LCD Controllers

The CP240x extremely low power LCD controller devices can drive up to 128 LCD segments. These devices are easily interfaced with any microcontroller using SPI or I²C interfaces. A benefit to this approach is designers can 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. The devices 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.

Features

Controls up to 128 segments (48-pin packages) 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 w/ 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/I2C 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)

Applications

Documentation Expand All Collapse All

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Data Sheet (2)

Document Name	Description	Version	Last Updated
CP2400-1-2-3.pdf	CP2400-1-2-3 Data Sheet	1.0	8/23/2010
CP2400-C-GDI.pdf	CP2400-C-GDI Die Sales	1.0	8/15/2011

Data Short (1)

Document Name	Description	Version	Last Updated
CP2400_1_2_3_short.pdf	CP2400/01/02/03 Data Short	020310	3/2/2010

User Guides (2)

Document Name	Description	Version	Last Updated
CP2400-DK.pdf	CP2400 and CP2401 Development Kit User's Guide	0.1	12/8/2009
WirelessMBus-EK.pdf	Wireless M-Bus Demonstration Kit User's Guide	0.1	2/22/2010

Application Notes (2)

Document Name	Description	Version	Last Updated
AN451.pdf	AN451: Wireless M-Bus Software Implementation	0.1	2/22/2010
AN452.pdf	AN452: Wireless M-Bus Stack Programmer's Guide	0.1	2/22/2010

Miscellaneous (2)

Document Name	Description	Version	Last Updated
CP240x_QS_Guide.pdf	CP2400/01/02/03 Quick-Start Guide	0.1	12/10/2009
Wireless_MBus_QSG.pdf	Wireless M-Bus Quick Start Guide	0.1	2/16/2010

Development Kits and Resources

Design Tools Expand All Collapse All

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Schematics/Layout (7)

Document Name	Description	Version
ULADI_SiliconLabs_Reader.exe	ADI Ultra-Librarian Reader for CAD/CAE Schematic Footprints and Symbols .bxl Files
CP2400-GM.bxl	CP2400-GM CAD/CAE Schematic Footprints and Symbols	1.0
CP2400-GQ.bxl	CP2400-GQ CAD/CAE Schematic Footprints and Symbols	1.0
CP2401-GM.bxl	CP2401-GM CAD/CAE Schematic Footprints and Symbols	1.0
CP2401-GQ.bxl	CP2401-GQ CAD/CAE Schematic Footprints and Symbols	1.0
CP2402-GM.bxl	CP2402-GM CAD/CAE Schematic Footprints and Symbols	1.0
CP2403-GM.bxl	CP2403-GM CAD/CAE Schematic Footprints and Symbols	1.0

Training (1)

Document Name	Description	Version	Updated
CP240x_Overview.pdf	CP240x 182/64 Segment LCD Driver Overview

Product Matrix

Part Number	Available Documents	Timers (16-bit)	Internal Oscillator	Temperature Range	Other	Package	Dev Kit	RAM	LCD Segments	Dig I/O Pins	Communications
CP2400-GM	Data Sheet Data Short	2	Yes	-40 to 85 °C	Ultra-low power mode	48-pin QFN	CP2400DK	256	128	36	SPI
CP2400-GQ	Data Sheet Data Short	2	Yes	-40 to 85 °C	Ultra-low power mode	48-pin TQFP	CP2400DK	256	128	36	SPI
CP2401-GM	Data Sheet Data Short	2	Yes	-40 to 85 °C	Ultra-low power mode	48-pin QFN	CP2401DK	256	128	36	I2C
CP2401-GQ	Data Sheet Data Short	2	Yes	-40 to 85 °C	Ultra-low power mode	48-pin TQFP	CP2401DK	256	128	36	I2C
CP2402-GM	Data Sheet Data Short	2	Yes	-40 to 85 °C	Ultra-low power mode	32-pin QFN	CP2400DK	256	64	20	SPI
CP2403-GM	Data Sheet Data Short	2	Yes	-40 to 85 °C	Ultra-low power mode	32-pin QFN	CP2401DK	256	64	20	I2C

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Interface

Title Content
CP240x LCD Controllers

Features

Applications