LPC2478FBD208,551 NXP Semiconductors, LPC2478FBD208,551 Datasheet - Page 45

IC ARM7 MCU 512K LCD 208-LQFP

LPC2478FBD208,551

Manufacturer Part Number
LPC2478FBD208,551
Description
IC ARM7 MCU 512K LCD 208-LQFP
Manufacturer
NXP Semiconductors
Series
LPC2400r
Datasheets

Specifications of LPC2478FBD208,551

Program Memory Type
FLASH
Program Memory Size
512KB (512K x 8)
Package / Case
208-LQFP
Core Processor
ARM7
Core Size
16/32-Bit
Speed
72MHz
Connectivity
CAN, EBI/EMI, Ethernet, I²C, Microwire, MMC, SPI, SSI, SSP, UART/USART, USB OTG
Peripherals
Brown-out Detect/Reset, DMA, I²S, LCD, POR, PWM, WDT
Number Of I /o
160
Ram Size
96K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
LPC24
Core
ARM7TDMI-S
Data Bus Width
16 bit, 32 bit
Data Ram Size
98 KB
Interface Type
CAN/I2C/I2S/IrDA/SPI/SSP/UART/USB
Maximum Clock Frequency
72 MHz
Number Of Programmable I/os
160
Number Of Timers
4
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2, DK-35TS-LPC2478, DK-57TS-LPC2478, DK-57VTS-LPC2478, SOMDIMM-LPC2478, SAB-TFBGA208, KSK-LPC2478-JL, MCB2470
Development Tools By Supplier
OM11015, OM11019, OM11022
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
On-chip Dac
1-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
622-1034 - PROGRAMMERS, DEVELOPMENT SYSTEMS622-1033 - KIT LCD TOUCH 5.7" FOR LPC2478MCB2470 - BOARD EVAL NXP LPC247X SERIESOM11022 - EVAL LPC-STICK WITH LPC2478OM11019 - BOARD EVAL FOR LPC2478568-4742 - MODULE DIMM LPC2478 ARM7568-4741 - KIT LCD TOUCH 5.7" FOR LPC2478622-1028 - KIT LCD TOUCH 5.7" FOR LPC2478KSDKLPC2478-PL - KIT IAR KICKSTART NXP LPC2478622-1024 - BOARD SCKT ADAPTER FOR TFBGA208568-4369 - BOARD EVAL FOR LPC2478622-1005 - USB IN-CIRCUIT PROG ARM7 LPC2K
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
568-4363
935284069551
LPC2478FBD208-S

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Company
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Manufacturer
Quantity
Price
Part Number:
LPC2478FBD208,551
Quantity:
9 999
Part Number:
LPC2478FBD208,551
Manufacturer:
NXP Semiconductors
Quantity:
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LPC2478FBD208,551
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NXP Semiconductors
LPC2478
Product data sheet
7.26.1.3 RTC oscillator
7.26.2 PLL
7.26.3 Wake-up timer
PLLCLKIN and CCLK are the same value unless the PLL is active and connected. The
clock frequency for each peripheral can be selected individually and is referred to as
PCLK. Refer to
The RTC oscillator can be used as the clock source for the RTC and/or the WDT. Also, the
RTC oscillator can be used to drive the PLL and the CPU.
The PLL accepts an input clock frequency in the range of 32 kHz to 25 MHz. The input
frequency is multiplied up to a high frequency, then divided down to provide the actual
clock used by the CPU and the USB block.
The PLL input, in the range of 32 kHz to 25 MHz, may initially be divided down by a value
‘N’, which may be in the range of 1 to 256. This input division provides a wide range of
output frequencies from the same input frequency.
Following the PLL input divider is the PLL multiplier. This can multiply the input divider
output through the use of a Current Controlled Oscillator (CCO) by a value ‘M’, in the
range of 1 through 32768. The resulting frequency must be in the range of 275 MHz to
550 MHz. The multiplier works by dividing the CCO output by the value of M, then using a
phase-frequency detector to compare the divided CCO output to the multiplier input. The
error value is used to adjust the CCO frequency.
The PLL is turned off and bypassed following a chip Reset and by entering Power-down
mode. PLL is enabled by software only. The program must configure and activate the PLL,
wait for the PLL to lock, then connect to the PLL as a clock source.
The LPC2478 begins operation at power-up and when awakened from Power-down and
Deep-power down modes by using the 4 MHz IRC oscillator as the clock source. This
allows chip operation to resume quickly. If the main oscillator or the PLL is needed by the
application, software will need to enable these features and wait for them to stabilize
before they are used as a clock source.
When the main oscillator is initially activated, the wake-up timer allows software to ensure
that the main oscillator is fully functional before the processor uses it as a clock source
and starts to execute instructions. This is important at power on, all types of Reset, and
whenever any of the aforementioned functions are turned off for any reason. Since the
oscillator and other functions are turned off during Power-down and Deep power-down
modes, any wake-up of the processor from Power-down modes makes use of the
Wake-up Timer.
The Wake-up Timer monitors the crystal oscillator to check whether it is safe to begin
code execution. When power is applied to the chip, or when some event caused the chip
to exit Power-down mode, some time is required for the oscillator to produce a signal of
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.
All information provided in this document is subject to legal disclaimers.
Section 7.26.2
Rev. 2 — 29 September 2010
DD(3V3)
ramp (in the case of power on), the type of crystal and its
for additional information.
Single-chip 16-bit/32-bit microcontroller
LPC2478
© NXP B.V. 2010. All rights reserved.
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