LPC2131 datasheet(37/45 Pages) PHILIPS

номер детали	LPC2131

подробное описание детали	Single-chip 16/32-bit microcontrollers; 32/64/128/256/512 kB ISP/IAP flash with 10-bit ADC and DAC

PDF	45 Pages

Scroll/Zoom	100%

производитель	PHILIPS [NXP Semiconductors]

домашняя страница	http://www.nxp.com

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37 / 45 page

LPC2131_32_34_36_38

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5.1 — 29 July 2011

37 of 45

NXP Semiconductors

LPC2131/32/34/36/38

Single-chip 16/32-bit microcontrollers

Fig 14. Oscillator modes and models: oscillation mode of operation and external crystal

model used for CX1/CX2 evaluation

Table 10.

Recommended values for CX1/CX2 in oscillation mode (crystal and external

components parameters): low frequency mode

Fundamental oscillation

frequency FOSC

Crystal load

capacitance CL

Maximum crystal

series resistance RS

External load

capacitors CX1/CX2

1 MHz to 5 MHz

10 pF

< 300



18 pF, 18 pF

20 pF

< 300



39 pF, 39 pF

30 pF

< 300



57 pF, 57 pF

5 MHz to 10 MHz

10 pF

< 300



18 pF, 18 pF

20 pF

< 200



39 pF, 39 pF

30 pF

< 100



57 pF, 57 pF

10 MHz to 15 MHz

10 pF

< 160



18 pF, 18 pF

20 pF

< 60



39 pF, 39 pF

15 MHz to 20 MHz

10 pF

< 80



18 pF, 18 pF

Table 11.

Recommended values for CX1/CX2 in oscillation mode (crystal and external

components parameters): high frequency mode

Fundamental oscillation

frequency FOSC

Crystal load

capacitance CL

Maximum crystal

series resistance RS

External load

capacitors CX1, CX2

15 MHz to 20 MHz

10 pF

< 180



18 pF, 18 pF

20 pF

< 100



39 pF, 39 pF

20 MHz to 25 MHz

10 pF

< 160



18 pF, 18 pF

20 pF

< 80



39 pF, 39 pF

002aag469

LPC2xxx

XTAL1

XTAL2

CX2

CX1

XTAL

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