Austrian Microelectronics has announced the launch of the new AS3953 interface chip, which enables simpler and more economical application of instant high-speed near field wireless communication (NFC) between independent devices. AS3953 provides high data rate interface for smart phones, NFC devices and other host microcontrollers with standard SPI interface.
The operating power of AS3953 NFiC comes from the radio emissions (RF emissions) of the NFC reader. At most, only one external component of a capacitor needs to be added, and no external power supply is required. Compared to standard NFC readers that may require up to 20 external components, this product allows system designers to integrate full two-way NFC functionality at less than half the total cost of the former.
AS3953 fully meets the requirements of the NFC Forum (NFCIP-1 target is 106kbps) and the ISO14443A industry standard (up to 848kbps to the fourth level). This means that the product can be applied to contactless smart cards. In addition, it can be used as an interface tag compatible with the NFC Forum. It can also establish instant communication with any NFC-enabled mobile phone within a close range of 10 cm.
AS3953 is suitable for a wide variety of applications, including contactless passive programming of MCU-based systems, smart cards with displays, retail shelf labels, sensors and ultra-low power data loggers, medical Device and secure NFC Bluetooth pairing.
It can also bring innovative methods to system design, such as using a smart phone with NFC function as the main display and system controller of an independent device, the independent device does not need to add a display and a processor.
AS3953 has a configurable wake-up interrupt, which can achieve zero-power system design during shutdown. It also includes a fully analog front end, 1kB internal EEPROM, and a 4-wire SPI interface with 32-byte FIFO. The device can extract up to 5mA of energy from an external magnetic field and supply the acquired power to the application through an internal power management circuit. This makes the AS3953 ideal for battery-powered products with portable microcontrollers as the core design product.
Rene Wutte, Marketing Manager of Austrian Microelectronics, pointed out that AS3953 has created a new classification for NFC applications. It can integrate NFC functionality into any application at a lower cost than a full NFC reader without increasing the complexity of the design. This is the easiest and most economical way to communicate between applications and mobile phones today.
At the same time, Austrian Microelectronics also announced the launch of a new reference design developed in cooperation with Epson, which is mainly a passive solution for price tags and smart cards. It integrates Epson's S1C17F57 microcontroller and Austrian Microelectronics' AS3953 NFiC, of ​​which Epson's microcontroller has a built-in 64-channel electronic paper display driver. According to Manfred Wittmeir, manager of the IC department at Epson Europe, Epson has long been committed to providing high-performance semiconductor solutions for many battery-driven products. AS3953 shows that for the first time, we have established a completely passive solution without the need for self-powered equipment (such as batteries), while applying a standard NFC interface to exchange data with our microcontroller. Even engineers who are not familiar with the operation of NFC technology can quickly apply simple designs.
AS3953 NFiC is available in bare die or in 10-pin, 3mmx3mm MLPD packages. The component has now begun to provide samples.
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