SC16C554/554D

General description

The SC16C554/554D is a 4-channel Universal Asynchronous Receiver and Transmitter (QUART) 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 Mbit/s. It comes with an Intel or Motorola interface.

The SC16C554/554D is pin compatible with the ST16C554 and TL16C554 and it will power-up to be functionally equivalent to the 16C454. Programming of control registers enables the added features of the SC16C554/554D. Some of these added features are the 16-byte receive and transmit FIFOs, automatic hardware or software flow control and Infrared encoding/decoding. The selectable auto-flow control feature significantly reduces software overload and increases system efficiency while in FIFO mode by automatically controlling serial data flow using RTS output and CTS input signals. The SC16C554/554D also provides DMA mode data transfers through FIFO trigger levels and the TXRDY and RXRDY signals. On-board status registers provide the user with error indications, operational status, and modem interface control. System interrupts may be tailored to meet user requirements. An internal loop-back capability allows on-board diagnostics.

The SC16C554/554D operates at 5 V, 3.3 V and 2.5 V, and the industrial temperature range, and is available in plastic PLCC68, LQFP64, and LQFP80 packages.

Features

• 5 V, 3.3 V and 2.5 V operation
• Industrial temperature range
• The SC16C554/554D is pin compatible with the industry-standard ST16C454/554, ST68C454/554, ST16C554, TL16C554
• Up to 5 Mbit/s data rate at 5 V and 3.3 V, and 3 Mbit/s at 2.5 V
• 16-byte transmit FIFO
• 16-byte receive FIFO with error flags
• Automatic software/hardware flow control
• Programmable Xon/Xoff characters
• Software selectable Baud Rate Generator
• Four selectable Receive FIFO interrupt trigger levels
• Standard modem interface or infrared IrDA encoder/decoder interface
• 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 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).

Products/packages

The variants in the table below are discontinued. See the table Discontinued information for more information.

Quality/reliability/chemical content

The variants in the table below are discontinued. See the table Discontinued information for more information.

Quality and reliability disclaimer

Pricing/ordering/availability

Discontinued information

Block diagrams/pinning

Design support

Application Notes

AN10319_1; 8051 microcontroller to UART serial interface evaluation board (2004-08-26)

AN10312_1; Differences between Philips 4-channel SC16C devices and Philips low power SC16CxxB devices (2004-08-26)

AN10257_1; Differences between Philips SC16C devices and Philips low power SC16CxxxB devices (2004-03-30)

AN10163_1; SC16C550 application note (2003-06-11)

AN10608_1; XTAL1 clock and IOW pulse synchronization issue (2007-04-24)

Parametrics/similar products

Print / Email

• Print this information
• Email this information

Disclaimers

• General product disclaimer
• Quality and reliability disclaimer