CP240x LCD Controllers

CP240x LCD controller devices are extremely low power, can drive up to 128 LCD segments and are easily interfaced with any microcontroller (MCU) using SPI or I²C interfaces. Select the best-fit MCU for the system and then add the CP240x to handle LCD requirements efficiently with respect to system size and power consumption.

CP2400/1/2/3 devices are fixed function LCD drivers that can also be used for expanding GPIO, timekeeping and increasing available system RAM by up to 256 bytes. They are controlled using direct and indirect internal registers accessible through the 4-wire SPI or 2-wire SMBus interface. All digital pins on the device are 5 V tolerant.

CP240x LCD Controller Common Specs

Controls up to 128 segments (48-pin package) or 64 segments (32-pin package)
Expands GPIO count by up to 36 pins (48-pin packages) or 20 pins (32-pin package)
Ultra-low power mode with LCD (<1.7 µA typical)
General purpose RAM expands the memory available to host controller

Two general purpose 16-bit timers
20 MHz internal oscillator
4-wire SPI interface operates up to 2.5 Mbps with synchronous external clock or up to 1 Mbps with internal clock (CP2400/2)

2-wire SMBus/1²C interface operates up to 400 kHz with internal clock (CP2401/3)
1.8 - 3.6 V operation with integrated LDO
Shutdown current (0.05 µA typical)

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Find the Right CP240x Device Select Columns

Select Columns

Part Number	LCD Segments	Interface	Dig I/O Pins	Package Type	Package Size (mm)	RAM (kB)	Timers (16-bit)	Temperature Range (°C)
CP2400-GM (NRND) Buy	128	SPI	36	QFN48	7x7	256	2	-40 85
CP2400-GQ (NRND) Buy	128	SPI	36	TQFP48	9x9	256	2	-40 85
CP2401-GM (NRND) Buy	128	I2C	36	QFN48	7x7	256	2	-40 85
CP2401-GQ (NRND) Buy	128	I2C	36	TQFP48	9x9	256	2	-40 85
CP2402-GM (NRND) Buy	64	SPI	20	QFN32	5x5	256	2	-40 85
CP2403-GM (NRND) Buy	64	I2C	20	QFN32	5x5	256	2	-40 85

CP240x LCD Controllers

CP240x LCD Controller Common Specs

Find the Right CP240x Device Select Columns

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