مدار مجتمع (آی سی) آی‌سی مدیریت توان (پی‌ام‌آی‌سی) درایور نمایشگر

Product Attributes

Introduction

HK1621 is a peripheral device for expanding MCU I/O ports. With a display matrix of 32×4, it is a 128-dot matrix memory-mapped multifunctional LCD driver circuit. The software features of HK1621 make it well-suited for LCD display applications, including LCD modules and display subsystems. The interface between the host controller and HK1621 requires only 3 or 4 ports. The Power Down command can reduce power consumption.

Features

• Operating voltage: 2.4V~5.2V
• On-chip 256kHz RC oscillator circuit
• External 32.768kHz or 256kHz crystal input
• 1/2 or 1/3 bias, 1/2, 1/3 or 1/4 duty cycle
• Internal clock frequency
• Two selectable buzzer frequencies (2kHz/4kHz)
• Power down command for reduced power consumption
• Internal clock and WDT watchdog circuit
• Clock and WDT overflow output
• 8 selectable clock/WDT options with 32×4 LCD driver
• 32×4-bit display RAM
• 3-wire serial interface
• Internal LCD driver frequency
• Software configurable
• Data mode and command mode instructions
• R/W address auto-increment
• Three data access modes; VLCD pin for LCD voltage adjustment