LPC1787FBD208,551 NXP Semiconductors, LPC1787FBD208,551 Datasheet - Page 102
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LPC1787FBD208,551
Manufacturer Part Number
LPC1787FBD208,551
Description
IC MCU 32BIT 512KB FLASH 208LQFP
Manufacturer
NXP Semiconductors
Series
LPC17xxr
Datasheet
1.LPC1774FBD208551.pdf
(117 pages)
Specifications of LPC1787FBD208,551
Core Processor
ARM® Cortex-M3™
Core Size
32-Bit
Speed
120MHz
Connectivity
CAN, EBI/EMI, I²C, Microwire, MMC, SPI, SSI, SSP, UART/USART, USB OTG
Peripherals
Brown-out Detect/Reset, DMA, I²S, LCD, Motor Control PWM, POR, PWM, WDT
Number Of I /o
165
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
96K x 8
Voltage - Supply (vcc/vdd)
2.4 V ~ 3.6 V
Data Converters
A/D 8x12b, D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
208-LQFP
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
568-7575
LPC1787FBD208,551
LPC1787FBD208,551
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC1787FBD208,551
Manufacturer:
NXP Semiconductors
Quantity:
10 000
NXP Semiconductors
LPC178X_7X
Objective data sheet
14.3 XTAL Printed-Circuit Board (PCB) layout guidelines
Table 32.
Table 33.
The crystal should be connected on the PCB as close as possible to the oscillator input
and output pins of the chip. Take care that the load capacitors C
third overtone crystal usage have a common ground plane. The external components
must also be connected to the ground plain. Loops must be made as small as possible in
Fundamental oscillation
frequency F
5 MHz - 10 MHz
10 MHz - 15 MHz
15 MHz - 20 MHz
Fundamental oscillation
frequency F
15 MHz - 20 MHz
20 MHz - 25 MHz
1 MHz - 5 MHz
Fig 39. Oscillator modes and models: oscillation mode of operation and external crystal
model used for C
Recommended values for C
components parameters): low frequency mode
Recommended values for C
components parameters): high frequency mode
OSC
OSC
All information provided in this document is subject to legal disclaimers.
XTALIN
C X1
LPC1xxx
Rev. 2 — 27 May 2011
XTAL
X1
Crystal load
capacitance C
10 pF
20 pF
30 pF
10 pF
20 pF
30 pF
10 pF
20 pF
10 pF
Crystal load
capacitance C
10 pF
20 pF
10 pF
20 pF
/C
X2
XTALOUT
evaluation
C X2
X1
X1
/C
/C
L
L
X2
X2
in oscillation mode (crystal and external
in oscillation mode (crystal and external
Maximum crystal
series resistance R
< 300
< 300
< 300
< 300
< 200
< 100
< 160
< 60
< 80
Maximum crystal
series resistance R
< 180
< 100
< 160
< 80
32-bit ARM Cortex-M3 microcontroller
=
x1
S
S
LPC178x/7x
, C
L
C L
R S
x2
External load
capacitors C
18 pF, 18 pF
39 pF, 39 pF
57 pF, 57 pF
18 pF, 18 pF
39 pF, 39 pF
57 pF, 57 pF
18 pF, 18 pF
39 pF, 39 pF
18 pF, 18 pF
External load
capacitors C
18 pF, 18 pF
39 pF, 39 pF
18 pF, 18 pF
39 pF, 39 pF
002aaf424
, and C
© NXP B.V. 2011. All rights reserved.
C P
x3
in case of
X1
X1
102 of 117
/C
,
CX2
X2