SN75976A Selling Leads, Price trend, SN75976A DataSheet download, circuit diagram from SeekIC.com

Features: Improved Speed and Package Replacement for the SN75LBC976 Designed to Operate at up to 20 Million Data Transfers per Second (Fast-20 SCSI) Nine Differential Channels for the Data and Control Paths of the Small Computer Systems Interface (SCSI) and Intelligent Peripheral Interface (IPI) ...

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SeekIC No. : 004499671 Detail

SN75976A: Features: Improved Speed and Package Replacement for the SN75LBC976 Designed to Operate at up to 20 Million Data Transfers per Second (Fast-20 SCSI) Nine Differential Channels for the Data and Cont...

SN75976A Data Sheet

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Part Number:: SN75976A
Supply Ability:: 5000

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Upload time: 2025/12/24

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Product Details

Description

Features:

Improved Speed and Package Replacement
     for the SN75LBC976
   Designed to Operate at up to 20 Million
     Data Transfers per Second (Fast-20 SCSI)
   Nine Differential Channels for the Data and
      Control Paths of the Small Computer
      Systems Interface (SCSI) and Intelligent
     Peripheral Interface (IPI)
   SN75976A Packaged in Shrink
      Small-Outline Package with 25-Mil Terminal
      Pitch (DL) and Thin Shrink Small-Outline
      Package with 20-Mil Terminal Pitch (DGG)
    SN55976A Packaged in a 56-Pin Ceramic
      Flat Pack (WD)
   Two Skew Limits Available
   ESD Protection on Bus Terminals
      Exceeds 12 kV
Low Disabled Supply Current 8 mA Typ
   Thermal Shutdown Protection
   Positive- and Negative-Current Limiting
   Power-Up/Down Glitch Protection

Pinout

Connection Diagram

Specifications

Supply voltage range, V_CC(see Note 1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 6 V
Bus voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..10 V to 15 V
Data I/O and control (A side) voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to V_CC+0.5 V
Electrostatic discharge:B side and GND, Class 3, A: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (see Note 2) 12 kV
                                    B side and GND, Class 3, B: (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 400 V
                                    All terminals, Class 3, A:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 kV
All terminals, Class 3, B: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. . . . . . . .400 V
Continuous total power dissipation (see Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . internally limited
Storage temperature range, T_stg. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . .   65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C

Description

The SN75976A is an improved replacement for the industry's first 9-channel RS-485 transceiver - the SN75LBC976. The A version
offers improved switching performance, a smaller package, and higher ESD protection. The SN75976A is offered in two versions. The '976A2
skew limits of 4 ns for the differential drivers and 5 ns for the differential receivers complies with the recommended skew budget of the Fast-20 SCSI standard for data transfer rates up to 20 million transfers per second. The 'SN75976A supports the Fast SCSI skew budget for 10 million
transfers per second. The skew limit ensures that the propagation delay times, not only from channel-to-channel but from device-to-device, are closely matched for the tight skew budgets associated with high-speed parallel data buses.

The patented thermal enhancements made to the 56-pin shrink small-outline package (SSOP) of the SN75976A have been applied to the new, thin shrink, small-outline package (TSSOP). The TSSOP package offers even less board area requirements than the SSOP while reducing the package height to 1 mm. This provides more board area and allows component mounting to both sides of the printed circuit boards for low-profile, space-restricted applications such as small form-factor hard disk drives.

SN75976A

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