lpc1759 NXP Semiconductors, lpc1759 Datasheet - Page 63

• Manufacturer Part Number: lpc1759
• Description: Lpc17xx Device Highlight
• Manufacturer: NXP Semiconductors

NXP Semiconductors
LPC1759_58_56_54_52_51_4
Product data sheet
Table 19.
Table 20.
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 32. 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
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XTALIN
C X1
LPC1xxx
Rev. 04.02 — 1 April 2010
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
LPC1759/58/56/54/52/51
/C
/C
L
L
X2
X2
in oscillation mode (crystal and external
in oscillation mode (crystal and external
Maximum crystal
series resistance R
< 300 Ω
< 300 Ω
< 300 Ω
< 300 Ω
< 200 Ω
< 100 Ω
< 160 Ω
< 60 Ω
< 80 Ω
Maximum crystal
series resistance R
< 180 Ω
< 100 Ω
< 160 Ω
< 80 Ω
32-bit ARM Cortex-M3 microcontroller
=
S
S
L
C L
R S
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
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© NXP B.V. 2010. All rights reserved.
C P
X1
X1
/C
,
63 of 74
CX2
X2