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AT77C104B Datasheet(PDF) 1 Page - ATMEL Corporation |
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AT77C104B Datasheet(HTML) 1 Page - ATMEL Corporation |
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1 / 36 page  5347B–BIOM–08/04 Features • Thermal Sensitive Layer Over a 0.35 µm CMOS Array • Image Zone: 0.4 x 11.6 mm • Image Array: 8 × 232 = 1856 Pixels • Pixel Pitch: 50 × 50 µm = 500 dpi Resolution • On-chip 8-bit Analog to Digital Converter • Serial Peripheral Interface (SPI) - 2 Modes: – Fast Mode at 16 Mbps Max for Imaging – Slow Mode at 200 kbps Max for Navigation and Control • Die Size: 1.5 × 15 mm • Operating Voltage: 2.3 to 3.6V • Operating Temperature Range: -40 ° C to 85° C • Finger Sweeping Speed from 2 to 20 cm/Second • Low Power: 4.5 mA (Image Acquisition), 1.5 mA (Navigation), <10 µA (Sleep Mode) • Hard Protective Coating (>4 Million Sweeps) • High Protection from Electrostatic Discharge • Small Form Factor Packaging Description This document describes the specifications of Atmel’s AT77C104B fingerprint sensor dedicated to PDA, cellular and smartphone applications. Based on FingerChip ther- mal technology, the AT77C104B is a linear sensor that captures fingerprint images by sweeping the finger over the sensing area. This product embeds true hardware-based 8-way navigation and click functions. Applications • Scrolling, Menu and Item Selection for PDAs, Cellular or Smartphone Applications • Cellular and Smartphones-based Security (Device Protection, Network and ISP Access, E-commerce) • Personal Digital Agenda (PDA) Access • User Authentication for Private and Confidential Data Access • Portable Fingerprint Acquisition Chip-on-board Package Actual size of sensor FingerChip® Thermal Fingerprint Sweep Sensor, Hardware Based, Navigation and Click Function, SPI Interface AT77C104B Sweep your finger to make life easier |
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