Telecoms, Datacoms, Wireless, IoT


Contactless smartcard

20 March 2013 Telecoms, Datacoms, Wireless, IoT

EM Microelectronic has developed the EM4333, a contactless smartcard designed to fulfil the specific needs of secure access control, public transportation, loyalty cards, electronic door locks or leisure park applications. This dual ISO/IEC14443A and ISO/IEC15693 compliant transponder enables merging of vicinity and proximity applications on the same media card using the same antenna.

The circuit’s low power consumption allows operation in field strengths down to 0,05 A/m for ISO/IEC15693 and for the ISO/IEC14443A interface. The card implements an enhanced auto-detection mechanism enabling it to distinguish whether a command sent by the RFID reader is following the ISO/IEC15693 or the ISO/IEC14443A protocol.

An embedded accurate field strength detector ensures that the ISO/IEC14443 part is powered only in strong field conditions, thus ensuring the range of ISO/IEC15693 is not affected by the high-speed ISO/IEC14443A mode. The vicinity interface supports all modes specified by the ISO/IEC15693-2/3 standards, including all mandatory, most optional, and in addition a number of custom commands.

The ISO/IEC15693 communication channel provides security based on Grain 128A, a public stream cipher which uses 128-bit keys, supports three-pass mutual authentication, secure messaging and message authentication code (MAC).

The proximity RF interface is configurable by software and supports ISO/IEC 14443A with data transfer rates up to 848 Kbps. The ISO/IEC14443A is operated by a 8051 CPU providing full flexibility given by customer operating software. The core offers AES-128, DES/3-DES and DMA co-processors.

The CPU is software compatible with the industry standard 8051 8-bit microprocessor, to guarantee the maximum reuse of software. The hardware implementation of the core is a modern design not relying on microcode.

The EM4333 offers 4 KB of user data EEPROM that can be shared between ISO/IEC15693 and ISO/IEC14443A. Both protocols can access the same data from different applications. The chip also offers 64 KB of code EEPROM to host the operating system and any data that does not require regular updating (eg, pictures), accessible through the ISO/IEC14443A protocol.

Powerful development tools are fully integrated into Keil’s μVision3/4 environment providing an efficient and user friendly development platform. An EMX43 emulator with RF extension allows fast and efficient development and debugging directly in the customer application.

EM Microelectronic delivers a low level library of code samples, which supports all transport layers of ISO14443-3/4 in Type A. The library functions allow easy and fast porting of customer software to the device.

For more information visit www.emmicroelectronic.com





Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

The trends driving uptake of IoT Platform as a Service
Trinity IoT Editor's Choice Telecoms, Datacoms, Wireless, IoT
IoT platforms, delivered as a service, are the key that will enable enterprises to leverage a number of growing trends within the IT space, and access a range of benefits that will help them grow their businesses.

Read more...
RF power amplifier
RF Design Telecoms, Datacoms, Wireless, IoT
The ZHL-20M2G7025X+ from Mini-Circuits is a 32 W power amplifier that operates from 20 to 2700 MHz and delivers a saturated output power of +45 dBm.

Read more...
Introducing the Quectel EG800Z series
iCorp Technologies Telecoms, Datacoms, Wireless, IoT
The EG800Z series is Quectel’s latest ultra-compact LTE Cat 1 bis module, designed to deliver reliable connectivity, low power consumption, and robust performance across a wide range of IoT applications.

Read more...
NeoMesh on LoRa
CST Electronics Telecoms, Datacoms, Wireless, IoT
Thomas Steen Halkier, CEO of NeoCortec, recently gave a keynote speech where he spoke about “NeoMesh on LoRa: Bringing true mesh networking to the LoRa PHY”.

Read more...
Modules upgraded with Direct-to-Cell tech
iCorp Technologies Telecoms, Datacoms, Wireless, IoT
Quectel Wireless Solutions has announced that several of its LTE modules are now available with Direct-to-Cell (D2C) functionality, enabling devices to seamlessly connect to satellite networks.

Read more...
USB/Ethernet smart RF power sensor
RF Design Telecoms, Datacoms, Wireless, IoT
The PWR-18PWHS-RC from Mini-Circuits is an RF power sensor that operates from 50 MHz to 18 GHz and is designed to capture pulsed and trace modulated signals with very high data resolution.

Read more...
Tiny Bluetooth LE + 802.15 + NFC module
RF Design Telecoms, Datacoms, Wireless, IoT
Unleashing enhanced processing power, expanded memory, and innovative peripherals, the BL54L15µ from Ezurio is the ultimate choice for small and low power connectivity.

Read more...
AI modules for edge intelligence
Otto Wireless Solutions Telecoms, Datacoms, Wireless, IoT
SIMCom has introduced two new entry-level AI computing modules, the SIM8668 and SIM8666, designed to bring intelligent capabilities to lightweight, energy-efficient edge devices.

Read more...
High performance ISM antennas
iCorp Technologies Telecoms, Datacoms, Wireless, IoT
Quectel Wireless Solutions has announced the launch of two new high performance ISM antennas, designed to meet the need for wireless communication in devices that operate in the industrial and commercial applications.

Read more...
Quad-band high-precision positioning module
iCorp Technologies Telecoms, Datacoms, Wireless, IoT
Quectel Wireless Solutions has recently announced the launch of the LG680P, a multi-constellation, quad-band GNSS module designed to deliver high-precision positioning across a wide range of applications.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved