Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

AT77C102B Datasheet(PDF) 5 Page - ATMEL Corporation

Part No. AT77C102B
Description  Thermal Fingerprint Sensor with 0.4 mm x 14 mm (0.02 x 0.55) Sensing Area and Digital Output (On-chip ADC)
Download  19 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
Logo 

AT77C102B Datasheet(HTML) 5 Page - ATMEL Corporation

 
Zoom Inzoom in Zoom Outzoom out
 5 / 19 page
background image
5
5364A–BIOM–09/05
AT77C102B
3.
Description
The AT77C102B is part of the Atmel FingerChip monolithic fingerprint sensor family for which no
optics, no prism and no light source are required.
The AT77C102B is a single-chip, high-performance, low-cost sensor based on temperature
physical effects for fingerprint sensing.
The AT77C102B has a linear shape, which captures a fingerprint image by sweeping the finger
across the sensing area. After capturing several images, Atmel proprietary software can recon-
struct a full 8-bit fingerprint image.
The AT77C102B has a small surface combined with CMOS technology, and a Chip-on-Board
package assembly. These facts contribute to a low-cost device.
The device delivers a programmable number of images per second, while an integrated analog-
to-digital converter delivers a digital signal adapted to interfaces such as an EPP parallel port, a
USB microcontroller or directly to microprocessors. No frame grabber or glue interface is there-
fore necessary to send the frames. These facts make AT77C102B an easy device to include in
any system for identification or verification applications.
Table 3-1.
Absolute Maximum Ratings
()
Parameter
Symbol
Comments
Value
Positive supply voltage
V
CC
GND to 4.6
Note: Stresses beyond those listed
under “Absolute Maximum Ratings”
may cause permanent damage to the
device. These are stress ratings only
and functional operation of the device at
these or any other conditions beyond
those indicated in the operational
sections of this specification is not
implied. Exposure to absolute
maximum rating conditions for extended
periods may affect device reliability.
Temperature stabilization
power
TPP
GND to 4.6
Front plane
FPL
GND to V
CC +0.5
Digital input voltage
RST PCLK
GND to VCC +0.5
Storage temperature
T
stg
-50 to +95
Lead temperature
(soldering, 10 seconds)
T
leads
Do not solder
Forbidden
Table 3-2.
Recommended Conditions Of Use
Parameter
Symbol
Comments
Min
Typ
Max
Unit
Positive supply voltage
VCC
3V
3.3V
3.6V
V
Front plane
FPL
Must be grounded
GND
V
Digital input voltage
CMOS levels
V
Digital output voltage
CMOS levels
V
Digital load
C
L
50
pF
Analog load
C
A
R
A
Not connected
pF
k
Operating temperature range
Tamb
V grade
-40
°C to +85°C°C
Maximum current on TPP
ITPP
0
100
mA


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn