Table 26–583, Gives t, Nxp semiconductors – NXP Semiconductors LPC24XX UM10237 User Manual
Page 661
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UM10237_4
© NXP B.V. 2009. All rights reserved.
User manual
Rev. 04 — 26 August 2009
661 of 792
NXP Semiconductors
UM10237
Chapter 26: LPC24XX Real-Time Clock (RTC) and battery RAM
Table 583. Recommended values for the RTC external 32 kHz oscillator C
X1/X2
components
Crystal load capacitance
C
L
Maximum crystal series
resistance R
S
External load capacitors C
X1
,
CX2
11 pF
< 100 k
Ω
18 pF, 18 pF
13 pF
< 100 k
Ω
22 pF, 22 pF
15 pF
< 100 k
Ω
27 pF, 27 pF
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