PIC18F25K83数据手册Microchip中文资料规格书

描述 Description

The PIC18(L)F25/26K83 microcontroller family with CANTM technologyin 28-pins features a 12-bit ADC with Computation (ADC2) automating CapacitiveVoltage Divider (CVD) techniques for advanced touch sensing, averaging,filtering, oversampling and threshold comparison. In addition, the productfamily includes Vectored Interrupt Controller with fixed latency for handlinginterrupts, System Bus Arbiter, Direct Memory Access capabilities, UART withsupport for Asynchronous DMX, DALI and LIN transmissions, SPI, I2C, memoryfeatures like Memory Access Partition (MAP) to support customers in dataprotection and bootloader applications, and Device Information Area (DIA) whichstores factory calibration values to help improve temperature sensor accuracy.

特性 Features

• Supports CAN 1.2, 2.0A and 2.0B
• Six modes of operation
• Supports legacy - Fully backward compatibly 
• Interrupt Vector Table
• Programmable single or dual priority
• Two level hardware context saving
• Eliminates need for CPU involvement in data transfers
• Access to all memory spaces and peripherals
• Flexible source and destination message sizes
• Programmable DMA priority 
• Memory Access Partition (MAP) - Customize flash partitioning with bootloader write protection
• Device Information Area (DIA) - Dedicated memory area for data storage of temp sensor factory calibration value, factory ID and  FVR values for ADC and COMP
• WDT: 500nA @ 1.8V typical
• SLEEP mode: 50nA @ 1.8V typical 
• DOZE mode allows CPU to run at a lower clock speed than peripherals
• IDLE and SLEEP modes selectively shut down peripherals and/or core for power reduction
• Automates math functions on input signals:
• Averaging, filter calculations, oversampling and threshold comparison
• Hardware Capacitive Voltage Divider (CVD)
• Automates touch sampling and reduces software size and CPU usage when touch or proximity sensing is required
• 5-bit resolution, rail-to-rail 
• Unbuffered I/O pin output
• Comparator hysteresis enable 
• Invert output polarity
• Fixed Voltage Reference (FVR) module - 1.024V, 2.048V and 4.096V output levels
• Senses high voltage AC signal
• Generates interrupts on zero cross
• DMA compatible
• Asynchronous UART, RS-232, RS-485 compatible
• Programmable 1, 1.5, 2 stop bits
• Configurable length bytes
• Arbitrary length data packets
• Separate transmit and receive buffers with 2-byte FIFO and DMA capabilities
• SMBus, PMBUSTM compatible