IC PIC16F818
This document contains device specific information for the operation of the PIC16F818/819 devices. 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.
Internal RC oscillator with eight selectable frequencies, including 31.25 kHz, 125 kHz, 250 kHz, 500 kHz, 1 MHz, 2 MHz, 4 MHz and 8 MHz. The INTRC can be configured as the system clock via the configuration bits. Refer to Section 4.5 “Internal Oscillator Block” and Section 12.1 “Configuration Bits” for further details.
The
Timer1 module current consumption has been greatly reduced from 20 µA (previous PIC16 devices) to 1.8 µA typical (32 kHz at 2V), which is ideal for real-time clock applications. Refer to Section 6.0 “Timer0 Module” for further details.
Diagram Block Z86E33
The amount of oscillator selections has increased. The RC and INTRC modes can be selected with an I/O pin configured as an I/O or a clock output (FOSC/4). An external clock can be configured with an I/O pin. Refer to Section 4.0 “Oscillator Configurations” for further details.