Retrieve PIC MCU Microchip 18F2520 embedded firmware from its memory which include the flash and eeprom area, please view below chip features for your reference:
Power Management Features:
Peripheral Highlights (Continued):
Run: CPU on, Peripherals on
Idle: CPU off, Peripherals on
Sleep: CPU off, Peripherals off
Ultra Low 50nA Input Leakage
Run mode Currents Down to 11 ìA Typical
Idle mode Currents Down to 2.5 ìA Typical
Sleep mode Current Down to 100 nA Typical
Timer1 Oscillator: 900 nA, 32 kHz, 2V
Watchdog Timer: 1.4 ìA, 2V Typical
Two-Speed Oscillator Start-up
· Master Synchronous Serial Port (MSSP) module
Supporting 3-Wire SPI (all 4 modes) and I2C™
Master and Slave modes
· Enhanced Addressable USART module:
– Supports RS-485, RS-232 and LIN/J2602
– RS-232 operation using internal oscillator block (no external crystal required)
– Auto-wake-up on Start bit
– Auto-Baud Detect
· 10-Bit, up to 13-Channel Analog-to-Digital (A/D)
Flexible Oscillator Structure:
· Four Crystal modes, up to 40 MHz
· 4x Phase Lock Loop (PLL) – Available for Crystal and Internal Oscillators
· Two External RC modes, up to 4 MHz
· Two External Clock modes, up to 40 MHz
· Internal Oscillator Block:
– Fast wake from Sleep and Idle, 1 ìs typical
– 8 use-selectable frequencies, from 31 kHz to 8 MHz
– Provides a complete range of clock speeds from 31 kHz to 32 MHz when used with PLL
– User-tunable to compensate for frequency drift
· Secondary Oscillator using Timer1 @ 32 kHz
· Fail-Safe Clock Monitor:
– Allows for safe shutdown if peripheral clock stops
Peripheral Highlights:
Converter module:
– Auto-acquisition capability
– Conversion available during Sleep
· Dual Analog Comparators with Input Multiplexing
· Programmable 16-Level High/Low-Voltage
Detection (HLVD) module:
– Supports interrupt on High/Low-Voltage Detection
Special Microcontroller Features:
· C Compiler Optimized Architecture:
– Optional extended instruction set designed to optimize re-entrant code
· 100,000 Erase/Write Cycle Enhanced Flash Program Memory Typical
· 1,000,000 Erase/Write Cycle Data EEPROM
Memory Typical
· Flash/Data EEPROM Retention: 100 Years Typical
High-Current Sink/Source 25 mA/25 mA
Three Programmable External Interrupts
Four Input Change Interrupts
Up to 2 Capture/Compare/PWM (CCP) modules,
· Priority Levels for Interrupts
· 8 x 8 Single-Cycle Hardware Multiplier
· Extended Watchdog Timer (WDT):
– Programmable period from 4 ms to 131s
one with Auto-Shutdown (28-pin devices)
· Enhanced Capture/Compare/PWM (ECCP)
module (40/44-pin devices only):
– One, two or four PWM outputs
– Selectable polarity
– Programmable dead time
– Auto-shutdown and auto-restart
· Single-Supply 5V In-Circuit Serial
Programming™ (ICSP™) via Two Pins
· In-Circuit Debug (ICD) via Two Pins
· Wide Operating Voltage Range: 2.0V to 5.5V
· Programmable Brown-out Reset (BOR) with
Software Enable Option