AS3955 datasheet(2/111 Pages) AMSCO

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[v1-01] 2015-Apr-29

AS3955 − General Description

Key Benefits & Features

The benefits and features of AS3955, NFC Forum compliant

Dynamic Tag are listed below:

Figure 1:

Added Value of Using AS3955

Benefits

Features

• NFC Forum compliance for full interoperability

• Type 2 Tag standalone functionality

• Type 4 Tag emulation with external MCU

• NFC Forum compliance

• ISO 14443A compliance up to Level 4

• Operating frequency at 13.56 MHz

• Bit rate at 106 kbps

• 7-byte UID

• Choice of memory size based on application

• 2 kbit EEPROM (216 bytes of user data) or

• 4 kbit EEPROM (472 bytes of user data)

• Allows zero-power standby

• Configurable passive wake-up interrupt

• Enables long battery life time, or battery-less

designs

• Energy harvesting to supply up to 5mA @ 4.5V

(regulated)

• Allows fast antenna prototyping (ISO antenna

classes 1 to 6)

• 45 pF integrated resonant capacitor

• Design flexibility, easy integration. Fits

requirements for various embedded applications

• 3/4-wire SPI slave interface up to 5 Mbps

• I²C slave interface up to 1 Mbps

• Design flexibility, easy integration

• Programmable I²C address

• Fits supply requirements for various applications,

including industrial

• Wide interface supply range (1.65V to 5.5V)

• Support for multiple applications, and storage of

sensitive data

• 32-bit password memory protection

• High performance and robust data

communication, allows custom protocols to be

implemented

• Tunneling and Extended modes for MCU

communication

• Consistent NFC behavior of battery supplied

devices in e.g. pairing applications

• Silent mode (MCU power status detection),

configurable between 1.42V and 3.65V

• Possibility to disable RF communication

• Configurable Chip Kill mode

• Small outline, compatibility to common inlay and

card manufacturing lines, surface-mount

assembly

• Sawn wafer

• WL-CSP package

• 10-pin MLPD 3x3mm package

AS3955 数据表(PDF) 2 Page - ams AG

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