NCN4557中文资料SIM/SAM/Smart Card Power Supply and Level Shifter, Dual数据手册ONSEMI规格书

描述 Description

The NCN4557 is a dual interface analog circuit designed to translate the voltages between SIM Cards, SAM Cards or Smart Cards and a microcontroller (or similar control device). It integrates two LDOs for power conversion and three level shifters per channel allowing the management of two independent chip cards. The device fulfills the ISO-7816 and EMV smart card interface requirements as well as the GSM and 3G mobile standard. Due to a built-in sequencer, the device enables automatic activation and deactivation. Through the ENABLE pin a low current shutdown mode can be activated extending the battery life.The card power supply voltage (1.8 V or 3.0 V) and the card socket A or B are selected using two dedicated pins (SEL0 & SEL1).

特性 Features

• Supports 1.8 V or 3.0 V Operating SIM/SAM/Smart Cards
• Support Main Types of SIM cards
• The LDOs are able to Supply more than 50 mA Under 1.8 V and 3.0 V
• High load drive capabilities compatible with 3G standard
• ESD Protection on Card Pins in Excess of 8.0 kV
• Enhanced system safety
• Built-in Sequencer for Activation and Deactivation
• Power-up and Power-down internally managed
• Very Compact LowProfile 3x3 QFN16 Package
• Save space

应用 Application

• Dual SIM Card Interface Circuit for 2G, 2.5G and 3G Mobile Phone Application
• Wireless PC/Laptop Cards (PCMCIA Cards)
• Smart Card Readers
• POS Terminals (SAM Card Interfaces)
• Portable Multimedia Players (PMP)
• Set Top Box (STB)

简介

NCN4557属于集成电路（IC）的专用。由制造生产的NCN4557专用该系列产品可提供所需的功能，用以将信息源/信宿连到各种复杂或范围狭窄应用中的传感器、变送器、致动器、传输介质或其他此类端点。例如，汽车安全气囊驱动器、车身控制和信息娱乐总线、自适应电缆均衡器、智能卡等等。