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參數(shù)資料
| 型號： | CXD4000R |
| 英文描述： | Fingerprint Verification System LSI |
| 中文描述： | 指紋識別系統(tǒng)LSI |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 216K |
| 代理商： | CXD4000R |
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E01664-PS
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
CXD4000R
120 pin LQFP (Plastic)
Fingerprint Verification System LSI
Description
The CXD4000R is an IC that inputs the signal from
a Sony fingerprint sensor and performs fingerprint
verification.
This chip integrates a CPU, A/D converter, DRAM,
USB controller and other circuits.
Features
Combination with a Sony fingerprint sensor and a
flash memory realizes a fingerprint verification
system with a 3-chip configuration
16-bit microcomputer SPC970
USB controller (conforms to Rev 1.1)
Fingerprint Verification Block
Adoption of Sony's original verification algorithm
also provides excellent results for blurred and
deformed fingerprints
False rejection ratio: 1% or less, false acceptance
ratio: 0.1% or less (with 2 trials)
Verification time per finger: approximately 40ms
(Clock frequency: 48MHz, excluding fingerprint
image loading time)
Microcomputer Block
CPU: SPC970 series 16-bit CPU core
Internal RAM: 4K bytes
External flash memory: 16-bit, 2M bytes
External expansion SRAM: 8-bit/16-bit, 2M bytes
each
General purpose register: 16 bits
×
8 lines
×
32
banks
Processing rate: 41.6ns (f
SYS
: 24MHz)
Peripheral hardware
Serial interface
×
1 channel
(Clock synchronous serial interface or
asynchronous serial interface)
16-bit timer
×
4 channels
External memory interface
8-bit A/D converter (also used as sensor input)
8-bit D/A converter
×
1 channel
General-purpose I/O: 12 (also used as interrupt
inputs, etc.)
USB Controller
Conforms to Rev 1.1
USB transceiver circuit
Supports full-speed (12Mbps)
Applications
Fingerprint verification units (stand-alone)
Cellular phones
Personal computers
Structure
Silicon gate CMOS IC
Absolute Maximum Ratings
Supply voltage
Input voltage
Output voltage
Storage temperature
V
DD
V
I
V
O
V
SS
– 0.5 to +4.6
V
SS
– 0.5 to V
DD
+ 0.5
V
SS
– 0.5 to V
DD
+ 0.5
V
V
V
Tstg
–55 to +150
°C
Recommended Operating Conditions
Supply voltage
V
DD
Input voltage
V
I
Output voltage
V
O
Operating temperature
Topr
3.0 to 3.6
V
SS
to V
DD
V
SS
to V
DD
V
V
V
0 to +70
°C
I/O Pin Capacitance
Input pin capacitance
Output pin capacitance C
O
I/O pin capacitance
Note)
Measurement conditions: V
DD
= V
I
= 0V,
C
I
9 (max.)
11 (max.)
11 (max.)
pF
pF
pF
C
I/O
f = 1MHz
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