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CP2400 Datasheet, PDF (1/110 Pages) Silicon Laboratories – 128/64 SEGMENT LCD DRIVER | |||
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CP2400/1/2/3
128/64 SEGMENT LCD DRIVER
LCD Driver
ï¬ï Controls up to 128 segments (48-pin packages) or
64 segments (32-pin package)
ï¬ï Supports static, 2-mux, 3-mux, and 4-mux displays
ï¬ï On-chip bias generation with internal charge pump
ï¬ï Low power blink capability
GPIO Expander
ï¬ï Expands GPIO count by up to 36 pins (48-pin packages)
or 20 pins (32-pin package)
ï¬ï 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)
ï¬ï Port Match Capability can wake up host controller using
interrupt pin
ï¬ï 5 V Tolerant I/O
Real Time Clock, SmaRTClock
ï¬ï Precision time keeping with 32.768 kHz watch crystal;
self-oscillate mode requires no external crystal; accepts
external 32 kHz CMOS clock
ï¬ï 36-hour programmable counter with wake up alarm
ï¬ï Can wake up the host controller using interrupt pin
ï¬ï Low power (<1.5 µA)
256 Bytes RAM
ï¬ï General purpose RAM expands the memory available to
host controller.
16-bit Timers
ï¬ï Two general purpose 16-bit timers
Clock Sources
ï¬ï 20 MHz Internal oscillator
ï¬ï Can be clocked from an external CMOS clock
Digital Bus Interface
ï¬ï 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).
ï¬ï 2-wire SMBus/I2C Interface operates up to 400 kHz with
internal clock (CP2401/3 only).
ï¬ï Dedicated RST and INT pins.
ï¬ï Optional CLK pin can be used as a CMOS clock input.
ï¬ï 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
ï¬ï 1.8â3.6 V operation with integrated LDO
ï¬ï Ultra Low Power Mode w/ LCD (<3 µA typical)
ï¬ï Shutdown current (0.05 µA typical)
Example Applications
ï¬ï Handheld Equipment
ï¬ï Utility Meters
ï¬ï Thermostat Display
ï¬ï Home Security Systems
Packages
ï¬ï Pb-free 48-pin QFP (9x9 mm footprint) [-Q]
ï¬ï Pb-free 48-pin QFN (7x7 mm footprint) [-M]
ï¬ï Pb-free 32-pin QFN (5x5 mm footprint)
Ordering Part Numbers
ï¬ï CP2400-G[M|Q] (SPI Interface)
ï¬ï CP2401-G[M|Q] (SMBus/I2C Interface)
ï¬ï CP2402-GM (SPI Interface)
ï¬ï CP2403-GM (SMBus/I2C Interface)
Temperature Range: â40 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
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