SN75LBC976 Datasheet | 9-Channel DIFFERENTIAL TRANSCEIVER





(Datasheet) SN75LBC976 Datasheet PDF Download

Part Number SN75LBC976
Description 9-Channel DIFFERENTIAL TRANSCEIVER
Manufacture etcTI
Total Page 24 Pages
PDF Download Download SN75LBC976 Datasheet PDF

Features: ą SN75LBC976 9ĆCHANNEL DIFFERENTIAL TR ANSCEIVER ą SLLS133D − AUGUST 1992 REVISED MAY 1995 • Nine Different ial Channels for the Data and Control P aths of the Differential Small Computer Systems Interface (SCSI) and Intellige nt Peripheral Interface (IPI-2) • Mee ts or Exceeds the Requirements of ANSI Standard RS-485 and ISO 8482:1987(E) Packaged in Shrink Small-Outline Pack age With 25-mil Terminal Pitch • Desi gned to Operate at 10 Million Transfers Per Second • Low Disabled Supply Cur rent 1.4 mA Typical • Thermal-Shutdow n Protection • Power-Up/Power-Down Gl itch Protection • Positive and Negati ve Output-Current Limiting • Open-Cir cuit Fail-Safe Receiver Design descript ion The SN75LBC976 is a nine-channel di fferential transceiver based on the 75L BC176 LinASIC cell. Use of TI’s Li nBiCMOS† process technology allows the power reduction necessary to integ rate nine differential transceivers. On -chip enabling logic makes this device applicable for the data path (eight data bits plus parity.

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ą SN75LBC976
9ĆCHANNEL DIFFERENTIAL TRANSCEIVER
ą
SLLS133D − AUGUST 1992 − REVISED MAY 1995
Nine Differential Channels for the Data and
Control Paths of the Differential Small
Computer Systems Interface (SCSI) and
Intelligent Peripheral Interface (IPI-2)
Meets or Exceeds the Requirements of
ANSI Standard RS-485 and
ISO 8482:1987(E)
Packaged in Shrink Small-Outline Package
With 25-mil Terminal Pitch
Designed to Operate at 10 Million Transfers
Per Second
Low Disabled Supply Current
1.4 mA Typical
Thermal-Shutdown Protection
Power-Up/Power-Down Glitch Protection
Positive and Negative Output-Current
Limiting
Open-Circuit Fail-Safe Receiver Design
description
The SN75LBC976 is a nine-channel differential
transceiver based on the 75LBC176 LinASIC
cell. Use of TI’s LinBiCMOSprocess
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 SN75LBC976 is packaged in a shrink
small-outline package (DL) with improved thermal
characteristics using heat-sink terminals. This
package is ideal for low-profile, space-restricted
applications such as hard disk drives.
DL PACKAGE
(TOP VIEW)
GND
BSR
CRE
1A
1DE/RE
2A
2DE/RE
3A
3DE/RE
4A
4DE/RE
VCC
GND
GND
GND
GND
GND
VCC
5A
5DE/RE
6A
6DE/RE
7A
7DE/RE
8A
8DE/RE
9A
9DE/RE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56 CDE2
55 CDE1
54 CDE0
53 9B +
52 9B −
51 8B +
50 8B −
49 7B +
48 7B −
47 6B +
46 6B −
45 VCC
44 GND
43 GND
42 GND
41 GND
40 GND
39 VCC
38 5B +
37 5B −
36 4B +
35 4B −
34 3B +
33 3B −
32 2B +
31 2B −
30 1B +
29 1B −
Pins 13 through 17 and 40 through 44
are connected together to the package
lead frame and signal ground.
The switching speed and testing capabilities of the SN75LBC976 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 SN75LBC976 is characterized for operation from 0°C to 70°C.
Patent pending
LinASIC and LinBiCMOS are trademarks of 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.
Copyright 1995, Texas Instruments Incorporated
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443
2−1

                    
                    






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