LPC11E14FHN33/401, NXP Semiconductors, LPC11E14FHN33/401, Datasheet - Page 23

• Manufacturer Part Number: LPC11E14FHN33/401,
• Description: ARM Microcontrollers - MCU 32kB 4kB EE 10kB SRAM
• Manufacturer: NXP Semiconductors

Specifications of LPC11E14FHN33/401,

• Rohs: yes
• Core: ARM Cortex M0
• Processor Series: LPC11E1x
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 32 KB
• Data Ram Size: 4 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3.3 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: HVQFN-33
• Mounting Style: SMD/SMT
• Factory Pack Quantity: 260

NXP Semiconductors
LPC11E1X
Product data sheet
7.16.5.2 Sleep mode
7.16.5.3 Deep-sleep mode
7.16.5.4 Power-down mode
7.16.5.5 Deep power-down mode
When Sleep mode is entered, the clock to the core is stopped. Resumption from the Sleep
mode does not need any special sequence but re-enabling the clock to the ARM core.
In Sleep mode, execution of instructions is suspended until either a reset or interrupt
occurs. Peripheral functions continue operation during Sleep mode and can generate
interrupts to cause the processor to resume execution. Sleep mode eliminates dynamic
power used by the processor itself, by memory systems and related controllers, and by
internal buses.
In Deep-sleep mode, the LPC11E1x is in Sleep-mode and all peripheral clocks and all
clock sources are off except for the IRC. The IRC output is disabled unless the IRC is
selected as input to the watchdog timer. In addition all analog blocks are shut down and
the flash is in stand-by mode. In Deep-sleep mode, the application can keep the watchdog
oscillator and the BOD circuit running for self-timed wake-up and BOD protection.
The LPC11E1x can wake up from Deep-sleep mode via reset, selected GPIO pins, or a
watchdog timer interrupt.
Deep-sleep mode saves power and allows for short wake-up times.
In Power-down mode, the LPC11E1x is in Sleep-mode and all peripheral clocks and all
clock sources are off except for watchdog oscillator if selected. In addition all analog
blocks and the flash are shut down. In Power-down mode, the application can keep the
BOD circuit running for BOD protection.
The LPC11E1x can wake up from Power-down mode via reset, selected GPIO pins, or a
watchdog timer interrupt.
Power-down mode reduces power consumption compared to Deep-sleep mode at the
expense of longer wake-up times.
In Deep power-down mode, power is shut off to the entire chip except for the WAKEUP
pin. The LPC11E1x can wake up from Deep power-down mode via the WAKEUP pin.
The LPC11E1x can be prevented from entering Deep power-down mode by setting a lock
bit in the PMU block. Locking out Deep power-down mode enables the application to keep
the watchdog timer or the BOD running at all times.
When entering Deep power-down mode, an external pull-up resistor is required on the
WAKEUP pin to hold it HIGH. Pull the RESET pin HIGH to prevent it from floating while in
Deep power-down mode.
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 20 February 2012
32-bit ARM Cortex-M0 microcontroller
LPC11E1x
© NXP B.V. 2012. All rights reserved.
23 of 61