DataSheet26.com

SC68C198A1A PDF даташит

Спецификация SC68C198A1A изготовлена ​​​​«NXP Semiconductors» и имеет функцию, называемую «Octal UART with TTL compatibility at 3.3V and 5V supply voltages».

Детали детали

Номер произв SC68C198A1A
Описание Octal UART with TTL compatibility at 3.3V and 5V supply voltages
Производители NXP Semiconductors
логотип NXP Semiconductors логотип 

30 Pages
scroll

No Preview Available !

SC68C198A1A Даташит, Описание, Даташиты
Philips Semiconductors
Octal UART with TTL compatibility at 3.3V
and 5V supply voltages
Product specification
SC26C198 SC68C198
SC26L198 SC68L198
Table of Contents
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
Pin Configurations . . . . . . . . . . . . . . . . . . . . . . . . . 338
Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338
Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . 339
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Functional Description . . . . . . . . . . . . . . . . . . . . . 340
Conceptual Overview . . . . . . . . . . . . . . . . . . . . . . . 340
Host Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Asynchronous bus cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Synchronous bus cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Timing Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Crystal Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Sclk – System Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Baud Rate Generator BRG . . . . . . . . . . . . . . . . . . . . . . . . 341
BRG Counters (Used for random baud rate generation) 341
Channel Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Character Recognition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Interrupt Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Global Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
I/O Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Detailed Descriptions . . . . . . . . . . . . . . . . . . . . . . . 342
Receiver and Transmitter . . . . . . . . . . . . . . . . . . . 342
Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Transmitter Status Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Transmission of ”break” . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343
1x and 16x modes, Transmitter . . . . . . . . . . . . . . . . . . . . . 343
Transmitter FIFO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343
Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343
1x and 16x mode, Receiver . . . . . . . . . . . . . . . . . . . . . . . . . 343
Receiver Status Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343
Receiver FIFO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344
RxFIFO Status: Status reporting modes . . . . . . . . . . . . . . 344
I/O ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344
General Purpose Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
Global Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
Character Recognition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
Xon Xoff Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
Multi-drop or Wake up or 9 bit mode . . . . . . . . . . . . . . . . . 345
Character Stripping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
Interrupt Arbitration and IRQN generation . . . . . . . . . . . . . . . . 345
IACKN Cycle, Update CIR . . . . . . . . . . . . . . . . . . . . . . . . . . 346
Polling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346
Enabling and Activating Interrupt sources . . . . . . . . . . . . . 346
Setting Interrupt Priorities . . . . . . . . . . . . . . . . . . . . . . . . . . 346
Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . 347
Major Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347
Minor Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
Watch-dog Timer Time–out Mode . . . . . . . . . . . . . . . . . . . 348
Wake Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
Xon/Xoff Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
REGISTER DEfiniTIONS . . . . . . . . . . . . . . . . . . . . 351
MR – Mode Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351
UCIR – Update CIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360
General Purpose Output Pin Control . . . . . . . . 361
Register Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363
Register Map Summary . . . . . . . . . . . . . . . . . . . . . 363
Register Map Detail . . . . . . . . . . . . . . . . . . . . . . . . 364
Reset Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . 372
Device Configuration after Hardware Reset or CRa cmd=x1F 372
Cleared registers: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372
Clears Modes for: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372
Disables: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372
Halts: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372
Limitations: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373
DC Electrical Specifications
(26C198 and 68C198) . . . . . . . . . . . . . . . . . . . . . . . 373
DC Electrical Specifications
(26L198 and 68L198) . . . . . . . . . . . . . . . . . . . . . . . 376
AC Electrical Characteristics5 (26L198 and
68L198) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383
DESCRIPTION
The Philips 26C198 Octal UART is a single chip CMOS–LSI
communications device that provides 8 full-duplex asynchronous
channels with significantly deeper 16 byte FIFOs, Automatic
in–band flow control using Xon/Xoff characters defined by the user
and address recognition in the wake up mode. Synchronous bus
interface is used for all communication between host and OCTART.
It is fabricated using Philips 1.0 micron CMOS technology that
combines the benefits of low cost, high density and low power
consumption.
The operating speed of each receiver and transmitter can be
selected independently from one of 22 fixed baud rates, a 16X clock
derived from one of two programmable baud rate counters or one of
three external 16X clocks (1 available at 1x clock rate). The baud
rate generator and counter can operate directly from a crystal or
from seven other external or internal clock inputs. The ability to
independently program the operating speed of the receiver and
transmitter makes the Octal UART particularly attractive for dual
speed full duplex channel applications such as clustered terminal
systems. The receivers and transmitters are buffered with FIFOs of
16 characters to minimize the potential for receiver overrun and to
reduce interrupt overhead. In addition, a handshaking capability and
in–band flow control are provided to disable a remote UART
transmitter when the receiver buffer is full or nearly so.
To minimize interrupt overhead an interrupt arbitration system is
included which reports the context of the interrupting UART via
direct access or through the modification of the interrupt vector. The
context of the interrupt is reported as channel number, type of
device interrupting ( receiver COS etc.) and, for transmitters or
receivers, the fill level of the FIFO.
The Octal UART provides a power down mode in which the
oscillator is stopped but the register contents are maintained. This
results in reduced power consumption of several orders of
magnitudes. The Octal UART is fully TTL compatible when
operating from a single +5V power supply. Operation at 3.3 volts is
maintained with CMOS interface levels.
The device also offered in a version which maintains TTL input and
output levels while operating with a 3.3 volt power supply.
1995 May 1
336 853-1756 15179









No Preview Available !

SC68C198A1A Даташит, Описание, Даташиты
Philips Semiconductors
Octal UART with TTL compatibility at 3.3V
and 5V supply voltages
Product specification
SC26C198 SC68C198
SC26L198 SC68L198
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 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 VCC and VSS
High speed CMOS technology
68 pin PLCC
ORDERING CODE
PACKAGES
84-Pin Plastic Leaded Chip Carrier (PLCC)
84-Pin Plastic Leaded Chip Carrier (PLCC)
84-Pin Plastic Leaded Chip Carrier (PLCC)
84-Pin Plastic Leaded Chip Carrier (PLCC)
NOTES:
1. For availability, please contact factory.
VCC = 5V ±10%
Commercial
0°C to +70°C
Industrial1
-40°C to +85°C
SC26C198C1A
SC26C198A1A
SC68C198C1A
SC68C198A1A
VCC = 3.3V ±10%
Commercial
0°C to +70°C
Industrial1
-40°C to +85°C
SC26L198C1A
SC26L198A1A
SC68L198C1A
SC68L198A1A
DWG #
SOT189-3
SOT189-3
SOT189-3
SOT189-3
1995 May 1
337









No Preview Available !

SC68C198A1A Даташит, Описание, Даташиты
Philips Semiconductors
Octal UART with TTL compatibility at 3.3V
and 5V supply voltages
Product specification
SC26C198 SC68C198
SC26L198 SC68L198
PIN CONFIGURATIONS
11
12
1 75
74
84-Pin PLCC
TOP VIEW
32 54
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁPINÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁOUÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁTP1111111112222222221123456789ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁi1023456789012345678n ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁFDuWRRRIIIIIIIIITTIIIITÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁCA/////////V////nVVOOOOOOOOOOOOOAAAxxxxx_xCEcCSsDDDDDDR2100123012300123tsCSNKiabcaaaabbbbdabcccccNÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁoNn ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁP2333333333344444444445555555ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁi9012345678901234567890123456n 33ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁFRu5GERRIIIIIIIITTÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁGG3////////VnVVVOOOOOOOODDDDDDDDSxxoxxiicCSssDDnnDDuE0123456712332103tssCS01tidhdddhhhhgdhTÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ0oNn ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁP5556666666666777777777788888ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁi7890123456789012345678901234n ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁFIuSRRIAIIIIIIIÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁTTRIIIITR///////nV////OOOOOOOCXXAAAAAxxCxxOOOOxxcQSDDDDD1276543LD2103210K3210tSNigeKgggeeeegeÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁfNfffffon ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
1995 May 1
338










Скачать PDF:

[ SC68C198A1A.PDF Даташит ]

Номер в каталогеОписаниеПроизводители
SC68C198A1AOctal UART with TTL compatibility at 3.3V and 5V supply voltagesNXP Semiconductors
NXP Semiconductors

Номер в каталоге Описание Производители
TL431

100 мА, регулируемый прецизионный шунтирующий регулятор

Unisonic Technologies
Unisonic Technologies
IRF840

8 А, 500 В, N-канальный МОП-транзистор

Vishay
Vishay
LM317

Линейный стабилизатор напряжения, 1,5 А

STMicroelectronics
STMicroelectronics

DataSheet26.com    |    2020    |

  Контакты    |    Поиск