PIC18F2450 Datasheet, PDF (3/320 Pages) Microchip Technology – 28/40/44-Pin, High-Performance, 12 MIPS, Enhanced Flash, USB Microcontrollers with nanoWatt Technology

PIC18F2450/4450
28/40/44-Pin, High-Performance, 12 MIPS, Enhanced Flash,
USB Microcontrollers with nanoWatt Technology
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)
Device
Program Memory
Flash
(bytes)
# Single-Word
Instructions
Data
Memory
SRAM
(bytes)
I/O
10-Bit A/D
(ch)
CCP
EUSART
PIC18F2450
16K
8192
768*
23
10
1
1
PIC18F4450
16K
8192
768*
34
13
1
1
* Includes 256 bytes of dual access RAM used by USB module and shared with data memory.
Timers
8/16-Bit
1/2
1/2
© 2006 Microchip Technology Inc.
Advance Information
DS39760A-page 1