HLF1621 – RAM Mapping 32×4 LCD Controller for I/O MCU (SSOP48) | LCD Driver IC | 2.2V–5.0V, 0°C to +70°C | Surface-Mount Package

The HLF1621 (SSOP48) is a high-performance LCD controller/driver designed for microcontroller-based systems requiring direct LCD interfacing. It supports 32 segments × 4 commons (32×4 RAM mapping), providing efficient display control with minimal MCU resource usage.

This device handles LCD refresh, timing, and segment driving automatically, freeing the host MCU for other tasks. Its serial interface allows easy integration with a wide range of microcontrollers, while its low power consumption makes it ideal for portable and battery-powered devices.

Key Features:

• Function: 32×4 RAM-Mapped LCD Controller/Driver

• Technology: CMOS LCD Driver

• Operating Voltage: 2.2V – 5.0V

• Operating Temperature: 0°C to +70°C

• Package Type: SSOP48 (Shrink Small Outline Package)

• Mounting Type: Surface-Mount

• Built-In Display RAM (32×4 Mapping)

• Supports Up to 128 LCD Segments

• Serial Interface Compatible with MCU I/O

• Automatic LCD Drive and Bias Generation

• Low Power Consumption and High Noise Immunity

• Internal Oscillator and Voltage Regulator

Applications:

• Microcontroller-Based LCD Displays

• Meters and Measuring Instruments

• Handheld and Portable Devices

• Industrial and Consumer Electronics

• Embedded System User Interfaces