• - 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 SN75970B SCSI differential converter-control, when used in conjunction with one or more of its companion data transceiver(s), provides the superior electrical performance of differential SCSI from a single-ended SCSI bus controller. A 16-bit, Fast-SCSI bus can be implemented with just three devices (two for data and one for control) in the space-efficient, 56-pin, shrink small-outline package (SSOP) as well as the even smaller TSSOP and a few external components.

The SN75970B is available in a B2 (20 Mxfer) version and a B1 (10 Mxfer) version.

In a typical differential SCSI node, the SCSI controller provides the enables for each external RS-485 transceiver. This could require as many as 27 additional terminals for a 16-bit differential bus controller or relegate a 16-bit single-ended controller to only an 8-bit differential bus.

特性

• Provides High-Voltage Differential SCSI from Single-Ended Controller When Used With the SN75971B Data Transceiver
• Nine Transceivers Meet or Exceed the Requirements of ANSI Standard EIA-485 and ISO-8482 Standards
• ESD Protection on Bus Pins to 12 kV
• Packaged in Shrink Small-Outline Package with 25 mil Terminal Pitch and Thin Small-Package with 20 mil Terminal Pitch
• Low Disabled Supply Current 32 mA Typ
• Thermal Shutdown Protection
• Positive- and Negative-Current Limiting
• Power-Up/-Down Glitch Protection
• Open-Circuit Failsafe Receivers