Power Management Features: PIC18F4520-I/PT

? 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 ?A Typical
? Idle mode Currents Down to 2.5 ?A Typical
? Sleep mode Current Down to 100 nA Typical
? Timer1 Oscillator: 900 nA, 32 kHz, 2V
? Watchdog Timer: 1.4 ?A, 2V Typical
? Two-Speed Oscillator Start-up

Flexible Oscillator Structure:PIC18F4520-I/PT

? 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 ?s 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 the peripheral clock stops

Peripheral Highlights: PIC18F4520-I/PT

? High-Current Sink/Source 25 mA/25 mA
? Three Programmable External Interrupts
? Four Input Change Interrupts
? Up to 2 Capture/Compare/PWM (CCP) modules,
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

Peripheral Highlights (Continued):PIC18F4520-I/PT

? 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)

Converter module: PIC18F4520-I/PT
– Auto-acquisition capability
– Conversion available during Sleep
? Dual Analog Comparators with Input Multiplexing
? Programmable 16-Level High/Low-Voltage

Detection (HLVD) module:PIC18F4520-I/PT
– 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 – PIC18F4520-I/PT
? 1,000,000 Erase/Write Cycle Data EEPROM

Memory Typical – PIC18F4520-I/PT
? Flash/Data EEPROM Retention: 100 Years Typical
? Self-Programmable under Software Control
? Priority Levels for Interrupts
? 8 x 8 Single-Cycle Hardware Multiplier
? Extended Watchdog Timer (WDT):
– Programmable period from 4 ms to 131s
? 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