PIC16LC773-04SLASHSP datasheet(130/200 Pages) MICROCHIP

Part #	PIC16LC773-04/SP

Description	28/40-Pin, 8-Bit CMOS Microcontrollers w/ 12-Bit A/D

PDF	200 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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130 / 200 page

PIC16C77X

DS30275A-page 130

Advance Information

12.2.3

RC OSCILLATOR

For timing insensitive applications the “RC” device

option offers additional cost savings. The RC oscillator

frequency is a function of the supply voltage, the resis-

tor (REXT) and capacitor (CEXT) values, and the operat-

ing temperature. In addition to this, the oscillator

frequency will vary from unit to unit due to normal pro-

cess parameter variation. Furthermore, the difference

in lead frame capacitance between package types will

also affect the oscillation frequency, especially for low

CEXT values. These factors and the variation due to tol-

erances of external R and C components used need to

be taken into account for each application. Figure 12-4

shows how the R/C combination is connected to the

PIC16C77X.

FIGURE 12-4: RC OSCILLATOR MODE

OSC2/CLKOUT

Cext

Rext

PIC16C77X

OSC1

Fosc/4

Internal

clock

VDD

VSS

PIC16LC773-04/SP Datasheet(PDF) 130 Page - Microchip Technology