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HT1623 from HOLTEK

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HT1623

Manufacturer: HOLTEK, HDL

RAM Mapping 4816 LCD Controller for I/O MCU
Partnumber Manufacturer Quantity Availability
HT1623 HOLTEK, HDL 222 In Stock

Description and Introduction

RAM Mapping 4816 LCD Controller for I/O MCU The HT1623 is a manufacturer part from HOLTEK. It is a 32×4 LCD driver with built-in display RAM. Key specifications include:

- **Supply Voltage**: 2.4V to 5.2V  
- **LCD Voltage**: 2.4V to 5.2V (supports 1/2 or 1/3 bias)  
- **Display Segments**: 32 segments × 4 commons  
- **Built-in Display RAM**: 32×4 bits  
- **Interface**: 3-wire serial interface  
- **Oscillator**: On-chip RC oscillator (external clock optional)  
- **Power Consumption**: Low power design suitable for battery-operated devices  
- **Package Options**: 48-pin SSOP, 48-pin QFP  

For detailed specifications, refer to HOLTEK's official datasheet.

Application Scenarios & Design Considerations

RAM Mapping 4816 LCD Controller for I/O MCU

Alternative Part Number

  • BU9796AFS --: LCD segment driver with similar I2C/parallel interface and comparable segment count, widely available and pin-compatible in many designs.
  • PCF8566 --: Well-known LCD segment driver IC with similar drive capability and interface, good drop-in candidate after pinout verification.
  • HT1622 --: Same Holtek LCD driver family with closely matching specifications, easiest functional replacement though pin count may differ.
  • PCF8563 --: Widely available I2C real-time clock/calendar IC in the same small display-driver-adjacent category; different series and well documented, good drop-in candidate for timing functions.
  • HT16K33 --: Integrated LED/display driver with key scanning from a different series than HT1623; commonly used as a functional substitute for segment display driving.
  • TM1628 --: Segment LCD/LED display driver with similar driving capability from a different vendor and naming series, offering a cost-effective alternative.

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