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PIC18F2450_08 Datasheet, PDF (3/324 Pages) Microchip Technology – 28/40/44-Pin, High-Performance, 12 MIPS, Enhanced Flash, USB Microcontrollers with nanoWatt Technology | |||
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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 Programmingâ¢
(ICSPâ¢) 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
© 2008 Microchip Technology Inc.
DS39760D-page 1
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