LPC11U23FBD48 NXP Semiconductors, LPC11U23FBD48 Datasheet - Page 52

• Manufacturer Part Number: LPC11U23FBD48
• Description: The LPC11U23FBD48 is a ARM Cortex-M0 based, low-cost 32-bit MCU, designed for 8/16-bit microcontroller applications, offering performance, low power, simple instruction set and memory addressing together with reduced code size compared to existing 8/
• Manufacturer: NXP Semiconductors

NXP Semiconductors
LPC11U2X
Product data sheet
In slave mode, couple the input clock signal with a capacitor of 100 pF
amplitude between 200 mV (RMS) and 1000 mV (RMS). This signal corresponds to a
square wave signal with a signal swing of between 280 mV and 1.4 V. The XTALOUT pin
in this configuration can be left unconnected.
External components and models used in oscillation mode are shown in
Table 17
and the capacitances C
fundamental mode oscillation (L, C
Capacitance C
larger than 7 pF. Parameters F
manufacturer.
Table 17.
Fundamental oscillation
frequency F
1 MHz - 5 MHz
Fig 28. Slave mode operation of the on-chip oscillator
Fig 29. Oscillator modes and models: oscillation mode of operation and external crystal
and
model used for C
Recommended values for C
components parameters) low frequency mode
OSC
Table
P
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in
XTALIN
Figure 29
C X1
18. Since the feedback resistance is integrated on chip, only a crystal
LPC1xxx
Rev. 2 — 13 January 2012
X1
XTAL
X1
and C
Crystal load
capacitance C
10 pF
20 pF
30 pF
/C
represents the parallel package capacitance and must not be
X2
OSC
XTALOUT
X2
evaluation
C X2
, C
L
need to be connected externally in case of
and R
L
X1
, R
XTALIN
LPC1xxx
C i
100 pF
/C
L
S
X2
S
and C
in oscillation mode (crystal and external
represent the fundamental frequency).
Maximum crystal
series resistance R
< 300 
< 300 
< 300 
002aae788
32-bit ARM Cortex-M0 microcontroller
P
C g
are supplied by the crystal
=
S
L
C L
R S
LPC11U2x
External load
capacitors C
18 pF, 18 pF
39 pF, 39 pF
57 pF, 57 pF
002aaf424
(Figure
© NXP B.V. 2012. All rights reserved.
C P
Figure 29
28), with an
X1
, C
and in
52 of 70
X2