SC16C650B

General description

The SC16C650B is a 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 3 Mbit/s.

The SC16C650B is pin compatible with the ST16C650A and it will power-up to be functionally equivalent to the 16C450. Programming of control registers enables the added features of the SC16C650B. Some of these added features are the 32-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 SC16C650B also provides DMA mode data transfers through FIFO trigger levels and the RXRDY and TXRDY 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 SC16C650B operates at 5 V, 3.3 V and 2.5 V, and the industrial temperature range, and is available in plastic DIP40, PLCC44, LQFP48, and HVQFN32 packages.

Features

• Single channel
• 5 V, 3.3 V and 2.5 V operation
• 5 V tolerant inputs
• Industrial temperature range (-40 Cel to +85 Cel)
• After reset, all registers are identical to the typical 16C450 register set
• Capable of running with all existing generic 16C450 software
• Pin compatibility with the industry-standard ST16C450/550, TL16C450/550, PC16C450/550. Software compatible with ST16C650.
• Up to 3 Mbit/s transmit/receive operation at 5 V, 2 Mbit/s at 3.3 V, and 1 Mbit/s at 2.5 V
• 32 byte transmit FIFO
• 32 byte receive FIFO with error flags
• Programmable auto-RTS and auto-CTS
• In auto-CTS mode, CTS controls transmitter
• In auto-RTS mode, RxFIFO contents and threshold control RTS
• Automatic software/hardware flow control
• Programmable Xon/Xoff characters
• Software selectable Baud Rate Generator
• Supports IrDA version 1.0 (up to 115.2 kbit/s)
• Four selectable Receive and Transmit 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)
• Independent receiver clock input
• 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 3 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

Pricing/ordering/availability

Applications

Related applications
LCD TV - MMS functionality
Cellular phone - MMS functionality
LCD TV - MMS functionality
Set-top box - MMS functionality

Design support

Application Notes

AN10219_3; AN10219 Using SC16C650/SC16C650B to implement an IrDA interface (12-Jul-04)

AN10257_1; Differences between Philips SC16C devices and Philips low power SC16CxxxB devices (30-Mar-04)

AN10307_2; UART to Bluetooth interfacing (11-Aug-04)

AN10319_1; 8051 microcontroller to UART serial interface evaluation board (26-Aug-04)

AN10333_2; SC16CXXXB baud rate deviation tolerance (06-Dec-04)

AN10339_1; UART serial interface through USB evaluation board (18-Feb-05)

AN10353_1; Application of UART in GPS navigation system (01-Mar-05)

Support Documents

75013484; Industrial UART Product and 16CxxxB UART Product Line Card (2005-01-04)

75014351; New MultiMarket Products Quarterly highlights (2005-08-01)

75014624; Philips industrial and 16C UARTs selection guide (2005-06-01)

75013984; SC16xxxB UARTS One/two/four channel low power, low voltage 16C UARTS (2004-04-01)

75011568; Sample kit feature list (2003-05-01)

75014395; Your connection to I 2 C,UART,CAN,and USB Connecting with Philips Wired Connectivity (2005-04-01)

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