PIC16F684-I/P

4-Pin Flash-Based, 8-Bit CMOS Microcontrollers tv circuit board components

DEVICE OVERVIEW

This document contains device specific information for the PIC16F684. Additional information may be found in the “PICmicro® Mid-Range MCU Family Reference Manual” (DS33023), which may be obtained from your local Microchip Sales Representative or downloaded from the Microchip web site.

The reference manual should be considered a complementary document to this data sheet and is highly recommended reading for a better understanding of the device architecture and operation of the peripheral modules.

The PIC16F684 is covered by this data sheet. It is available in 14-pin PDIP, SOIC and TSSOP packages. Figure 1-1 shows a block diagram of the PIC16F684 device. Table 1-1 shows the pinout description.

The LP, XT and HS modes support the use of quartz crystal resonators or ceramic resonators connected to the OSC1 and OSC2 pins (Figure 3-1). The mode selects a low, medium or high gain setting of the internal inverter-amplifier to support various resonator types and speed

LP Oscillator mode selects the lowest gain setting of the internal inverter-amplifier. LP mode current consumption is the least of the three modes. This mode is best suited to drive resonators with a low drive level specification, for example, tuning fork type crystals

XT Oscillator mode selects the intermediate gain setting of the internal inverter-amplifier. XT mode current consumption is the medium of the three modes. This mode is best suited to drive resonators with a medium drive level specification, for example, low-frequency/AT-cut quartz crystal resonators.