LPC3152FET208,551 NXP Semiconductors, LPC3152FET208,551 Datasheet - Page 47

• Manufacturer Part Number: LPC3152FET208,551
• Description: IC ARM9 MCU USB OTG 208TFBGA
• Manufacturer: NXP Semiconductors
• Series: LPC3000r

Specifications of LPC3152FET208,551

• Package / Case: 208-TFBGA
• Core Processor: ARM9
• Core Size: 32-Bit
• Speed: 180MHz
• Connectivity: EBI/EMI, I²C, IrDA, MMC, PCM, SPI, UART/USART, USB OTG
• Peripherals: DMA, I²S, LCD, PWM, WDT
• Number Of I /o: 10
• Program Memory Type: ROMless
• Ram Size: 192K x 8
• Voltage - Supply (vcc/vdd): 1.1 V ~ 3.6 V
• Data Converters: A/D 3x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Processor Series: LPC31
• Core: ARM926EJS
• Data Bus Width: 32 bit
• Data Ram Size: 192 KB
• Interface Type: I2C, I2S, SPI, UART
• Maximum Clock Frequency: 180 MHz
• Number Of Timers: 5
• Operating Supply Voltage: 1.2 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: OM11029
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 935287561551

NXP Semiconductors
LPC3152_3154
Preliminary data sheet
7.6 Real-Time Clock (RTC)
The Real-Time Clock module keeps track of the actual date and time, also when the
system is switched off. Advanced Digital Rights Management (DRM) schemes require a
secure and accurate real-time clock for managing rights such as time-limited playback
rights.
This module has the following features:
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Provides ‘Supply_OK’ detection connected to the system reset signal.
Normal power supply directly from Li-ion battery (PSU is by-passed).
Backup power supply from (external) capacitor.
Automatic switching between normal power supply and backup power supply.
Signals power loss to indicate invalid real time clock readings.
Runs on a 32 kHz oscillator.
Ultra-low power consumption.
The clock is implemented as a 32-bit counter at the rate of 1 Hz (derived from the 32
kHz clock).
Alarm timer that can generate an interrupt. This interrupt is available both as an
internal signal as well as a signal on an external pin.
The external interrupt (RTC_INT) can be used to switch on the system by switching
on the PSU through the PSU_PLAY pin.
The internal interrupt signal can be used to wake-up the system from suspend mode
through the event router.
Dedicated permanent supply domain.
All information provided in this document is subject to legal disclaimers.
Rev. 0.12 — 27 May 2010
LPC3152/3154
© NXP B.V. 2010. All rights reserved.
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