MAX3320T

3V至5.5V、高达250kbps、真RS-232收发器,带有4µA AutoShutdown Plus及上电复位


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说明

The MAX3320 combines a microprocessor (µP) supervisory circuit with an RS-232 transceiver. The power-on reset performs a single function: it asserts a reset signal whenever the VCC supply voltage declines below a preset threshold, staying asserted for at least 100ms after VCC rises above the reset threshold. The MAX3320 has an active-low RESET output, which is guaranteed to be in the correct state for VCC down to 1V. The reset comparator is designed to ignore fast transients on VCC. Reset thresholds suitable for operation with a variety of supply voltages are available.

The MAX3320 transceivers have a proprietary low-dropout transmitter output stage, enabling true RS-232 performance with a dual charge pump powered from a +3V to +5.5V supply. The device requires only four small 0.1µF external charge-pump capacitors, and is guaranteed to run at data rates of up to 250kbps. It comes in the space-saving 20-pin SSOP package.
MAX3320A、MAX3320B、MAX3320L、MAX3320T:典型工作电路 MAX3320A、MAX3320B、MAX3320L、MAX3320T:典型工作电路 放大+

关键特性

  • Precise Monitoring of 5V and 3.3V Power-Supply Voltages:
    • 100ms (min) Power-On active-low RESET Pulse Width
    • Power-Supply Transient Immunity
    • Guaranteed active-low RESET Valid to VCC = 1V
  • 4µA Supply Current Achieved with AutoShutdown Plus™
  • Receivers Always Active
  • Power-On Reset Always Active
  • 4µA Low-Power Shutdown
  • 250kbps Guaranteed Data Rate

应用

  • 手持式装置
  • 掌上电脑
  • 外设
  • 便携式电池供电设备
  • 打印机
Part NumberVSUPPLY
(V)
TxRxData Rate
(kbps)
ICC
(mA)
Internal Charge PumpExt. CapsCap. Value
(µF)
Rx Active in ShutdnPackage/PinsBudgetary
Price
mintypnomSee Notes
MAX3320 
3.3
5
222500.45Yes40.12
SSOP/20
$4.11 @1k
查看所有RS-232 Line Driver/Receivers (136)
Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

质量和环境数据

申请可靠性报告: MAX3320T 
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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