TM1621B Multi-function LCD Driver IC
The TM1621B is a versatile LCD driver IC with memory mapping, designed for a variety of LCD applications, including LCD modules and display subsystems. It requires only 4 or 5 pins for communication with the host controller, and features a power-down command to reduce power consumption during idle periods.
Key Features
- Operating Voltage: 2.4V ~ 5.2V
- Built-in 256kHz RC Oscillator
- Configurable Bias and Duty: Choose from 1/2 or 1/3 bias, and 1/2, 1/3, or 1/4 duty
- Internal Time Base Frequency Source
- Selectable Buzzer Frequencies: 2kHz/4kHz
- Power-Down Command for reduced power consumption
- Built-in Time Base Generator and Watchdog Timer (WDT)
- Overflow Output for Time Base or WDT
- 8 Clock Sources for Time Base/WDT
- 32×4 LCD Driver
- 32×4-bit Display RAM
- 4-Wire Serial Interface
- Internal LCD Driving Frequency Source
- Software Configuration Features
- Data and Command Mode Instructions
- Three Data Access Modes
- VLCD Pin for adjusting LCD operating voltage
- Packaging Options: SSOP48, LQFP44
Applications
The TM1621B is suitable for various LCD display applications, including:
- Home Appliances: Air conditioners, washing machines, water heaters, refrigerators
- Industrial Control: Instrumentation and industrial displays
- Automotive Audio Systems: Car audio LCD displays
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