Description

Microchip PIC18f458 40-Pin High-Performance, Enhanced Flash Micro controllers with CAN Module High-Performance RISC CPU Linear program memory addressing up to 2 Mbytes Linear data memory addressing to 4 Kbytes Up to 10 MIPS operation DC – 40 MHz clock input 4 MHz-10 MHz oscillator/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 • Capture/Compare/PWM (CCP) modules; CCP pins can be configured as: - Capture input: 16-bit, max resolution 6.25 ns - Compare: 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 • Enhanced CCP module which has all the features of the standard CCP module, but also has the following features for advanced motor control: - 1, 2 or 4 PWM outputs - Selectable PWM polarity - Programmable PWM dead time • Master Synchronous Serial Port (MSSP) with twomodes 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, up to 8-channel Analog-to-Digital Converter module (A/D) with: - Conversion available during Sleep - Up to 8 channels available • Analog Comparator module: - Programmable input and output multiplexing • Comparator Voltage Reference module • Programmable Low-Voltage Detection (LVD) module: - Supports interrupt-on-Low-Voltage Detection • Programmable Brown-out Reset (BOR) CAN bus Module Features • Complies with ISO CAN Conformance Test • Message bit rates up to 1 Mbps • Conforms to CAN 2.0B Active Spec with: - 29-bit Identifier Fields - 8-byte message length - 3 Transmit Message Buffers with prioritization - 2 Receive Message Buffers - 6 full, 29-bit Acceptance Filters - Prioritization of Acceptance Filters - Multiple Receive Buffers for High Priority Messages to prevent loss due to overflow - Advanced Error Management Features