AT77SM0101BCB02VEK [ATMEL]
FingerCHIP BIOMETRIC MODULE; 的FingerChip的生物统计模块
| 型号： | AT77SM0101BCB02VEK |
| 厂家： | 
ATMEL |
| 描述： | FingerCHIP BIOMETRIC MODULE |
| 文件： | 总15页 (文件大小：335K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Features
• Module Size: 55 x 72 mm (Smaller than Smart Card)
• Microcontroller: Atmel ARM9®-based AT91RM9200
• SDRAM: 128 Mbits
• Flash: Atmel DataFlash® 32 Mbits
• Fingerprint Sensor: Atmel FingerChip® AT77C101B-CB02V
• Operating Temperature Range: -30°C to +65°C
• Operating Voltage: 3.3V 10%
• Power Consumption: 200 mA in Typical Conditions
• Operating System: Linux® (Kernel 2.4.19)
FingerChip®
Biometric
Module
• Available interfaces on Extension Connector:
– Drivers Provided for SPI, Ethernet, Serial DBGU
– Drivers not Provided for USB Host and Device, TWI, RS-485, IrDA,
SmartCard, MMC/SD Card, SSC, RTC, JTAG…
• Software Suite with Embedded Pre-loaded Bio-engine
Description
AT77SM0101BCB02VKE
This document describes the specifications of Atmel's AT77SM0101BCB02VKE Fin-
gerChip biometric module. Based on Atmel's FingerChip fingerprint sensor, ARM9
microcontroller and flash memory, the AT77SM0101BCB02VKE provides the main
biometric functions such as user enrollment, authentication and identification in a
packaged module, making it easy to integrate into a final system.
The AT77SM0101BCB02VKE is particularly well-suited to Physical Access Control,
Point of Sale devices, Time and Attendance or Vending Machines.
The AT77SM0101BCB02VKE provides great flexibility because of its memory capac-
ity and powerful microcontroller loaded with the Linux operating system, and features
many possible interfaces, including Ethernet. The AT77SM0101BCB02VKE biometric
module requires the purchase of the Evaluation/Development Kit
AT77SM0101BCB02VEK to develop the user interface of the final application.
Applications
•
•
•
•
•
•
•
Physical Access Control
Time and Attendance Systems
Automated Teller Machines, Points of Sale
Vending Machines
Smart Homes
Locks, Safes
Reference Design for ARM9 and FingerChip Design Development
Figure 1. FingerChip Biometric Module AT77SM0101BCB02VKE
5391A–BIOM–09/04
Functional
Description
The AT77SM0101BCB02VKE is a biometric sub-system based on Atmel’s FingerChip
fingerprint sensor. It comprises a fingerprint sensor connected to a board that embeds
processing capabilities through an ARM9-based AT91RM9200 microprocessor, and
memory to store the software and fingerprint templates.
The biometric module must be connected to a motherboard for power supplies and
interface connections. Connection to the motherboard is achieved through two standard
connectors located on the sides of the module board.
The module is loaded with a Linux operating system, an Atmel driver for the FingerChip
sensor, and by default, authentication software (biometric library) for extraction of finger-
print characteristics and comparison with enrolled templates (also called bio-engine).
The standalone module can perform the following:
•
Enrollment: an operation where the end-user scans his fingerprint by sweeping it
across the FingerChip sensor, providing a fingerprint signature reference (template)
•
Authentication: accurate matching of the newly acquired fingerprint against the
template stored in the board’s memory during the enrollment procedure, used to
validate user authentication
•
Identification: matching of the fingerprint image against the correct template within a
database of previously acquired templates
These three functions can then be used in any application requiring authentication to
grant rights to a user, or to change criteria of the user’s profile. Examples of typical
applications might include physical access control or time and attendance monitoring.
The AT77SM0101BCB02VEK Evaluation Kit provides all the tools necessary for easy
development of a customized application using the biometric module APIs.
The AT77SM0101BCB02VKE biometric module lets you add convenient and secured
user authentication to your products in a surprisingly reduced development time.
Figure 2. AT77SM0101BCB02VKE Block Diagram
Motherboard
3.3V
Linear
Regulator
Connectors
GPIOS Interfaces
3.3V
1.8V
32-bit
Data Bus
SPI
SDRAM
16 MB
Flash
4 MB
AT91RM9200
Control
8 Bits
AT77C101B-CB02V
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AT77SM0101BCB02VKE
Technical
Description
Atmel’s FingerChip biometric module includes the AT77C101B-CB02V FingerChip sen-
sor (8-bit parallel interface) connected through a flex cable to the module itself.
Module Size and Length The board size of the module is 55 mm x 72 mm. It has three screw holes for easy fixing
to the motherboard or casing of the final system.
of Flex
The flexible cable is 5 cm long. It is a single straight cable made of copper.
Figure 3. AT77SM0101BCB02VKE Board Dimensions
55 mm
50 mm
26.6 mm
72 mm
9.85 mm
The dimensions of the sensor are 26.6 mm x 9.85 mm x 2.6 mm for the PCB. The die
size is 1.7 mm x 17.3 mm.
Description of
Figure 4. Motherboard Interface
Motherboard Interface
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Table 1. J1 Pin Description
Pin
1
Description
Pin
2
Description
3V3
GND
3
NBS3
4
NBS1
5
PC10
6
NRD_NOE_NCFOE
NWR0_NWE_NCFWE
NCS3_NSMCS
PC15*
7
PC11
8
9
PC12
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
PC14*
PC1
PC0*
PC2
PC3
PC4
PC5
PC6
PA15/EMDC
PA16/EMDIO
PA17/TXD0
PA18/RXD0
PA19/SCK0
PA20/CTS0
PA21/RTS0
PA22
PA0/MISO
PA1/MOSI
PA2/SPCK
PA4/NPCS1
PA5/NPCS2
PA6/NPCS3
PA7/EREFCK
PA8/ETXEN
PA9/ETX0
PA10/ETX1
PA11/ECRSDV
PA12/ERX0
PA13/ERX1
PA14/ERXER
3V3
PA23/IRQ3
PA24
PA25/TWD
PA26/TWCK
PA29
PA28
PA27
GND
Note:
Pins 11, 12 and 14: do not use when the AT77C101B is connected to the module.
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AT77SM0101BCB02VKE
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AT77SM0101BCB02VKE
Table 2. J2 Pin Description
Pin
1
Description
Pin
2
Description
3V3
GND
PB22
PB19
PB18
PB17
PB16
PB15
PB14
PB13
PB12
PB11
PB10
PB9
3
4
PC9
5
6
PC8
7
8
PC7
9
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
DDP
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
DDM
HDPA
HDMA
PB29/IRQ0
PB28/FIQ
PB27
PB26
PB25
PB8
PB24
PB7
PB23
PB6
NRST
NTRST
TMS
PB5
PB4
PB3
TCK
PB2
TDO
PB1
TDI
PB0
JTAGSEL
PB21
PA31
PA30
3V3
PB20
GND
The pins are used to connect the following interfaces:
•
•
•
•
•
•
•
USB device: pins 10 and 12 of J2 connector
USB host: pins 14 and 16 of J2 connector
TWI: pins 40 and 42 of J1 connector
JTAG: pins 32, 34, 36, 38, 40, 42 and 44 of J2 connector
SPI: pins 21, 23, 25, 27, 29 and 31 of J1 connector
Two serial links: RS-232, RS-485, IrDA and/or Smart Card
Ethernet or MMC/SD card
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Board’s Main
Components
ARM9-based AT91RM9200
Microcontroller
The AT91RM9200 microcontroller features the following:
•
•
•
•
•
•
•
•
200 MIPS capability
16 KB data cache
16 KB instruction cache
16 KB SRAM
ROM boot
Ethernet MAC
USB 2.0 full-speed host and device
USART, DMA, TWI, SPI, SSC, MCI
The ARM9 operates at 200 MHz on the module.
Memory
The AT77SM0101BCB02VKE biometric module features:
•
128 Mbits (16 Mbytes) of SDRAM on a 32-bit parallel data bus interface operating at
66 MHz
•
32 Mbits (4 Mbytes) of Atmel DataFlash on an SPI bus operating at 10 MHz
AT77C101B-CB02V Sensor
The sensor has the following characteristics:
•
•
•
•
•
•
•
•
A sensitive layer over a 0.8 µm CMOS array
An image zone of 0.4 × 14 mm, equalling 0.02 in. × 0.55 in.
An image array of 8 × 280, equalling 2240 pixels
A pixel pitch of 50 µm × 50 µm, equalling 500 dots-per-inch resolution
A pixel clock of up to 2 MHz with a capacity of up to 1780 frames per second
A die size of 1.7 × 17.3 mm
An operating voltage range of 3V to 5.5V
A natural protection from electrostatic discharge (ESD) up to 16 kV of air discharge.
Use of metal casing or metalized plastic in the final application is strongly
recommended
•
•
•
A power consumption of 20 mW at 3.3V, 1 MHz, 25°C
An operating temperature range of -40°C to +85°C
A strong resistance to abrasion with the capability to withstand over 1 million finger
sweeps
•
•
A sweep speed ranging from 2 cm/s to 20 cm/s
A low power consumption of 6 mA typical in acquisition mode and 10 µA in standby
mode
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AT77SM0101BCB02VKE
5391A–BIOM–09/04
AT77SM0101BCB02VKE
Storage Capacity
Figure 5. RAM Memory Mapping
16 MB RAM
Used by Ramdisk
Used by Kernel
Free
6 MB
Figure 6. DataFlash Memory Mapping
16 kB
4 MB
4.5 MB
1.5 MB
4 MB DataFlash
Compressed
Kernel
Compressed Ramdisk
AT77SM0101BCB02VKE Compressed Ramdisk < 2 MB
700 kB
300 kB
3 MB
Biometric Performances The device’s biometric performances are characterized by the following:
•
•
•
•
•
•
•
•
An image size of 500 × 400
256 levels of grey
A finger swiping speed from 2 to 15 cm/s
An FRR under 3% at an FAR 10-4 rate using an IKENDI® algorithm
An authentication time of under 10 ms
A biometric template size of 384 bytes
An authentication algorithm size of 420 kbytes
An identification time of under 1 second for 50 templates
Software
Operating System
Driver Modules
The biometric module comes preloaded with the Linux operating system (kernel 2.4.19
rmk 7). The kernel includes:
•
•
•
•
•
Ramdisk support
A serial port driver supporting DBGU and up to four UARTs
An SPI driver
Ethernet layers 10/100 Mbits (compatible with MII protocol)
Watchdog support
Further information can be retrieved at http://www.arm.linux.org.uk.
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5391A–BIOM–09/04
Two drivers are provided as modules that can be loaded or unloaded during runtime.
These are:
•
The FingerChip driver: FingerChip_mod.o, version 2.0 enabling on-the-fly
reconstruction of images
•
A GPIOs driver: Leds_mod.o, version 2.0, used to drive switches, LEDS etc.
Environmental Specifications
Operating Conditions
Absolute Maximum Ratings*
*NOTICE:
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating 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.
Power Supply Voltage (VCC) ................................-0.3V to 4.6V
Storage Temperature (Tstg)............................. -40°C to +85° C
Recommended Conditions of Use
Parameter
Symbol
VCC
Comments
Min
Typ
3.3
Max
Unit
V
Positive supply voltage
Operating temperature range
3.3V 10%
3
3.6
Tamb
Telecom: “T grade”
-30°C to +65°C
°C
Sensor Resistance
Min Value
16 kV
Standard Method
NF EN 6100-4-2
MIL E 12397B
ESD
Air discharge on die surface (Zap gun), sensor included in casing
Mechanical Abrasion
Number of cycles without lubricant
200,000
[a multiplication by a factor of 20 should be applied for correlation with a real finger]
Chemical Resistance
Cleaning agents, acid, grease, alcohol, diluted acetone
4 hours
Internal method
Note:
Resistance characteristics are given for the sensor only.
Electrical Characteristics
Parameter
Symbol
Comments
Min
Typ
Max
Unit
mA
Current on VCC
ICC
3.3V 10%
200
300
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AT77SM0101BCB02VKE
Module Integration
Mechanics
The size of the board and the flex cable make integrating the standalone module into the
final product simple and convenient. In addition, the module can be fixed to the main
board or the casing using three screws.
Fingerprint Sensor
Atmel recommends fixing the sensor by inserting it into the casing’s groove. Care should
be given to ensuring that:
•
•
The casing provides sufficient aeration
The board is implemented vertically with the flex connector outputs oriented
downwards
•
The sensor is protected from direct exposure to rain when used outdoors
Connection of the Module
Board to the Motherboard
The standalone module board measures 55 mm by 72 mm. It has three screw holes for
easy fixing to the motherboard or casing of the final system. Connection to the mother-
board is achieved through two connectors each comprising 2 x 25 pins, which are
located on the sides of the module board. The height of the components under the mod-
ule must not exceed 5 mm.
Figure 7. Module Board Mechanical Data
72 mm
11.6 mm
Component Side
4.5 mm
Solder Side
1
2
1
2
ATMEL
55 mm
49
50
49
50
3 mm
J2
J1
5.5 mm
56.00
56.00
8.00
8.00
9
5391A–BIOM–09/04
Electrical Integration
The motherboard must at least provide power supplies and the required components in
order to implement the desired interfaces. Atmel recommends using a linear power sup-
ply of 3.3V to power the standalone module.
An example of a possible implementation is given in the Development Kit documenta-
tion (this kit can be ordered through your local Atmel distributor). Reading this
documentation is strongly recommended to proceed with accurate programming of the
board application.
10
AT77SM0101BCB02VKE
5391A–BIOM–09/04
AT77SM0101BCB02VKE
Evaluation and Development Kit
Figure 8. AT77SM0101BCB02VEK
AT77SM0101BCB02VEK This kit includes:
Content
•
•
•
•
•
•
A demo kit board with an integrated biometric module
A power supply with adapters for international power outlets
A crossed Ethernet cable
A serial cable
A "Quick Start" guide
A CD-ROM comprising all the necessary tools and documentation
Authentication Software The Development Kit includes a complete software SDK for easy access to the Finger-
Chip’s hardware (image capture). This SDK also allows the user to control the bio-
engine (authentication software) and manage the database through high-level functions.
and SDK
The authentication software is directly preloaded onto the module. The SDK also
includes a communication protocol to control the module from a PC.
11
5391A–BIOM–09/04
Stack Schematics
Figure 9. Stack Schematics
Module Board
Embedded Application
Atmel SDK
FingerChip Lib
Bio-engine Lib
DB Lib
Ethernet
Layers
USB
Driver
Serial
Driver
GPIOs
Driver
FingerChip Driver
J1 and J2
Extension Connectors
AT77C101B
Fingerprint Sensor
The fingerprint acquisition channel runs through Atmel's SDK
Enrollment, verification and identification through the bio-engine but controlled
by Atmel's SDK
Database manipulation is achieved through Atmel's SDK or directly through
the bio-engine
Generic communication with the outside world is controlled via GPIOs,
the Ethernet or USB port or serial link for which drivers are available and
directly accessible from the application layer
Static drivers
Dynamic drivers
12
AT77SM0101BCB02VKE
5391A–BIOM–09/04
AT77SM0101BCB02VKE
Packaging
Mechanical Data
Figure 10. Product Reference AT77C101B-CB02V
All dimensions in mm
9.85 0.3
5.2 max
5.9 max
+0.04
14.35
-0.01
4.1 0.2
8.9 0.5
FLEX OUTPUT
8.8 0.2
2.9 0.5
+0.33
0.75
-0.25
1.25 0.5
2.39 0.5
BB Section
0.2 min
26.6 0.3
+0.08
(x 3)
R0.75
-0.12
B
B
FLEX OUTPUT
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5391A–BIOM–09/04
Ordering Information The standalone module is available in Europe through Atmel distributors.
Two references are available for the module:
•
•
AT77SM0101BCB02VKE (includes IKENDI bio-engine license)
AT77SM0101BCB02VBS (includes Bioscrypt Inc. bio-engine license)
The Development Kit (reference AT77SM0101BCB02VEK) is also available in Europe
through Atmel’s distributors.
Naming Convention
Figure 11. Naming Convention
101B
AT77SM0
CB02
xx
V
Atmel prefix
Bio-engine/Evaluation Kit:
KE: IKENDI Bio-engine
BS: Bioscrypt Bio-engine
EK: Evaluation Kit
FingerChip Biometric Module Family
FingerChip Sensor Type
Package
CB02: Chip On Board (COB)
with connector
Sensor temperature range
V: -40o C to +85o C
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AT77SM0101BCB02VKE
5391A–BIOM–09/04
Atmel Corporation
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Disclaimer: Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard
warranty which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The Company assumes no responsibility for any
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© Atmel Corporation 2004. All rights reserved. Atmel® and combinations thereof, DataFlash® and FingerChip® are the registered trademarks
of Atmel Corporation or its subsidiaries. ARM® and ARM9® are the registered trademarks of ARM Ltd. Linux® is the registered trademark of
Linus Torvalds. Bioscrypt® is the registered trademark of Bioscrypt Inc. IKENDI® is the registered trademark of IKENDI Software AG. Other
terms and product names may be the trademarks of others.
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5391A–BIOM–09/04
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