LPC2470FBD208,551 NXP Semiconductors, LPC2470FBD208,551 Datasheet - Page 54
![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
- Current page: 54 of 792
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NXP Semiconductors
UM10237_4
User manual
3.2.12 Procedure for determining PLL settings
M = (F
N = (2 × M × F
F
Allowed values for M:
At higher oscillator frequencies, in the MHz range, values of M from 6 through 512 are
allowed. This supports the entire useful range of both the main oscillator and the IRC.
For lower frequencies, specifically when the RTC is used to clock the PLL, a set of 65
additional M values have been selected for supporting baud rate generation, CAN/USB
operation, and attaining even MHz frequencies. These values are shown in
Table 51.
PLL parameter determination can be simplified by using a spreadsheet available from
NXP. To determine PLL parameters by hand, the following general procedure may be
used:
1. Determine if the application requires use of the USB interface. The USB requires a
2. Choose the desired processor operating frequency (cclk). This may be based on
IN
= (F
50% duty cycle clock of 48 MHz within a very small tolerance, which means that F
must be an even integer multiple of 48 MHz (i.e. an integer multiple of 96 MHz), within
a very small tolerance.
processor throughput requirements, need to support a specific set of UART baud
rates, etc. Bear in mind that peripheral devices may be running from a lower clock
frequency than that of the processor (see
and
a multiple of the desired cclk frequency, bearing in mind the requirement for USB
support in [1] above, and that lower values of F
12085
13733
15381
16479
19775
21973
4272
5127
6042
6750
7324
8057
9613
CCO
CCO
Section 4–3.4 “Power control” on page
Additional Multiplier Values for use with a Low Frequency Clock Input
× N) / (2 × F
× N) / (2 × M)
IN
) / F
CCO
Rev. 04 — 26 August 2009
IN
10254
12207
13916
15564
17578
20508
23071
4395
5188
6075
6836
7425
8100
)
Low Frequency PLL Multipliers
Chapter 4: LPC24XX Clocking and power control
10376
12817
14099
15625
18127
20599
23438
4578
5400
6104
6866
7690
8545
Section 4–3.3 “Clock dividers” on page 57
60). Find a value for F
CCO
result in lower power dissipation.
10986
13184
14420
15869
20874
23804
18311
4725
5493
6409
6958
7813
8789
UM10237
CCO
© NXP B.V. 2009. All rights reserved.
that is close to
Table 4–51
11719
13672
14648
16113
19226
21149
24170
4807
5859
6592
7050
7935
9155
54 of 792
CCO
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