DS276

低功耗、收发器芯片


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说明

The DS276 Low-Power Serial Communications Transceiver is designed with extremely low-power requirements making it ideal for battery-powered systems. The single driver receiver pair operates from as little as 2.7 V and consumes less than 25µA in standby mode.

The receiver input translates RS-232 signal levels to common CMOS/TTL levels. The transmitter circuit steals current from the receive RS-232 signal when that signal is in a negative state (marking). Since most serial communication ports remain in a negative state statically, using the receive signal for negative power greatly reduces the DS275's static power consumption. During an actual communication session, the DS276's transmitter will use system power (3 to 12 volts) for positive transitions while still employing the receive signal for negative transitions.

The DS276 is ideal where power consumption is a critical design element and is characterized for operation between 0°C and 70°C. These applications include single-board computers, handheld instruments, portable medical instruments, and remote data logging equipment.

关键特性

  • Variable transmitter level from +5 volts to +12 volts
  • RS-232-compatible communications with 5V supply
  • Full duplex data rates up to 20kbps in peer-to-peer communications
  • Full duplex data rates up to 100kbps with 12V supply
  • Ultra-low-static current compatible with RS-232-E signals
  • Transmitter steals power from receive signal line to save power
  • Additional negative power supply not required
  • Operating range:
    • 0°C to +70°C
    • Single 3V or 5V operation

质量和环境数据

产品可靠性报告: DS276.pdf 
无铅封装的锡(Sn)晶须报告
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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