NXP Semiconductors


Select site:

English

Datasheet

SC16C2550
(Product Specification)
19-Jun-03, 46 pages, 604 kB

Download Datasheet
Download all documentation

Dual UART with 16 bytes of transmit and receive FIFOs and infrared (IrDA) encoder/decoder

General description
Features
Products/packages
Chemical content
Pricing/ordering/availability
Samples
Applications
Block diagrams/pinning
Design support
Parametrics/similar products
Print/email
This product has been discontinued; click here for more information.

General description

The SC16C2550 is a 2 channel Universal Asynchronous Receiver and Transmitter (UART) used for serial data communications. Its principal function is to convert parallel data into serial data and vice versa. The UART can handle serial data rates up to 5 Mbits/s.

The SC16C2550 is pin compatible with the ST16C2550. It will power-up to be functionally equivalent to the 16C2450. The SC16C2550 provides enhanced UART functions with 16-byte FIFOs, modem control interface, DMA mode data transfer. The DMA mode data transfer is controlled by the FIFO trigger levels and the TXRDY and RXRDY signals. On-board status registers provide the user with error indications and operational status. System interrupts and modem control features may be tailored by software to meet specific user requirements. An internal loop-back capability allows on-board diagnostics. Independent programmable baud rate generators are provided to select transmit and receive baud rates.

The SC16C2550 operates at 5 V, 3.3 V and 2.5 V and the Industrial temperature range, and is available in plastic PLCC44, LQFP48 and DIP40 packages.

Back to top

Features

  • 2 channel UART
  • 5 V, 3.3 V and 2.5 V operation
  • Industrial temperature range
  • Pin and functionally compatible to 16C2450 and software compatible with INS8250, SC16C550
  • Up to 5 Mbits/s data rate at 5 V and 3.3 V, and 3 Mbits/s at 2.5 V
  • 16 byte transmit FIFO to reduce the bandwidth requirement of the external CPU
  • 16 byte receive FIFO with error flags to reduce the bandwidth requirement of the external CPU
  • Independent transmit and receive UART control
  • Four selectable Receive FIFO interrupt trigger levels
  • Automatic software/hardware flow control
  • Programmable Xon/Xoff characters
  • Software selectable Baud Rate Generator
  • Sleep mode
  • Standard asynchronous error and framing bits (Start, Stop, and Parity Overrun Break)
  • Transmit, Receive, Line Status, and Data Set interrupts independently controlled
  • Fully programmable character formatting:
    • 5-, 6-, 7-, or 8-bit characters
    • Even-, Odd-, or No-Parity formats
    • 1-, 1 1/2 -, or 2-stop bit
    • Baud generation (DC to 1.5 Mbit/s)
  • False start-bit detection
  • Complete status reporting capabilities
  • 3-State output TTL drive capabilities for bi-directional data bus and control bus
  • Line Break generation and detection
  • Internal diagnostic capabilities:
    • Loop-back controls for communications link fault isolation
  • Prioritized interrupt system controls
  • Modem control functions (CTS, RTS, DSR, DTR, RI, DCD).

Back to top

Block diagrams/pinning

Back to top

Disclaimer

The information published on product information pages of the www.nxp.com or www.semiconductors.com websites is an extract from product data sheets and is for information purposes only. For detailed information please check the most recent version of the relevant product data sheet as published on these websites. In the event of any conflict between product information pages and data sheets or deviations from information provided in the product data sheets on these product information pages, the information provided in the product data sheets shall prevail.


The product status of the product(s) described in the product data sheet may have changed since publication of the data sheet and therefore information in datasheets on product status may be outdated. The latest information on product status is published on the product information pages of the above-mentioned websites.


As from October 1st, 2006 Philips Semiconductors has a new trade name - NXP Semiconductors, which will be used in future data sheets together with new contact details. In data sheets where the previous Philips references remain, please use the new links as shown below.


http://www.philips.semiconductors.com use http://www.nxp.com
http://www.semiconductors.philips.com use http://www.nxp.com (Internet)
sales.addresses@www.semiconductors.philips.com use salesaddresses@nxp.com (e-mail)

The copyright notice at the bottom of each page (or elsewhere in the document, depending on the version)
- © Koninklijke Philips Electronics N.V. (year). All rights reserved -
is replaced with:
- © NXP B.V. (year). All rights reserved.-


If you have any questions related to the data sheet, please contact our nearest sales office via e-mail or phone (details via salesaddresses@nxp.com). Thank you for your cooperation and understanding.

Back to top