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參數(shù)資料
| 型號： | MCRF250 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 125 kHz microID Passive RFID Device with Anti-Collision |
| 中文描述： | 125千赫microID無源RFID設備與反碰撞 |
| 文件頁數(shù)： | 8/24頁 |
| 文件大?。?/td> | 395K |
| 代理商： | MCRF250 |
MCRF250
DS21267F-page 8
2003 Microchip Technology Inc.
3.0
MODES OF OPERATION
The device has two basic modes of operation: Native
Mode and Read Mode.
3.1
Native Mode
Every unprogrammed blank device (CB12 =
0
)
operates in Native mode, regardless of configuration
register settings:
Baud rate = F
CLK
/128, FSK, NRZ_L (direct)
Once the user memory is programmed, the lock bit is
set (CB12 =
1
) which causes the MCRF250 to switch
from Native mode to Communication mode defined by
the configuration register.
Refer to Figure 4-1 for contactless programming
sequence. Also see the
microID
125 kHz RFID
System Design Guide
(DS51115) for more information.
3.2
Read Mode
After the device is programmed (CB12 =
1
), the device
is operated in the Read-only mode. The device
transmits its data according to the protocol in the
configuration register.
FIGURE 3-1:
TYPICAL APPLICATION CIRCUIT
Pad V
B
Pad V
A
Input capacitance: 2 pF
RF Signal
Data
C
To Reader
amplifier/filter
From
Reader
I
AC
L
4.05 mH
390 pF
fres
2
π
LC
-------1
125 kHz
=
=
125 kHz
MCRF250
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相關代理商/技術參數(shù) |
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|---|---|
| MCRF250-I/P | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:125 kHz microID Passive RFID Device with Anti-Collision |
| MCRF250-I/S | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:125 kHz microID Passive RFID Device with Anti-Collision |
| MCRF250-I/SN | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:125 kHz microID Passive RFID Device with Anti-Collision |
| MCRF250-I/W | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:125 kHz microID Passive RFID Device with Anti-Collision |
| MCRF250-I/W40A | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:125 kHz microID Passive RFID Device with Anti-Collision |
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