHz system clock at VDD=5V
  3. Fully integrated internal oscillators require no external components
  4. Oscillator types :
    - Internal High Speed 8MHz RC – HIRC
    - Internal Low Speed 32kHz RC – LIRC
  5. 4 touch key functions – fully integrated without requiring external components
  6. Two Timer Modules for time measure, compare match output, PWM output or single pulse output function
  7. Infrared LED constant current driver with a driving current of up to 384mA (Max.)
  8. Proximity Sensing Circuit
    - Two Operational Amplifiers
    - One Comparator
  9. 1 channel H-bridge motor driver : low MOSFET On-resistance : 0.3Ω (HS+LS)
  10. Protection Features
    - HBVDD Under Voltage Lock-Out
    - Over Current Protection
    - Thermal Shutdown Protection
    - Output Short Circuit Protection
PRODUCT SERIES
DEVELOPMENT TOOL
  1. Debug Adapter : e-Link
  2. Development Environment : HT-IDE3000
RESOURCES
  1. MCU : Holtek BS45F3346, Proximity Sensing 4-Key Touch Flash MCU, including datasheet, package dimension, etc.
Datasheet V1.10 (2.15 MB)
More Information
HS Code (reference) 8542.31.00.00-2
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