LPC1343FHN33 NXP Semiconductors, LPC1343FHN33 Datasheet - Page 60
![The LPC1343FHN33 is a ARM Cortex-M3 based microcontroller for embedded applications featuring a high level of integration and low power consumption](/photos/41/52/415284/sot865-3_3d_sml.gif)
LPC1343FHN33
Manufacturer Part Number
LPC1343FHN33
Description
The LPC1343FHN33 is a ARM Cortex-M3 based microcontroller for embedded applications featuring a high level of integration and low power consumption
Manufacturer
NXP Semiconductors
Datasheet
1.LPC1311FHN33.pdf
(73 pages)
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NXP Semiconductors
LPC1311_13_42_43
Product data sheet
11.3 XTAL Printed-Circuit Board (PCB) layout guidelines
Table 21.
Table 22.
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
order to keep the noise coupled in via the PCB as small as possible. Also parasitics
should stay as small as possible. Values of C
accordingly to the increase in parasitics of the PCB layout.
Fundamental oscillation
frequency F
1 MHz - 5 MHz
Fundamental oscillation
frequency F
15 MHz - 20 MHz
5 MHz - 10 MHz
10 MHz - 15 MHz
15 MHz - 20 MHz
20 MHz - 25 MHz
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.
Rev. 4 — 20 June 2011
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
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
x1
and C
32-bit ARM Cortex-M3 microcontroller
LPC1311/13/42/43
x2
should be chosen smaller
x1
S
S
, C
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
, and C
© NXP B.V. 2011. All rights reserved.
x3
in case of
X1
X1
, C
, C
60 of 73
X2
X2