SN55LBC976

9-CHANNEL DIFFERENTIAL TRANSCEIVER

SGLS091A – JUNE 1995 – REVISED JANUARY 1997

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POST OFFICE BOX 655303

Control Paths of the Differential Small

Computer Systems Interface (SCSI) and

Intelligent Peripheral Interface (IPI-2)

ANSI Standard RS-485 and

ISO 8482:1987(E)

Flat (WD) Package Using 25-mil

Center-to-Center Spacing

Per Second

1.4 mA Typical

Limiting

description

The SN55LBC976 is a 9-channel differential

transceiver

based

on

the

SN55LBC176

LinASIC

technology allows the power reduction necessary

to integrate nine differential transceivers. On-chip

enabling logic makes this device applicable for the

data path (eight data bits plus parity) and the

control path (nine bits) for both the Small

Computer Systems Interface (SCSI) and the

Intelligent Peripheral Interface (IPI-2) standard

data interfaces.

The switching speed and testing capabilities of the SN55LBC976 are sufficient to transfer data over the data

bus at 10 million transfers per second. Each of the nine channels conforms to the requirements of the ANSI

RS-485 and ISO 8482:1987(E) standards referenced by ANSI X3.129-1986 (IPI), ANSI X3.131-1993 (SCSI-2),

and the proposed SCSI-3 standards.

The SN55LBC976 is characterized for operation from – 55

°C to 125°C.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

LinASIC and LinBiCMOS are trademarks of Texas Instruments Incorporated.

† Patent pending

Copyright

© 1997, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

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GND

BSR

CRE

1A

1DE/RE

2A

2DE/RE

3A

3DE/RE

4A

4DE/RE

GND

GND

GND

GND

GND

5A

5DE/RE

6A

6DE/RE

7A

7DE/RE

8A

8DE/RE

9A

9DE/RE

CDE2

CDE1

CDE0

9B +

9B –

8B +

8B –

7B +

7B –

6B +

6B –

GND

GND

GND

GND

GND

5B +

5B –

4B +

4B –

3B +

3B –

2B +

2B –

1B +

1B –

WD PACKAGE

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