CP2401-GQ Silicon Laboratories Inc, CP2401-GQ Datasheet - Page 69

• Manufacturer Part Number: CP2401-GQ
• Description: IC LCD DRIVER 48TQFP
• Manufacturer: Silicon Laboratories Inc

Specifications of CP2401-GQ

• Package / Case: 48-TQFP, 48-VQFP
• Display Type: LCD
• Configuration: 128 Segment
• Interface: I²C, SMBus
• Current - Supply: 620µA
• Voltage - Supply: 1.8 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Data Ram Size: 256 B
• Interface Type: I2C, SMBus
• Maximum Clock Frequency: 25 MHz
• Number Of Timers: 2
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Digits Or Characters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1860

11. SmaRTClock (Real Time Clock)
CP2400/1/2/3 devices include an ultra low power 32-bit SmaRTClock Peripheral (Real Time Clock) with alarm. The
SmaRTClock has a dedicated 32 kHz oscillator that can be configured for use with or without a crystal. No external
resistor or loading capacitors are required. The on-chip loading capacitors are programmable to 16 discrete levels
allowing compatibility with a wide range of crystals.
The SmaRTClock allows a maximum of 36 hour 32-bit independent time-keeping when used with a 32.768 kHz
Watch Crystal. The SmaRTClock provides an Alarm and Missing SmaRTClock events, which could be used to
wake up from the ultra low power mode.
XTAL2
Registers
Programmable Load Capacitors
Internal
SmaRTClock State Machine
SmaRTClock Oscillator
Figure 11.1. SmaRTClock Block Diagram
CAPTUREn
RTC0XCN
RTC0XCF
ALARMn
RTC0CN
XTAL1
Interrupt
Rev. 1.0
RTC0ADR
RTC0KEY
RTC0DAT
Registers
Interface
SmaRTClock
SmaRTClock
32-Bit
Timer
CP2400/1/2/3
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