LPC2378FBD144 NXP Semiconductors, LPC2378FBD144 Datasheet - Page 33

MCU 32BIT ARM7, 10/100, USB, CAN

LPC2378FBD144

Manufacturer Part Number
LPC2378FBD144
Description
MCU 32BIT ARM7, 10/100, USB, CAN
Manufacturer
NXP Semiconductors
Datasheet

Specifications of LPC2378FBD144

Core Size
32bit
No. Of I/o's
104
Program Memory Size
512KB
Ram Memory Size
58KB
Cpu Speed
72MHz
Oscillator Type
External, Internal
No. Of Timers
4
No. Of Pwm Channels
6
Digital Ic Case
RoHS Compliant
Controller Family/series
LPC23xx
Rohs Compliant
Yes

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LPC2378FBD144
Manufacturer:
ST
Quantity:
43
Part Number:
LPC2378FBD144
Manufacturer:
NXP
Quantity:
5 000
Part Number:
LPC2378FBD144
0
Part Number:
LPC2378FBD144,551
Quantity:
9 999
Part Number:
LPC2378FBD144,551
Manufacturer:
ADI
Quantity:
2 397
Part Number:
LPC2378FBD144,551
Manufacturer:
NXP Semiconductors
Quantity:
10 000
Part Number:
LPC2378FBD144,551
Manufacturer:
NXP
Quantity:
420
Part Number:
LPC2378FBD144,551
Manufacturer:
NXP
Quantity:
420
Part Number:
LPC2378FBD144K
0
NXP Semiconductors
LPC2377_78
Product data sheet
7.25.4.1 Idle mode
7.25.4.2 Sleep mode
7.25.4 Power control
sufficient amplitude to drive the clock logic. The amount of time depends on many factors,
including the rate of V
electrical characteristics (if a quartz crystal is used), as well as any other external circuitry
(e.g., capacitors), and the characteristics of the oscillator itself under the existing ambient
conditions.
The LPC2377/78 support a variety of power control features. There are four special
modes of processor power reduction: Idle mode, Sleep mode, Power-down mode, and
Deep power-down mode. The CPU clock rate may also be controlled as needed by
changing clock sources, reconfiguring PLL values, and/or altering the CPU clock divider
value. This allows a trade-off of power versus processing speed based on application
requirements. In addition, Peripheral Power Control allows shutting down the clocks to
individual on-chip peripherals, allowing fine tuning of power consumption by eliminating all
dynamic power use in any peripherals that are not required for the application. Each of the
peripherals has its own clock divider which provides even better power control.
The LPC2377/78 also implement a separate power domain in order to allow turning off
power to the bulk of the device while maintaining operation of the RTC and a small SRAM,
referred to as the battery RAM.
In Idle mode, execution of instructions is suspended until either a Reset or interrupt
occurs. Peripheral functions continue operation during Idle mode and may generate
interrupts to cause the processor to resume execution. Idle mode eliminates dynamic
power used by the processor itself, memory systems and related controllers, and internal
buses.
In Sleep mode, the oscillator is shut down and the chip receives no internal clocks. The
processor state and registers, peripheral registers, and internal SRAM values are
preserved throughout Sleep mode and the logic levels of chip pins remain static. The
output of the IRC is disabled but the IRC is not powered down for a fast wake-up later. The
32 kHz RTC oscillator is not stopped because the RTC interrupts may be used as the
wake-up source. The PLL is automatically turned off and disconnected. The CCLK and
USB clock dividers automatically get reset to zero.
The Sleep mode can be terminated and normal operation resumed by either a Reset or
certain specific interrupts that are able to function without clocks. Since all dynamic
operation of the chip is suspended, Sleep mode reduces chip power consumption to a
very low value. The flash memory is left on in Sleep mode, allowing a very quick wake-up.
On the wake-up of Sleep mode, if the IRC was used before entering Sleep mode, the
code execution and peripherals activities will resume after 4 cycles expire. If the main
external oscillator was used, the code execution will resume when 4096 cycles expire.
The customers need to reconfigure the PLL and clock dividers accordingly.
All information provided in this document is subject to legal disclaimers.
DD(3V3)
Rev. 5 — 17 June 2010
ramp (in the case of power on), the type of crystal and its
Single-chip 16-bit/32-bit microcontrollers
LPC2377/78
© NXP B.V. 2010. All rights reserved.
33 of 68

Related parts for LPC2378FBD144