资料介绍
This technical brief discusses the interfacing and char-
acterization of the Micro Crystal MS1V-T1K 32.768 kHz
tuning fork (watch) crystal with the PIC16F690 PIC
®
microcontroller Timer1 low-power oscillator. This infor-
mation can be used to assist the designer in interfacing
32.768 kHz tuning fork crystal to the PIC16F690 MCU.
The information in this technical brief is intended as a
design suggestion. The designer should verify proper
operation for their particular application. TB097
Interfacing a Micro Crystal MS1V-T1K
32.768 kHz Tuning Fork Crystal to a PIC16F690/SS
Author: Steven Bible
SCHEMATIC DIAGRAM
Microchip Technology Inc. The schematic for the circuit is shown in Figure 1. The
Stéphane De Boni tuning fork crystal resonator is connected to the
Micro Crystal PIC16F690 OSC1 and OSC2 pins. Capacitors CD and
CG are the load capacitors and resistor RD is the
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