Texas Instruments SN75976A 9-Channel Differential Transceiver SN75976A1DGGG4

The SN75976A1DGGG4 is a 9-channel differential transceiver designed for high-speed data communication, capable of operating at data transfer rates of up to 20 million transfers per second, compliant with the Fast-20 SCSI standard. It features improved switching performance and enhanced electrostatic discharge (ESD) protection, exceeding 12 kV on bus terminals, which is significantly higher than industry standards. The device is available in a thin shrink small-outline package (TSSOP) that minimizes board space and height, making it suitable for compact applications such as small form-factor hard disk drives. The transceiver supports both RS-485 and SCSI communication protocols, with skew limits of 4 ns for drivers and 5 ns for receivers, ensuring tight timing requirements are met for high-speed parallel data buses. It operates over a temperature range of 0¬8C to 70¬8C and includes features such as thermal shutdown protection, positive and negative current limiting, and power-up/down glitch protection. The low disabled supply current of 8 mA typ further enhances its efficiency in power-sensitive applications.