AT77C104B

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


Application

•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


Pinout




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 AT77C 104B 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.