PCF2112CT/1: NXP's Low-Power CMOS LCD Controller/Driver for Alphanumeric Displays

The PCF2112CT/1 from NXP Semiconductors is a highly integrated, low-power CMOS LCD controller and driver IC specifically engineered for alphanumeric displays. This device is a cornerstone solution for applications where efficient power management and clear information presentation are paramount. It is commonly found in a wide array of consumer, industrial, and automotive electronics, such as telephones, multifunction meters, and dashboard displays, where reliability and clarity are essential.

A key strength of the PCF2112CT/1 lies in its on-chip generation of LCD supply and bias voltages. This integrated feature significantly reduces the need for external components, simplifying board design, minimizing the bill of materials (BOM), and saving valuable PCB space. The controller is designed to drive up to 2 commons and 32 segments, making it perfectly suited for displays with 2 lines of 16 characters or other similar alphanumeric configurations.

Engineered for battery-operated and portable devices, the PCF2112CT/1 excels in ultra-low-power consumption. Its CMOS technology ensures minimal current draw during operation, which is critical for extending battery life. Communication with a host microcontroller is achieved through a versatile I²C-bus interface, allowing for easy control with only two pins and facilitating a simple connection to a wide range of microprocessors.

Furthermore, the device includes an integrated display RAM that stores the data to be presented, offloading this task from the main system processor. Its robust design ensures stable performance across a wide temperature range and varying supply voltages.

ICGOODFIND: The PCF2112CT/1 stands out as a highly optimized and integrated solution for alphanumeric display needs. Its combination of on-chip voltage generation, ultra-low power consumption, and a standard I²C interface makes it an exceptional choice for designers aiming to create compact, efficient, and reliable user interfaces.

Keywords:

Low-Power CMOS

LCD Controller/Driver

Alphanumeric Displays

I²C-bus Interface

On-chip Generation