HomedatasheetPIC18F2450-E/ML

PIC18F2450-E/ML Datasheet

24/40/44-Pin High-Performance, 12 MIPS, Enhanced Flash, USB Microcontrollers with nanoWatt Technology
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Description

Overview
Devices in the PIC18F2450/4450 family incorporate a different oscillator and microcontroller clock system than the non-USB PIC18F devices. The addition of the USB module, with its unique requirements for a stable clock source, make it necessary to provide a separate clock source that is compliant with both USB low-speed and full-speed specifications.

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)
• 256-Byte Dual Access RAM for USB
• On-Chip USB Transceiver with On-Chip Voltage Regulator
• Interface for Off-Chip USB Transceiver

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: 1.8 μA Typical, 32 kHz, 2V
• Watchdog Timer: 2.1 μA Typical
• Two-Speed Oscillator Start-up

Flexible Oscillator Structure:
• Four Crystal modes, including High-Precision PLL for USB
• Two External Clock modes, up to 48 MHz
• Internal 31 kHz Oscillator
• 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
• Three Timer modules (Timer0 to Timer2)
• Capture/Compare/PWM (CCP) module:
   - Capture is 16-bit, max. resolution 5.2 ns
   - Compare is 16-bit, max. resolution 83.3 ns
   - PWM output: PWM resolution is 1 to 10-bit
• Enhanced USART module:
   - LIN bus support
• 10-Bit, Up to 13-Channel Analog-to-Digital Converter module (A/D):
   - Up to 100 ksps sampling rate
   - Programmable acquisition time

Special Microcontroller Features:
• C Compiler Optimized Architecture with Optional Extended Instruction Set
• Flash Memory 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 4 ms to 131s
• Programmable Code Protection
• Single-Supply In-Circuit Serial Programming™ (ICSP™) via Two Pins
• In-Circuit Debug (ICD) via Two Pins
• Optional Dedicated ICD/ICSP Port (44-pin TQFP devices only)
• Wide Operating Voltage Range (2.0V to 5.5V)

Features

Parameters


Manufacturer information

MICROCHIP TECHNOLOGY

Microchip Technology Inc. is a leading provider of microcontroller, mixed-signal, analog and Flash-IP solutions, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide. Headquartered in Chandler, Arizona, Microchip offers outstanding technical support along with dependable delivery and quality.

Microchip Technology Inc. has acquired Atmel.


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