Electronics Technology


Single module for fingerprint recognition and on-screen navigation

25 September 2002 Electronics Technology

Designed for a wide range of mobile equipment including compact third-generation wireless terminals, PDAs and portable PCs, the STMicroelectronics SmartFinger module combines fingerprint recognition and on-screen navigation functions in a single ready-to-use unit. This saves space and reduces product development time.

SmartFinger combines linear AC-capacitative fingerprint sensor technology licensed from Idex ASA, with ST's integrated circuit technology to provide both scan-type fingerprint access control and pointer operation. It eliminates the need for a mechanical roller to implement on-screen point-and-click navigation features. ST has an exclusive licence with Idex for this technology.

The silicon sensor used is the linear type where a finger is simply swept over the sensor to scan the whole fingerprint area. This approach not only significantly reduces the size of the silicon sensor, and hence cost, but also reduces the overall size of the module.

The software functions for authentication and navigation of SmartFinger are within the processing power of the ARM7 and ARM9 cores widely used in mobile terminal design. ST has licences for a broad range of ARM cores which can be integrated in system-on-chip designs.

Module data

* Module size: 15 x 7 mm.

* Image resolution: 500 dpi.

* Operating voltage: analog 2,5 V, digital 1,5 V.

* ESD resistance: >15 kV.

* Operating temperature range: -20 to 70°C.

* Consumption: 40 mA peak.

For more information contact Avnet Kopp, (011) 809 6100, sales@avnet.co.za, www.avnet.co.za



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Smallest automotive maXTouch controllers
29 July 2020, Altron Arrow, Avnet South Africa , DSP, Micros & Memory
To help enhance and ease today’s driving experience, automotive manufacturers are implementing additional touch displays beyond the centre infotainment display (CID). Supporting the application of these ...

Read more...
3 kW TVS diode arrays
30 June 2020, Avnet South Africa , Circuit & System Protection
To ensure critical operations, aviation and space systems rely on digital and logic functionality and circuitry in engine control units, environmental controls, instruments and actuators. Data centres, ...

Read more...
PCIe Gen 4 switches
30 June 2020, Avnet South Africa , Computer/Embedded Technology
To support cloud, data centre and hyperscale computing that facilitates advancements in artificial intelligence (AI) and machine learning (ML), Microchip Technology released to production its Switchtec ...

Read more...
DIN-rail mounting DC-DC converters
30 June 2020, Avnet South Africa , Power Electronics / Power Management
Shortly after unveiling the brand-new DIN-rail mounting DC-DC converter family, the DDR-15/30/60/120/240 series, Mean Well has announced the DDR-480 series (480 W) to enable integration into higher-power ...

Read more...
Wi-Fi and BLE combo module
29 May 2020, Avnet South Africa , Telecoms, Datacoms, Wireless, IoT
Dialog Semiconductor announced the DA16600, a module that combines its advanced Wi-Fi and BLE (Bluetooth Low Energy) capabilities into a single solution. This two-in-one module is comprised of two ...

Read more...
HV MOSFET for ruggedness, smart PWM controller for flexibility
30 June 2020, Avnet South Africa , Power Electronics / Power Management
As the world recently celebrated Earth Day, STMicroelectronics’ blog recently featured one of its many components that help better manage the electricity people consume every day and therefore, decided ...

Read more...
Why ‘new space’ satellites demand a new approach to components
29 May 2020, Avnet South Africa , News
New space is opening up exciting opportunities for businesses, which can create completely new products, services and capabilities that were, until recently, impossible or impractical.

Read more...
The top benefits of MEMS timing
29 May 2020, Avnet South Africa , Analogue, Mixed Signal, LSI
MEMS (micro electromechanical systems), designed to resonate and generate clocks signals, may not dominate the world of timing applications right now, but the technology’s popularity is growing. Competing ...

Read more...
Microcontrollers for functional safety
29 May 2020, Avnet South Africa , DSP, Micros & Memory
As the Internet of Things (IoT) delivers greater connectivity for industrial and home applications and as connected vehicles enhance cabin and operational features, higher-performance microcontrollers ...

Read more...
Enabling cloud connectivity to all Microchip MCUs and MPUs
25 March 2020, Avnet South Africa , DSP, Micros & Memory
Due to the fragmented nature of the Internet of Things (IoT) marketplace, increasing project complexity and costs, today’s developers face more challenges in design decisions than ever before. These challenges ...

Read more...