SCC68681C1A44 Product Information|NXP

Buy Options

SCC68681C1A44,512

No Longer Manufactured

12NC: 935274497512

Details

Order

SCC68681C1A44,518

No Longer Manufactured

12NC: 935274497518

Details

Order

SCC68681C1A44,529

No Longer Manufactured

12NC: 935274497529

Details

Order

Operating Features

ParameterValue
Application
Data Communication
Operating Temperature (°C)
0~70
Number of pins
44
ParameterValue
Receiver/Transmitter type
Dual UARTs
Function
Receivers/Transmitters

Environmental

Part/12NCPbFreeEU RoHSHalogen FreeRHF IndicatorREACH SVHCWeight (mg)
SCC68681C1A44,512(935274497512)
Yes
Yes
Yes
DREACH SVHC
2354.9948539999996
SCC68681C1A44,518(935274497518)
Yes
Yes
Yes
DREACH SVHC
2354.9948539999996
SCC68681C1A44,529(935274497529)
Yes
Yes
Yes
DREACH SVHC
2354.9948539999996

Quality

Part/12NCSafe Assure Functional SafetyMoisture Sensitivity Level (MSL)Peak Package Body Temperature (PPT) (C°)FITMTBFIR
Lead SolderingLead Free SolderingLead SolderingLead Free Soldering
SCC68681C1A44,512
(935274497512)
No
3
3
225
245
3.0
3.33333333333333E8
0.0
SCC68681C1A44,518
(935274497518)
No
3
3
225
245
3.0
3.33333333333333E8
0.0
SCC68681C1A44,529
(935274497529)
No
3
3
225
245
3.0
3.33333333333333E8
0.0

Shipping

Part/12NCHarmonized Tariff (US)Disclaimer
SCC68681C1A44,512
(935274497512)
854231
SCC68681C1A44,518
(935274497518)
854231
SCC68681C1A44,529
(935274497529)
854231

Discontinued and Replacement Part Data

Part/12NCDiscontinuance NoticeLast Time Buy DateLast Time Delivery Date
SCC68681C1A44,512
(935274497512)
-
2015-06-30
2015-12-31
SCC68681C1A44,518
(935274497518)
-
2015-06-30
2015-12-31
SCC68681C1A44,529
(935274497529)
-
2015-06-30
2015-12-31

More about SCC68681C1A44

Archived content is no longer updated and is made available for historical reference only.

The Philips Semiconductors SCC68681 Dual Universal Asynchronous Receiver/Transmitter (DUART) is a single-chip MOS-LSI communications device that provides two independent full-duplex asynchronous receiver/transmitter channels in a single package. It is compatible with other S68000 family devices, and can also interface easily with other microprocessors. The DUART can be used in polled or interrupt driven systems. It is manufactured in a CMOS process.

The operating mode and data format of each channel can be programmed independently. Additionally, each receiver and transmitter can select its operating speed as one of eighteen fixed baud rates, a 16× clock derived from a programmable counter/timer, or an external 1× or 16× clock. The baud rate generator and counter/timer can operate directly from a crystal or from external clock inputs. The ability to independently program the operating speed of the receiver and transmitter make the DUART particularly attractive for dual-speed channel applications such as clustered terminal systems.

Each receiver is quadruply buffered to minimize the potential of receiver overrun or to reduce interrupt overhead in interrupt driven systems. In addition, a flow control capability is provided to disable a remote DUART transmitter when the buffer of the receiving device is full.

Also provided on the SCC68681 are a multipurpose 6-bit input port and a multipurpose 8-bit output port. These can be used as general purpose I/O ports or can be assigned specific functions (such as clock inputs or status/interrupt outputs) under program control.

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