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基于Maxim公司的MAX66300高频RFID收发器解决方案

来源：电子产品世界

2018-12-07

类别：工业控制

256

拍明

原标题：Maxim MAX66300高频RFID收发器解决方案

　　Maxim公司的MAX66300是集成了SHA-256安全认证引擎和RFID读卡的DeepCover安全认证器,13.56MHz无接触通信,RFID读卡符合ISO 15693标准;SHA-256认证协处理器是基于FIPS 180-4标准,3.3V或5V电源电压,±2kV HBM ESD保护,独特的64位串行码,HF输出功率高达200mW,主要用在安全接入控制,财产跟踪读卡,打印机读卡器,血糖仪/监视器,手持读卡器模块.本文介绍了MAX66300主要特性和优势,框图,多种典型应用电路,评估系统MAX66300-24x主要特性,框图,电路图,材料清单和PCB设计图,以及MAX66242标识电路图,材料清单和PCB设计图.

　　DeepCover® embedded security solutions cloak sensitive data under multiple layers of advanced physical security to provide the most secure key storage possible.

　　The DeepCover Secure Authenticator (MAX66300) combines a highly integrated RFID reader for contactless communication at 13.56MHz and a SHA-256 secure authenticator coprocessor. The RFID IC reader covers the ISO 15693 standard. The authenticator coprocessor’s engine is based on the FIPS 180-4 standard and supports secure challenge-and-response authentication when paired with peripherals such as the Maxim MAX66240/ MAX66242 family of tag solutions. An embedded host processor can easily interface with the MAX66300 using its UART or SPI interface.

　　MAX66300主要特性和优势:

　　Secure, Contactless Host Authenticator ISO/IEC 15693 Standard Compliant

　　SHA-256 Engine to Run a Symmetric Key-Based Bidirectional Secure Authentication

　　Four 32-Byte Pages of User Memory

　　Four Master Secrets with Multiple Programmable Protection Options

　　76-Byte Scratchpad in SRAM

　　True Hardware Random-Number Generator

　　Unique 64-Bit Serial Number

　　Design Flexibility Supports Diverse Applications UART and SPI Interface Ports Power-Down Mode by an Input Pin (Low, Standby Power)

　　Antenna Short-Circuit Protection

　　Compatible with 3.3V or 5V Supply Voltages

　　±2kV HBM ESD Protection

　　Scalable 13.56MHz Analog Front-End Provides Support for Multiple Antenna Configurations Single- or Double-Antenna Driver Using On-Off Keying (OOK) Modulation

　　User-Selectable ASK Uplink Modulations Index Adjustable from 7% Up to 30%

　　High-Output RF Power of Up to 200mW

　　Multiple Receiver Inputs for High-Communication Reliability

　　Built-In Receiver Lowpass-Filter Cutoff Frequencies Selectable Between 400kHz and 1MHz

　　Built-In Receiver Highpass-Filter Cutoff Frequency Selectable Among 100kHz, 200kHz, and 300kHz

　　Selectable Receive Gain from 0dB up to 40dB

　　Multiple Subcarrier Receiving Compatibility (212kHz and 424kHz)

　　Antenna Short-Circuit Protection Enhances System Ruggedness

　　MAX66300应用:

　　Secure Access Control

　　Asset-Tracking Readers

　　Authentication of Consumables

　　• Readers in Printers (Ink Cartridge)

　　• Blood Glucose Meters/Monitors

　　Handheld Reader Modules

　　图1.MAX66300框图

　　图2. MAX66300典型应用框图

　　评估系统MAX66300-24x

　　The MAX66300-24x evaluation system (EV system) comprises a MAX66300 evaluation kit (EV kit) and a MAX66242 tag. The MAX66300 EV kit combines a RFID reader for contactless communication at 13.56MHz and a SHA-256 secure authenticator coprocessor. The RFID reader covers the ISO 15693 standard and the authenticator coprocessor is based on the FIPS 180-4 standard. The MAX66242 tag operates as a solution covering the ISO 15693 standard. By pairing the MAX66300 EV kit with the MAX66242 EV kit into an EV system, EV kit software can operate to show a secure challenge and response authentication and other part specific functionality.

　　评估系统MAX66300-24x主要特性:

　　A Secure, Contactless RFID Reader (MAX66300)

　　3.3V or 5V AFE Operation

　　UART and SPI Interface Support Through the MAXQ610

　　Configuration for Lower Power Systems with Direct Antenna Connections

　　On-Board 13.56MHz and 24MHz Oscillators

　　Symmetric Key-Based Secure Authentication System

　　Pushbuttons for Board Reset and MAX66300 Reset

　　Port Select Switch Control

　　Jumpers for SPI, UART, and Control Signals

　　Protected Tag Solution with Peripheral Linking (MAX66242)

　　HF Interface at 13.56MHz