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AT77C104B

Description
FingerChip Thermal Fingerprint Sweep Sensor, Hardware Based, Navigation and Click Function, SPI Interface
File Size260KB,36 Pages
ManufacturerAtmel (Microchip)
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AT77C104B Overview

FingerChip Thermal Fingerprint Sweep Sensor, Hardware Based, Navigation and Click Function, SPI Interface

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
FingerChip
®
Thermal
Fingerprint
Sweep Sensor,
Hardware
Based,
Navigation and
Click Function,
SPI Interface
AT77C104B
Chip-on-board Package
Sweep your finger
to make life easier
Actual size of sensor
5347B–BIOM–08/04

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AT77C104B AT77C104BCB08V
Description FingerChip Thermal Fingerprint Sweep Sensor, Hardware Based, Navigation and Click Function, SPI Interface FingerChip Thermal Fingerprint Sweep Sensor, Hardware Based, Navigation and Click Function, SPI Interface
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