AT77C104B_08 Datasheet, PDF (1/46 Pages) ATMEL Corporation – FingerChip Thermal Fingerprint Sweep Sensor, Hardware Based, Navigation and Click Function, SPI Interface

1. Features
• Thermal Sensitive Layer Over a 0.35 µm CMOS Array
• Image Zone: 0.4 × 11.6 mm
• Image Array: 8 × 232 = 1856 pixels
• Pixel Pitch: 50 × 50 µm = 500 dpi Resolution
• Serial Peripheral Interface (SPI) - 2 Modes:
– Fast Mode at 16 Mbps Max for Imaging
– Slow Mode at 200 kbps Max for Navigation and Control
• 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
• Direct PCB integration through High Reliability Snap in Holder
• Comply with the European Directive for Restriction of Hazardous Substances (RoHS
Directive)
2. 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.
3. 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
• Fingerprint Acquisition
Figure 3-1. Packages Available
CB08YV
CB12YI
CB09YV
FingerChip
Thermal
Fingerprint
Sweep Sensor,
Hardware
Based,
Navigation and
Click Function,
SPI Interface
AT77C104B
Note: Not reccomended
for new designs. No longer
supported by Atmel.
5347F-BIOM-3/08