P87LPC764FD datasheet(24/60 Pages) PHILIPS

Part #	P87LPC764FD

Description	Low power, low price, low pin count (20 pin) microcontroller with 4 kbyte OTP

PDF	60 Pages

Scroll/Zoom	100%

Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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24 / 60 page

Philips Semiconductors

Product data

P87LPC764

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

microcontroller with 4 kbyte OTP

2003 Sep 03

SU01165

87LPC764

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 16. Using the Crystal Oscillator

SU01166

87LPC764

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 17. Using an External Clock Input

P87LPC764FD Datasheet(PDF) 24 Page - NXP Semiconductors