LPC2470FBD208,551 NXP Semiconductors, LPC2470FBD208,551 Datasheet - Page 46
![IC ARM7 MCU LCD 208-LQFP](/photos/12/13/121391/208-lqfp_sot459-1_pkg_sml.jpg)
LPC2470FBD208,551
Manufacturer Part Number
LPC2470FBD208,551
Description
IC ARM7 MCU LCD 208-LQFP
Manufacturer
NXP Semiconductors
Series
LPC2400r
Datasheets
1.OM11077.pdf
(792 pages)
2.LPC2470FET208551.pdf
(89 pages)
3.LPC2470FET208551.pdf
(91 pages)
Specifications of LPC2470FBD208,551
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
Program Memory Type
ROMless
Ram Size
98K 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/SPI/SSP/UART/USB
Maximum Clock Frequency
72 MHz
Number Of Programmable I/os
160
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2, MCB2470U
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
On-chip Dac
1-ch x 10-bit
Package
208LQFP
Device Core
ARM7TDMI-S
Family Name
LPC2000
Maximum Speed
72 MHz
Operating Supply Voltage
3.3 V
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
568-4361-5
935284068551
LPC2470FBD208-S
935284068551
LPC2470FBD208-S
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC2470FBD208,551
Manufacturer:
NXP Semiconductors
Quantity:
10 000
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NXP Semiconductors
UM10237_4
User manual
3.1.1 Clock Source Select register (CLKSRCSEL - 0xE01F C10C)
3.1 Clock source selection multiplexer
3.2 PLL (Phase Locked Loop)
Table 41.
[1]
Several clock sources may be chosen to drive the PLL and ultimately the CPU and
on-chip peripheral devices. The clock sources available are the main oscillator, the RTC
oscillator, and the Internal RC (IRC) oscillator.
The clock source selection can only be changed safely when the PLL is not connected.
For a detailed description of how to change the clock source in a system using the PLL
see
Note the following restrictions regarding the choice of clock sources:
The PCLKSRCSEL register contains the bits that select the clock source for the PLL.
Table 42.
The PLL accepts an input clock frequency in the range of 32 kHz to 24 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.
Name
PCON
INTWAKE
PCONP
Bit Symbol
1:0 CLKSRC
7:2 -
•
•
Reset Value reflects the data stored in used bits only. It does not include reserved bits content.
The IRC oscillator cannot be used as clock source for the USB block.
The IRC oscillator cannot be used as clock source for the CAN controllers if the CAN
baud rate is larger than 100 kbit/s.
Section 4–3.2.14 “PLL setup
Summary of system control registers
Clock Source Select register (CLKSRCSEL - address 0xE01F C10C) bit
description
Description
Power Control Register
Interrupt Wakeup Register
Power Control for Peripherals Register
Value Description
00
01
10
11
Warning: Improper setting of this value, or an incorrect sequence of
changing this value may result in incorrect operation of the device.
0
Rev. 04 — 26 August 2009
Selects the clock source for the PLL as follows:
Selects the Internal RC oscillator as the PLL clock source
(default).
Selects the main oscillator as the PLL clock source.
Selects the RTC oscillator as the PLL clock source.
Reserved, user software should not write ones to reserved bits.
The value read from a reserved bit is not defined.
Unused, always 0.
sequence”.
Chapter 4: LPC24XX Clocking and power control
R/W
R/W
Access
R/W
Reset
value
0
0
0x03BE
[1]
UM10237
© NXP B.V. 2009. All rights reserved.
Address
0xE01F C0C0
0xE01F C144
0xE01F C0C4
46 of 792
Reset
value
0
0
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