MAX1840

低电压SIM/智能卡电平转换器,µMAX封装

低电压、高速、SIM/智能卡电平转换器


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说明

The MAX1840/MAX1841 subscriber identity module (SIM)/smart card level translators provide level shifting and electrostatic discharge (ESD) protection for SIM and smart card ports. These devices integrate two unidirectional level shifters for the reset and clock signals, a bidirectional level shifter for the serial data stream, and ±10kV ESD protection on all card contacts.

The MAX1840 includes a SHDN control input to aid insertion and removal of SIM and smart cards, while the MAX1841 includes a system-side data driver to support system controllers without open-drain outputs. The logic supply voltage range is +1.4V to +5.5V for the "controller side" and +1.7V to +5.5V for the "card side." Total supply current is 1.0µA. Both devices automatically shut down when either power supply is removed. For a complete SIM card interface, combine the MAX1840/MAX1841 with the MAX1686H 0V/3V/5V regulated charge pump.

The MAX1840/MAX1841 are available in ultra-small 10-pin µMAX packages that are only 1.09mm high and half the area of an 8-pin SO.

The MAX1840/MAX1841 are compliant with GSM test specifications 11.11 and 11.12.
MAX1840、MAX1841:典型工作电路 MAX1840、MAX1841:典型工作电路 放大+

关键特性

  • SIM/Smart Card Level Shifting
  • +1.4V to +5.5V Controller Voltage Range
  • +1.7V to +5.5V Card Voltage Range
  • ±10kV ESD Card Socket Protection
  • Allows Level Translation with DVCC > VCC or DVCC < VCC
  • Automatically Shuts Down When Either Supply Is Removed
  • Card Contacts Actively Pulled Low During Shutdown
  • 1µA Total Quiescent Supply Current
  • 0.01µA Total Shutdown Supply Current
  • Ultra-Small 10-Pin µMAX Package
  • Compliant with GSM Test Specifications 11.11 and 11.12

应用

  • 逻辑电平转换
  • GSM蜂窝电话的SIM接口
  • 智能读卡器
  • SPI™、QSPI™、MICROWIRE™电平转换
Part NumberVCC
(V)
VCC
(V)
ICCQ
(µA)
Level ShiftersPackage/PinsOper. Temp.
(°C)
Budgetary
Price
LogicCardmaxSee Notes
MAX1840 1.4 to 5.51.7 to 5.53.51 Bidirectional
UMAX/10
WAFER UNSAWN
-40 to +85$1.62 @1k
MAX1841 
UMAX/10
-
查看所有SIM/Smart Card Level Translators (4)
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。

CAD Symbols and Footprints

  • MAX1840EUB
  • MAX1840EUB+
  • MAX1840EUB+T
  • MAX1840EUB-T
  • 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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