The TM1621 is a 128 pattern (32><4), memory mapping, and multi-function LCD driver. The S/W configuration feature of the TM1621 makes it suitable for multiple LCD applications including LCD modules and display subsystems. Only four or five lines are required for the interface between the host controller and the TM1621. The TM1621 contains a power down command to reduce power consumption. Brand : Titan Micro DATASHEET

TM1637 is a kind of LED (light-emitting diode display) drive control special circuit with keyboard scan interface and it's internally integrated with MCU digital interface, data latch, LED high pressure drive and keyboard scan. This product is in DIP20/SOP20 package type with excellent performance and high quality, which is mainly applicable to the display drive of induction cooker, micro-wave oven and small household electrical appliance. Brand : TITAN MICRO DATASHEET

TM1668 is a special circuit for LED (light-emitting diode) driver control. It integrates with different circuits such as MCU digital port, data latch, LED high-voltage drive, etc. The product has good performance and reliable quality, and is mainly applied in display drive of VCR, VCD, DVD, home theater and other similar products. Brand : Titan Micro DATASHEET