PIC18C442-E/PT

高性能微控制器，10位A / D High-Performance Microcontrollers with 10-Bit A/D

DEVICE OVERVIEW

This document contains device specific information for the following four devices:

1\. PIC18C242

2\. PIC18C252

3\. PIC18C442

4\. PIC18C452

These devices come in 28-pin and 40-pin packages. The 28-pin devices do not have a Parallel Slave Port PSP implemented and the number of Analog-to Digital A/D converter input channels is reduced to 5. An overview of features is shown in Table 1-1.

The following two figures are device block diagrams sorted by pin count: 28-pin for Figure 1-1 and 40-pin for Figure 1-2. The 28-pin and 40-pin pinouts are listed in Table 1-2 and Table 1-3, respectively.

High Performance RISC CPU:

• C compiler optimized architecture/instruction set

   - Source code compatible with the PIC16CXX instruction set

• Linear program memory addressing to 2 Mbytes

• Linear data memory addressing to 4 Kbytes

• Up to 10 MIPs operation:

   - DC - 40 MHz osc./clock input

   - 4 MHz - 10 MHz osc./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

• Three external interrupt pins

• Timer0 module: 8-bit/16-bit timer/counter with 8-bit programmable prescaler

• Timer1 module: 16-bit timer/counter

• Timer2 module: 8-bit timer/counter with 8-bit period register time-base for PWM

• Timer3 module: 16-bit timer/counter

• Secondary oscillator clock option - Timer1/Timer3

• Two Capture/Compare/PWM CCP modules.

   CCP pins that can be configured as:

   - Capture input: capture is 16-bit, max. resolution 6.25 ns TCY/16

   - Compare is 16-bit, max. resolution 100 ns TCY

   - PWM output: PWM resolution is 1- to 10-bit.

      Max. PWM freq. @: 8-bit resolution = 156 kHz

                           10-bit resolution = 39 kHz

• Master Synchronous Serial Port MSSP module. 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

• Parallel Slave Port PSP module

Analog Features:

• Compatible 10-bit Analog-to-Digital Converter module A/D with:

   - Fast sampling rate

   - Conversion available during SLEEP

   - DNL = ±1 LSb, INL = ±1 LSb

• Programmable Low Voltage Detection LVD module

   - Supports interrupt-on-low voltage detection

• Programmable Brown-out Reset BOR

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 for reliable operation

• Programmable code protection

• Power saving SLEEP mode

• Selectable oscillator options including:

   - 4X Phase Lock Loop of primary oscillator

   - Secondary Oscillator 32 kHz clock input

• In-Circuit Serial Programming ICSP™ via two pins

CMOS Technology:

• Low power, high speed EPROM technology

• Fully static design

• Wide operating voltage range 2.5V to 5.5V

• Industrial and Extended temperature ranges

• Low power consumption