DEVICE OVERVIEW
This document contains device specific information for the following two devices:

1. PIC18C601
2. PIC18C801

The PIC18C601 is available in 64-pin TQFP and 68-pin PLCC packages. The PIC18C801 is available in 80-pin TQFP and 84-pin PLCC packages.
An overview of features is shown in Table 1-1.
Device block diagrams are provided in Figure 1-1 for the 64/68-pin configuration, and Figure 1-2 for the 80/84-pin configuration. The pinouts for both packages are listed in Table 1-2.

High Performance RISC CPU:
• C compiler optimized architecture instruction set
• Linear program memory addressing up to 2 Mbytes
• Linear data memory addressing to 4 Kbytes
• Up to 160 ns instruction cycle:
   - DC - 25 MHz clock input
   - 4 MHz - 6 MHz clock input with PLL active
• 16-bit wide instructions, 8-bit wide data path
• Priority levels for interrupts
• 8 x 8 Single Cycle Hardware Multiplier

Peripheral Features:
• High current sink/source 25 mA/25 mA
• Up to 47 I/O pins with individual direction control
• Three external interrupt pins
• Timer0 module: 8-bit/16-bit timer/counter with 8-bit programmable prescaler
• Timer1 module: 16-bit timer/counter (time-base for CCP)
• Timer2 module: 8-bit timer/counter with 8-bit period register
• Timer3 module: 16-bit timer/counter
• Secondary oscillator clock option - Timer1/Timer3
• Two Capture/Compare/PWM (CCP) modules CCP pins can be configured as:
   - Capture input: 16-bit, max. resolution 10 ns
   - Compare is 16-bit, max. resolution 160 ns (TCY)
   - PWM output: PWM resolution is 1- to 10-bit Max. PWM freq. @:
      8-bit resolution = 99 kHz
      10-bit resolution = 24.4 kHz
• Master Synchronous Serial Port (MSSP) with two modes of operation:
   - 3-wire SPI™ (Supports all 4 SPI modes)
   - I2C™ Master and Slave mode
• Addressable USART module: Supports Interrupt on Address bit

Advanced Analog Features:
• 10-bit Analog-to-Digital Converter module (A/D) with:
   - Fast sampling rate
   - Conversion available during SLEEP
   - DNL = ±1 LSb, INL = ±1 LSb
   - Up to 12 channels available
• Programmable Low Voltage Detection (LVD) module
   - Supports interrupt on Low Voltage Detection

Special Microcontroller Features:
• Power-on Reset (POR), Power-up Timer (PWRT), and Oscillator Start-up Timer (OST)
• Watchdog Timer (WDT) with its own on-chip RC oscillator
• On-chip Boot RAM for boot loader application
• 8-bit or 16-bit external memory interface modes
• Up to two software programmable chip select signals (CS1 and CS2)
• One programmable chip I/O select signal (CSIO) for memory mapped I/O expansion
• Power saving SLEEP mode
• Different oscillator options, including:
   - 4X Phase Lock Loop (of primary oscillator)
   - Secondary Oscillator (32 kHz) clock input

CMOS Technology:
• Low power, high speed CMOS technology
• Fully static design
• Wide operating voltage range (2.0V to 5.5V)
• Industrial and Extended temperature ranges
• Low power consumption