P87LPC767FD datasheet(29/60 Pages) PHILIPS

部件名	P87LPC767FD

功能描述	Low power, low price, low pin count 20 pin microcontroller with 4-kbyte OTP and 8-bit A/D converter

PDF	60 Pages

Scroll/Zoom	100%

制造商	PHILIPS [NXP Semiconductors]

网页	http://www.nxp.com

标志

29 / 60 page

Philips Semiconductors

Product data

87LPC767

Low power, low price, low pin count (20 pin)

microcontroller with 4-kbyte OTP and 8-bit A/D converter

2001 Aug 07

SU01357

87LPC767

QUARTZ CRYSTAL OR

CERAMIC RESONATOR

THE OSCILLATOR MUST BE CONFIGURED IN ONE OF

THE FOLLOWING MODES:

– LOW FREQUENCY CRYSTAL

– MEDIUM FREQUENCY CRYSTAL

– HIGH FREQUENCY CRYSTAL

CAPACITOR VALUES MAY BE OPTIMIZED FOR

DIFFERENT OSCILLATOR FREQUENCIES (SEE TEXT)

A SERIES RESISTOR MAY BE REQUIRED IN ORDER TO

LIMIT CRYSTAL DRIVE LEVELS. THIS IS PARTICULARLY

IMPORTANT FOR LOW FREQUENCY CRYSTALS (SEE TEXT).

Figure 18. Using the Crystal Oscillator

SU01358

87LPC767

THE OSCILLATOR MUST BE CONFIGURED IN

THE EXTERNAL CLOCK INPUT MODE.

A CLOCK OUTPUT MAY BE OBTAINED ON

THE X2 PIN BY SETTING THE ENCLK BIT IN

THE P2M1 REGISTER.

CMOS COMPATIBLE EXTERNAL

OSCILLATOR SIGNAL

Figure 19. Using an External Clock Input

P87LPC767FD 数据表(PDF) 29 Page - NXP Semiconductors