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PDF ML67Q5250 Data sheet ( Hoja de datos )
| Número de pieza | ML67Q5250 | |
| Descripción | DFT Based Fingerprint Authentication LSI | |
| Fabricantes | OKI electronic componets | |
| Logotipo |  |
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OKI Semiconductor
ML67Q5250
DFT Based Fingerprint Authentication LSI
PEDL67Q5250-01
Issue Date: Nov. 9, 2007
Preliminary
GENERAL DESCRIPTION
The ML67Q5250 is a single chip LSI that executes fingerprint authentication without external memory by using
the embedded fingerprint authentication accelerator. This fingerprint authentication accelerator uses DFT(Discrete
Fourier Transform) based algorithm licensed from Precise Biometrics, and supports AuthenTec's slide sensors and
certain touch sensors from several sensor manufacturers. Besides the ML67Q5250 has the secure circuit to protect
enrolled fingerprint data from unauthorized access. Thus this LSI helps customers quickly design new products
that offer convenient security as far as high performance fingerprint authentication, low cost and high level of
security.
FEATURES
• Fingerprint authentication
- DTF (Discrete Fourier Transform) based algorithm licensed from Precise Biometrics
This DFT based algorithm achieves a lower FTE (False To Enrollment rate) and a higher authentication
accuracy especially when a slide sensor is used, as compared to the minutiae algorithm.
- Easy-to-use
The fingerprint authentication is performaed by the fingerprint authentication accelerator, which does not ask
customers for so complicated control.
- No external memory
Customer’s application program and up to 15 fingerprint data can be stored in the embedded Flash memory on
the ML67Q5250. No external memory is required, when a slide sensor is used. External memory is required
when a touch sensor is used.
- High-speed authentication, besides low power consumption
The highly optimized fingerprint authentication accelerator achieves high-speed authentication using a low
speed clock.
Authentication : < 0.8 seconds (1:1 authentication)
< 1.8 seconds (1:15 authentication)
Enrollment : < 2 seconds/finger
- Applicable fingerprint sensor
Slide sensor : AuthenTec AES1510 (128 × 8 pixels)
AuthenTec AES2510 (192 × 16 pixels)
Touch sensor : Any vendor’s touch sensor as far as 256 × 360 pixels max., 8 bits/pixel and 500±8 dpi
• CPU
- 32-bit RISC CPU (ARM7TDMI)
- Little endian format
- Instruction system: A high-density 32-bit instruction and a 16-bit instruction of high-object efficiency, which is
the subset of the 32-bit instruction, can be executed in mixed mode.
- General-purpose register: 32 bits x 31 registers
- Built-in barrel shifter (ALU and barrel shift operation can be executed by one instruction)
- Built-in debugging function (JTAG interface)
The JTAG interface pin is shared with GPIO.
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1 page  
OKI Semiconductor
BLOCK DIAGRAM
Figure 1 shows a block diagram of this LSI.
JTAG
PEDL67Q5250-01
ML67Q5250
ARM7TDMI
rev.3
Embedded
Flash ROM
128 KB
Fingerprint Accelerator
Interrupt
Control
RAM
16KB
DMAC
2ch
Memory
Controller
Peripherals
PLL
System
Timer
SIO
USB
FS
Device
SPI
2ch
GPIO
3 ch
(43 bits)
FTM
3ch
WDT
Smart
Card IF
1ch
SSIO
1ch
RAN
DOM
Figure 1 Block Diagram
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5 Page 
OKI Semiconductor
PEDL67Q5250-01
ML67Q5250
Other Pins (Power supply pins, Unused pins)
Pin name
VDDCORE
GNDCORE
VDDIO
GNDIO
PLLVDD
PLLGND
N.C.
Description
Core power supply
Core GND
Core power supply
Core GND
PLL power supply
PLL GND
Unused pin
Pin No.
C3, L2, L7, K11, F13, B4
C2, M1, L8, K12, D12, C5
E1, J2, N1, N5, N7, N11, H13, E11, C9, C7, C4
F1, J1, L3, M6, K9, M13, G12, D10, A8, B5, B2
E3
D2
G2, H3, B3, D4
Pin count
6
6
11
11
1
1
4
11/36
11 Page | ||
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| PDF Descargar | [ Datasheet ML67Q5250.PDF ] | |
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