SC28L198 datasheet(3/56 Pages) PHILIPS

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Philips Semiconductors

Product specification

SC28L198

Octal UART for 3.3V and 5V supply voltage

1999 Jan 14

Uses

Statistical Multiplexers

Data Concentrators

Packet–switching networks

Process Control

Building or Plant Control

Laboratory data gathering

ISDN front ends

Computer Networks

Point–of–Sale terminals

Automotive, cab and engine controls

Entertainment systems

MIDDI keyboard control music systems

Theater lighting control

Terminal Servers

Computer–Printer/Plotter links

FEATURES

• Single 3.3V and 5V power supply

• Eight Philips industry standard full duplex UART channels

• Sixteen byte receiver FIFOs for each UART

• Sixteen byte transmit FIFOs for each UART

• In band flow control using programmable Xon/Xoff characters

• Flow control using CTSN RTSN hardware handshaking

• Automatic address detection in multi-drop mode

• Three byte general purpose character recognition

• Fast data bus, 30 ns data bus release time, 125 ns bus cycle time

• Programmable interrupt priorities

• Automatic identification of highest priority interrupt pending

• Global interrupt and control registers ease setup and interrupt

handling

• Vectored interrupts with programmable interrupt vector formats

– Interrupt vector modified with channel number

– Interrupt vector modified with channel number and channel type

– Interrupt vector not modified

• IACKN and DACKN signal pins

• Watch dog timer for each receiver (64 receive clock counts)

• Programmable Data Formats:

– 5 to 8 data bits plus parity

– Odd, even force or no parity

– 1, 1.5 or 2 stop bits

• Flexible baud rate selection for receivers and transmitters:

– 22 fixed rates; 50 – 230.4K baud or 100 to 460.8K baud

– Additional non–standard rates to 500K baud with internal

generators

– Two reload–counters provide additional programmable baud

rate generation

– External 1x or 16x clock inputs

– Simplified baud rate selection

• 1 MHz 1x and 16x data rates full duplex all channels.

• Parity, framing and overrun error detection

• False start bit detection

• Line break detection and generation

• Programmable channel mode

– Normal(full duplex)

– Diagnostic modes

automatic echo

local loop back

emote loop back

• Four I/O ports per UART for modem controls, clocks, RTSN, I/O

etc.

– All I/O ports equipped with ”Change of State Detectors”

• Two global inputs and two global outputs for general purpose I/O

• Power down mode

• On chip crystal oscillator, 2–8 MHz

• TTL input levels. Outputs switch between full V

CC and VSS

• High speed CMOS technology

• 84 pin PLCC

• 100 pin LQFP

ORDERING CODE

VCC = 5V ±10%

PACKAGES

Industrial1

DWG #

Industrial

-40

°C to +85°C

84-Pin Plastic Leaded Chip Carrier (PLCC)

SC28L198A1A

SOT189-3

100-Pin Plastic Low–Profile Quad Flat Pack (LQFP)

SC28L198A1BE

SOT407–1

VCC = 3.3V ±10%

Industrial1

-40

°C to +85°C

84-Pin Plastic Leaded Chip Carrier (PLCC)

SC28L198A1A

SOT189-3

100-Pin Plastic Low–Profile Quad Flat Pack (LQFP)

SC28L198A1BE

SOT407–1

NOTES:

1. For availability, please contact factory.

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