CP2400 SILABS [Silicon Laboratories], CP2400 Datasheet - Page 49

• Manufacturer Part Number: CP2400
• Description: 128/64 SEGMENT LCD DRIVER
• Manufacturer: SILABS [Silicon Laboratories]

9.
The CP2400/1/2/3 has four power modes that can be used to minimize overall system power consumption. The
power modes vary in device functionality and wake-up methods. Each of the following power modes is explained in
the following sections:





The power modes above are achieved by disabling specific primary functions of the CP2400/1/2/3. Figure 9.1
shows how power is distributed throughout the CP2400/1/2/3. Additional secondary functions may also be disabled
to save power. These are described in Section “9.8. Disabling Secondary Device Functions” on page 58.
Normal Mode (Device Fully Functional)
RAM Preservation Mode (Internal Oscillator Disabled)
Ultra Low Power LCD Mode (Regulator Disabled)
Ultra Low Power SmaRTClock Mode (Regulator Disabled, LCD Disabled)
Shut Down Mode (All functionality Disabled)
Power Modes
ULP Control
VDD
Logic
Figure 9.1. Power and Clock Distribution Control
Digital Logic
LDO
Host Interface
Rev. 1.0
Timers
SRAM
ULP
Active Port Match
Internal Oscillator
ULP Port Match
SmaRTClock
LCD Control
CP2400/1/2/3
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