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PIC18F2550-I/SP 28/40/44-Pin High-Performance USB Microcontrollers
Enhanced Flash USB Microcontrollers with NanoWatt Technology featuring universal serial bus compliance and advanced power management capabilities.
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
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 for safe shutdown if any clock stops
Product Specifications
Model
Program Memory (Bytes)
RAM (Bytes)
EEPROM (Bytes)
I/O Pins
10-bit A/D Channels
CCP/ECCP
MSSP
Enhanced USART
Comparators
USB
PIC18F2455
24K
2048
256
24
10
2/0
No
Y
Y
1
PIC18F2550
32K
2048
256
24
10
2/0
No
Y
Y
1
PIC18F4455
24K
2048
256
35
13
1/1
Yes
Y
Y
1
PIC18F4550
32K
2048
256
35
13
1/1
Yes
Y
Y
1
Packaging & Shipping
Standard export packaging available. Customers can choose from cartons, wooden cases, and wooden pallets according to their requirements.
Frequently Asked Questions
How to obtain the price?
We typically provide quotations within 24 hours of receiving your inquiry (excluding weekends and holidays). For urgent pricing requests, please contact us directly.
What is your delivery time?
Small batches typically ship within 7-15 days, while large batch orders may require approximately 30 days depending on order quantity and season.
What are your payment terms?
Factory pricing with 30% deposit and 70% balance payment via T/T before shipment.
What are the shipping options?
Available shipping methods include sea freight, air freight, and express delivery (EMS, UPS, DHL, TNT, FEDEX). Please confirm your preferred method before ordering.
