• - 交流-直流(AC-DC)控制器和稳压器
• - 直流-直流(DC-DC)控制器、转换器和稳压器
• - 电压和电流管理
• - 通讯IC
• - 驱动器
• - 热管理

• - 时钟及数据分配
• - 标准逻辑

• - 放大器和比较器
• - 模拟开关
• - 数字电位计
• - 接口
• - EMI和RFI滤波器

• - EEPROM存储器
• - 非易失性只读存储器(NVRAM)
• - SRAM存储器

说明

The SN75LBC978 is a nine-channel differential transceiver based on the 75LBC176 LinASIC™ cell. Use of TI’'s LinBiCMOS™. On-chip enabling logic makes this device applicable for the data path (eight data bits plus parity) and the control path (nine bits) for the Small Computer Systems Interface (SCSI) standard. The WRAP function allows in-circuit testing and wired-OR channels for the BSY, RST, and SEL signals of the SCSI bus.

The SN75LBC978 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.

The switching speed of the SN75LBC978 is sufficient to transfer data over the data bus at 10 million transfers per second.

特性

• Nine Differential Channels for the Data and Control Paths of the Differential Small Computer Systems Interface (SCSI)
• 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 Typ
• Thermal Shutdown Protection
• Power-Up/Power-Down Glitch Protection
• Positive and Negative Output-Current Limiting
• Open-Circuit Fail-Safe Receiver Design

LinASIC and LinBiCMOS are trademarks of Texas Instruments Incorporated.
Patent Pending