AS3953 ISO 14443A Sensor Interface Tag
ISO 14443A to SPI Interface Tag IC
Features
- Direct NFC to SPI interface
- 5mA energy harvest
- 106 to 848kbit/s data transfer rate
- Built-in 1kbit high endurance EEPROM (>1Mu write cycles)
Benefits
- Most cost efficient and easiest way to implement NFC
- Power positive, longer battery lifetime, allows batteryless designs
- Fast data transfer for firmware upgrades or data intense applications
- Longest lifetime of EEPROM even in challenging environments
Product parameters
| Frequency [MHz] | 13.56 |
|---|---|
| Protocol | ISO 14443A NFCIP-1 target at 106kbps NFC Forum T4T emulation |
| Supply Voltage [V] | RF field or ext. 1.65 to 3.6 |
| Temperature Range [°C] | -40 to +85 |
| Interface | ISO14443A \ 4-wire SPI (slave) up to 5MHz |
| EEPROM [kbit] | 1 |
| Features | Passive wake-up interrupt Energy harvesting 5mA @ 3.3V |
| Data Rate [kbit/s] | Up to 848 |
| Package | Die, MLPD-10, WL-CSP |
General description
The AS3953 NFiC™ enables all applications to interact with an NFC mobile phone in an instant. It is a fast NFC to SPI interface capable of harvesting field energy up to 5mA.
Not Recommended for New Designs
ams-OSRAM AG is discontinuing production of this device. Final lifetime buy order must be placed by October 29, 2021. Please contact your local sales representative for further information.
This product suits for the following applications:
- Passive wake-up
- Product initialization, service and maintenance
- Multipurpose HF interface to a controller
- ISO 14443A Smart Cards
- Low power or passive programming
- NFC Forum Tag Type 4
- Ultra low power data logger
- Passive wake up
- RFID programmable configuration EEPROM
- Remote sensors
- ISO 14443A smart card
- BT/BLE/Wi-Fi pairing
- NFC Forum Tag Type 4
- Low power data transfer
- Bluetooth and Wi-Fi pairing
Tools
| Title | Category | Headline | Buy |
|---|---|---|---|
| AS3953DemoKitNFiC | Application Board | Demo Kit NFiC for AS3953 | |
| AS3953DemoKitTags | Application Board | Demo Kit Tags for AS3953 |
Technical documents
| Type | Description | Language | ||
|---|---|---|---|---|
| Datasheet | Document version 1-05; AS3953A | English | ||
| Datasheet | Document version 1-04; AS3953B | English | ||
| Product Brief | Product overview AS3953 | English |
Environmental documents
| Type | Description | Language | ||
|---|---|---|---|---|
| Material Declaration Form | MDF_190950009_AS3953A-BDFT | English | ||
| Material Declaration Form | MDF_190950009_AS3953A-BDFM | English |
Notifications
| Type | Description | Language | ||
|---|---|---|---|---|
| EoL Notification | AS1xxx, AS25xx, AS3xxx, AS73211, AS89020, SL900A, TMD4704 (issued 2020-Dec) | English | ||
| EoL Notification | AS3953 (Issued 08-April-2021) | English |
Other information
| Type | Description | Language | ||
|---|---|---|---|---|
| Block Diagram | AS3953 Block Diagram | English | ||
| Factsheet | The Missing Link | English |
Related boards
Demo Kit NFiC for AS3953
AS3953DemoKitNFiC
Please note, the AS3953 antenna demo tag must be used in conjunction with a microcontroller (MCU) and connected via SPI. Consider the below options to start configuring the AS3953 antenna tag.
Options:
- Use the MCU from complete development kit that can be ordered here: www.ams.com/AS3953-DK-TAGS
- Download the development resources and build your own copy of the PIC 24 MCU board included in our development kit.
- Connect the AS3953 NFiC Antenna Tag to any MCU in your existing system. In case a different MCU than PIC24 is being used, the existing firmware of our development kit must be ported.
The complete sources of our AS3953 development kit can be downloaded as a package clicking on "Documents" below.
Please note that ams-OSRAM AG is discontinuing production of AS3953.
Demo Kit Tags for AS3953
AS3953DemoKitTags
The AS3953 Demo Kit TAGS is all what you need to evaluate NFiC solutions. The kit includes near field interface antenna tags, a USB controller board, connectors and related software. The graphical user interface (GUI) enables you to quickly evaluate and get familiar to the AS3953 NFiC. It allows you to read/write the internal EEPROM as well as the configuration of the AS3953. The GUI also makes it possible to interact with an NFC enabled phone. The phone app can be found here: Android NFC, Windows 8
Kit Content:
- AS3953 antenna tags
- USB/SPI interface board
- USB cable
- USB stick with documentation
Please note that ams-OSRAM AG is discontinuing production of AS3953.
Related products
AS3956 NFC Sensor Interface Tag IC
AS3956
AS3956 Dynamic NFC Sensor Tag IC meets industrial-grade quality standards and provides very high reliability in mission-critical applications and in end products with a long operating lifetime.
Thanks to a high sensitivity ISO14443A frontend and high integrated resonance capacitor, AS3956 offers standalone NFC passive tag functionality in a small form factor. The AS3956 dynamic tag acts as a contactless bridge between sensors and any NFC reader, such as a smartphone, through a host microcontroller.
Fast system integration and high speed data transfer are guaranteed by the available SPI and I²C interfaces and by optimized protocols (Tunneling mode and Extended mode), allowing bidirectional communication between the device microcontroller and an external NFC compliant device or ISO14443A reader device. AS3956 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.
Not Recommended for New Designs
ams-OSRAM AG is discontinuing production of this device.
Thanks to a high sensitivity ISO14443A frontend and high integrated resonance capacitor, AS3956 offers standalone NFC passive tag functionality in a small form factor. The AS3956 dynamic tag acts as a contactless bridge between sensors and any NFC reader, such as a smartphone, through a host microcontroller.
Fast system integration and high speed data transfer are guaranteed by the available SPI and I²C interfaces and by optimized protocols (Tunneling mode and Extended mode), allowing bidirectional communication between the device microcontroller and an external NFC compliant device or ISO14443A reader device. AS3956 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.
Not Recommended for New Designs
ams-OSRAM AG is discontinuing production of this device.