MAX1740中文资料SIM/智能卡电平转换器，µMAX封装数据手册ADI规格书

描述 Description

The MAX1740/MAX1741 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 MAX1740 includes a SHDN-bar control input to aid insertion and removal of SIM and smart cards, while the MAX1741 includes a system-side data driver to support system controllers without open-drain outputs. The logic supply voltage range is +1.425V to +5.5V for the \"controller side\" and +2.25V to +5.5V for the \"card side\". Total supply current is 2.5µA max. Both devices automatically shut down when either power supply is removed. For a complete SIM-card interface, combine the MAX1740/MAX1741 with the MAX1686H 0V/3V/5V regulated charge pump.
The MAX1740/MAX1741 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 MAX1740/MAX1741 are compliant with GSM test specifications 11.11 and 11.12.

特性 Features

• SIM/Smart Card Level Shifting
• ±10kV ESD Card Socket Protection
• Allows Level Translation with DVCC > VCC or DVCCVCC
• Automatically Shuts Down When Either Supply Is Removed
• Card Contacts Actively Pulled Low During Shutdown
• +1.425V to +5.5V Controller Voltage Range
• +2.25V to +5.5V Card Voltage Range
• 2.5µA (max) 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 Application

• 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

简介

MAX1740属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由制造生产的MAX1740DC-DC 开关控制器PMIC（电源管理集成电路）DC 到 DC 开关式控制器是用于高效率电路的稳压 IC，其配置为生成高于（突升或步升）或低于（突降或步降）输入电源的输出电源电压。其他拓扑结构可能包括：降压-升压、反激、正激、Cuk、SEPIC、全桥、半桥和推挽式。这些器件不同于需要最小电压并“烧尽”多余电压的线性稳压器。