CP2400-GQ Datasheet, PDF (1/110 Pages) Silicon Laboratories – 128/64 SEGMENT LCD DRIVER

CP2400/1/2/3
128/64 SEGMENT LCD DRIVER
LCD Driver
Controls up to 128 segments (48-pin packages) or
64 segments (32-pin package)
Supports static, 2-mux, 3-mux, and 4-mux displays
On-chip bias generation with internal charge pump
Low power blink capability
GPIO Expander
Expands GPIO count by up to 36 pins (48-pin packages)
or 20 pins (32-pin package)
GPIO pins may be configured to push-pull or open-drain
outputs with two drive levels. GPIO may also be used as
digital inputs (CP2400/1/2/3 pullups included)
Port Match Capability can wake up host controller using
interrupt pin
5 V Tolerant I/O
Real Time Clock, SmaRTClock
Precision time keeping with 32.768 kHz watch crystal;
self-oscillate mode requires no external crystal; accepts
external 32 kHz CMOS clock
36-hour programmable counter with wake up alarm
Can wake up the host controller using interrupt pin
Low power (<1.5 µA)
256 Bytes RAM
General purpose RAM expands the memory available to
host controller.
16-bit Timers
Two general purpose 16-bit timers
Clock Sources
20 MHz Internal oscillator
Can be clocked from an external CMOS clock
Digital Bus Interface
4-wire SPI Interface operates up to 2.5 Mbps with
synchronous external clock or up to 1 Mbps with internal
clock (CP2400/2 only).
2-wire SMBus/I²C Interface operates up to 400 kHz with
internal clock (CP2401/3 only).
Dedicated RST and INT pins.
Optional CLK pin can be used as a CMOS clock input.
Optional PWR pin (SMBus/I²C devices only) places the
device in a low power mode. SPI devices use the NSS
pin to place the device in a low power mode.
Low Power
1.8–3.6 V operation with integrated LDO
Ultra Low Power Mode w/ LCD (<3 µA typical)
Shutdown current (0.05 µA typical)
Example Applications
Handheld Equipment
Utility Meters
Thermostat Display
Home Security Systems
Packages
Pb-free 48-pin QFP (9x9 mm footprint) [-Q]
Pb-free 48-pin QFN (7x7 mm footprint) [-M]
Pb-free 32-pin QFN (5x5 mm footprint)
Ordering Part Numbers
CP2400-G[M|Q] (SPI Interface)
CP2401-G[M|Q] (SMBus/I²C Interface)
CP2402-GM (SPI Interface)
CP2403-GM (SMBus/I²C Interface)
Temperature Range: –40 to +85 °C
Host
Controller
CP2400/1/2/3
Host
Interface
SPI
(CP2400/2)
OR
SMBus/I2C
(CP2401/3)
20 MHz
Internal
Oscillator
2 x 16-bit
Timers
256 Byte
SRAM
smaRTClock
GPIO Expander
LCD Controller
Optional
32.768 kHz
Digital I/O
LCD
Rev. 1.0 8/10
Copyright © 2010 by Silicon Laboratories
CP2400/1/2/3