AS3955 datasheet(1/111 Pages) AMSCO

部件名	AS3955

功能描述	NFC Forum Compliant Dynamic Tag

PDF	111 Pages

Scroll/Zoom	100%

制造商	AMSCO [ams AG]

网页	http://www.ams.com

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ams Datasheet

Page 1

[v1-01] 2015-Apr-29

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AS3955

NFC Forum Compliant Dynamic Tag

AS3955 NFC Dynamic Tag IC is the ultimate solution to easily

add NFC functionality to electronic devices. Thanks to a high

sensitivity ISO14443A frontend and high integrated resonance

capacitor, AS3955 offers standalone NFC passive tag

functionality in a small footprint. Fast system integration and

high speed data transfer are guaranteed by the available SPI

and I²C interfaces and by the optimized protocols (Tunneling

Mode and Extended Mode), allowing bidirectional

communication between the device microcontroller and an

external NFC compliant device or ISO14443A reader device

(PCD).

AS3955 is able to operate fully powered by the RF field, without

any external supply. This, combined with an advanced energy

harvesting feature, greatly increases battery life time or even

allows battery-less designs.

AS3955 is used with an appropriate antenna coil connected to

the terminals LC1 and LC2, and behaves as a standard passive

ISO 14443A tag (PICC). After the anti-collision protocol stage,

based on configuration, AS3955 can operate as a standalone

NFC Forum Type 2 Tag or, when tunneling mode is activated, as

a bridge between the PCD and the microcontroller, e.g. to

emulate a custom or standard ISO14443A Level 3 or Level 4 PICC

or a NFC Forum tag. A configurable wake-up signal notifies the

microcontroller on ongoing RF activities, in order to minimize

overall power consumption.

AS3955 includes an embedded EEPROM memory that can be

accessed from the PCD through the RF link or from the

microcontroller through the SPI or I²C interfaces. Part or all

memory can be protected by a 32-bit password, or permanently

locked.

AS3955 supports ISO 14443A up to Level 4 and is designed

according to EMVCo requirements, to enable the emulation of

contactless smart cards or NFC Forum compliant Type 2 or Type

4 Tags.

AS3955 is designed for high reliability, and can operate in a wide

power supply range from 1.65V to 5.5V, in a wide temperature

range from -40 °C to 125 °C. EEPROM memory reaches

automotive grade quality with endurance of 100,000 cycles and

data retention of 10 years at 125 °C.

Ordering Information and Content Guide appear at end of

datasheet.

General Description

类似零件编号 - AS3955

制造商	部件名	数据表	功能描述
ams AG	AS3955	1Mb / 102P	NFC Forum Compliant Dynamic Tag 2016-Feb-03
ams AG	AS3955	1Mb / 102P	NFC Forum Compliant Dynamic Tag 2016-Feb-03

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类似说明 - AS3955

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NXP Semiconductors	NT2H1311G0DUF	1Mb / 58P	NFC Forum Type 2 Tag compliant IC with 144/504/888 bytes user memory Rev. 3.0-24 July 2013
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ams AG	AS3955	1Mb / 102P	NFC Forum Compliant Dynamic Tag 2016-Feb-03
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