DEVICE OVERVIEW
This document contains device-specific information for the following devices:

• PIC18F2458 • PIC18F4458
• PIC18F2553 • PIC18F4553

The PIC18F4553 family of devices 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. In addition to these features, the PIC18F4553 family introduces design enhancements that make these microcontrollers a logical choice for many high-performance, power sensitive applications.

Universal Serial Bus Features:
• USB V2.0 Compliant
• Low Speed (1.5 Mb/s) and Full Speed (12 Mb/s)
• Supports Control, Interrupt, Isochronous and Bulk Transfers
• Supports up to 32 Endpoints (16 bidirectional)
• 1-Kbyte Dual Access RAM for USB
• On-Chip USB Transceiver with On-Chip Voltage Regulator
• Interface for Off-Chip USB Transceiver
• Streaming Parallel Port (SPP) for USB Streaming Transfers (40/44-pin devices only)

Power-Managed Modes:
• Run: CPU On, Peripherals On
• Idle: CPU Off, Peripherals On
• Sleep: CPU Off, Peripherals Off
• Idle mode Currents Down to 5.8 μA Typical
• Sleep mode Currents Down to 0.1 μA Typical
• Timer1 Oscillator: 1.1 μA Typical, 32 kHz, 2V
• Watchdog Timer: 2.1 μA Typical
• Two-Speed Oscillator Start-up

Special Microcontroller Features:
• C Compiler Optimized Architecture with Optional Extended Instruction Set
• 100,000 Erase/Write Cycle Enhanced Flash Program Memory Typical
• 1,000,000 Erase/Write Cycle Data EEPROM Memory Typical
• Flash/Data EEPROM Retention: > 40 Years
• Self-Programmable under Software Control
• Priority Levels for Interrupts
• 8 x 8 Single-Cycle Hardware Multiplier
• Extended Watchdog Timer (WDT):
   - Programmable period from 41 ms to 131s
• Programmable Code Protection
• Single-Supply 5V In-Circuit Serial Programming™ (ICSP™) via Two Pins
• In-Circuit Debug (ICD) via Two Pins
• Optional Dedicated ICD/ICSP Port (44-pin TQFP package only)
• Wide Operating Voltage Range (2.0V to 5.5V)

Flexible Oscillator Structure:
• Four Crystal modes, Including High-Precision PLL for USB
• Two External Clock modes, up to 48 MHz
• Internal Oscillator Block:
   - 8 user-selectable frequencies, from 31 kHz to 8 MHz
   - User-tunable to compensate for frequency drift
• Secondary Oscillator using Timer1 @ 32 kHz
• Dual Oscillator Options allow Microcontroller and USB module to Run at Different Clock Speeds
• Fail-Safe Clock Monitor:
   - Allows for safe shutdown if any clock stops

Peripheral Highlights:
• High-Current Sink/Source: 25 mA/25 mA
• Three External Interrupts
• Four Timer modules (Timer0 to Timer3)
• Up to 2 Capture/Compare/PWM (CCP) modules:
   - Capture is 16-bit, max. resolution 5.2 ns (TCY/16)
   - Compare is 16-bit, max. resolution 83.3 ns (TCY)
   - PWM output: PWM resolution is 1 to 10-bits
• Enhanced Capture/Compare/PWM (ECCP) module:
   - Multiple output modes
   - Selectable polarity
   - Programmable dead time
   - Auto-shutdown and auto-restart
• Enhanced USART module:
   - LIN bus support
• Master Synchronous Serial Port (MSSP) module supporting 3-wire SPI (all 4 modes) and I2C™ Master and Slave modes
• 12-Bit, up to 13-Channel Analog-to-Digital Converter module (A/D) with Programmable Acquisition Time
• Dual Analog Comparators with Input Multiplexing