●DEVICE OVERVIEW
●This document contains device specific information for the following devices:
●• PIC18F6525
●• PIC18F6621
●• PIC18F8525
●• PIC18F8621
●This family offers the advantages of all PIC18 microcontrollers – namely, high computational performance at an economical price – with the addition of high-endurance Enhanced Flash program memory. The PIC18F6525/6621/8525/8621 family also provides an enhanced range of program memory options and versatile analog features that make it ideal for complex, high performance applications.
●High Performance RISC CPU:
●• Linear program memory addressing to 64 Kbytes
●• Linear data memory addressing to 4 Kbytes
●• 1 Kbyte of data EEPROM
●• 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
●• 31-level, software accessible hardware stack
●• 8 x 8 Single-cycle Hardware Multiplier
●Peripheral Features:
●• High current sink/source 25 mA/25 mA
●• Four external interrupt pins
●• Timer0 module: 8-bit/16-bit timer/counter
●• Timer1 module: 16-bit timer/counter
●• Timer2 module: 8-bit timer/counter
●• Timer3 module: 16-bit timer/counter
●• Timer4 module: 8-bit timer/counter
●• Secondary oscillator clock option – Timer1/Timer3
●• Two Capture/Compare/PWM (CCP) modules:
● - Capture is 16-bit, max. resolution 6.25 ns (TCY/16)
● - Compare is 16-bit, max. resolution 100 ns (TCY)
● - PWM output: 1 to 10-bit PWM resolution
●• Three Enhanced Capture/Compare/PWM (ECCP) modules:
● - Same Capture/Compare features as CCP
● - One, two or four PWM outputs
● - Selectable polarity
● - Programmable dead time
● - Auto-Shutdown on external event
● - Auto-Restart
●• Master Synchronous Serial Port (MSSP) module with two modes of operation:
● - 2/3/4-wire SPI (supports all 4 SPI modes)
● - I2C™ Master and Slave mode
●• Two Enhanced USART modules:
● - Supports RS-485, RS-232 and LIN 1.2
● - Auto-Wake-up on Start bit
● - Auto-Baud Rate Detect
●• Parallel Slave Port (PSP) module
●External Memory Interface
●(PIC18F8525/8621 Devices Only):
●• Address capability of up to 2 Mbytes
●• 16-bit interface
●Analog Features:
●• 10-bit, up to 16-channel Analog-to-Digital Converter (A/D):
● - Auto-Acquisition
● - Conversion available during Sleep
●• Programmable 16-level Low-Voltage Detection (LVD) module:
● - Supports interrupt on Low-Voltage Detection
●• Programmable Brown-out Reset (BOR)
●• Dual analog comparators:
● - Programmable input/output configuration
●Special Microcontroller Features:
●• 100,000 erase/write cycle Enhanced Flash program memory typical
●• 1,000,000 erase/write cycle Data EEPROM memory typical
●• 1 second programming time
●• Flash/Data EEPROM Retention: > 100 years
●• Self-reprogrammable under software control
●• 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 (PLL) – of primary oscillator
● - Secondary Oscillator (32 kHz) clock input
●• In-Circuit Serial Programming™ (ICSP™) via two pins
●• MPLAB® In-Circuit Debug (ICD 2) via two pins
●CMOS Technology:
●• Low power, high-speed Flash technology
●• Fully static design
●• Wide operating voltage range (2.0V to 5.5V)
●• Industrial and Extended temperature ranges
