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參數(shù)資料
| 型號： | H4005 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | ISO 11 784 / 11 785 COMPLIANT READ ONLY CONTACTLESS IDENTIFICATION DEVICE |
| 中文描述： | 標(biāo)準(zhǔn)1111分之784785順從只讀接觸式識別裝置 |
| 文件頁數(shù)： | 5/6頁 |
| 文件大小： | 137K |
| 代理商： | H4005 |
Memory organisation
The structure of the 128 bits is as follows :
The
header
is sent first and is used to identify the start of the sequence. It is composed of 11 bits having a bit pattern which is
unique in the data stream.
00000000001
The header is followed by the
Identification code
which is composed of 64 bits organised in 8 blocks of 8 bits. Each block of
8 bits is trailed by a control bit set to logic "1" to prevent that the header is reproduced in the data. Bit 64 is transmitted first.
Bit 1 is a flag for animal "1" or non-animal "0" application.
Bits 2-15 are a reserved code for future use.
Bit 16 is a flag for additional data block "1" or no additional data block "0".
Bits 17-26 ISO 3166 Numeric country code
Bits 27-64 National identification code
The next two 8 bit blocks contain the
16 CRC-CCITT
error detection bits. LSB is transmitted first, and the 2 block are trailed
with with a binary "1".
The data stream with 3 blocks of 8 bits trailed with a logical "1" representing the
extension bits
. The extension bits are
planned for future extension in which for instance information from sensors or contents of trailing pages may be stored. In the
current version the standard coding will be
000000001 000000001 000000001
and the flag bit 16 of the identification code
"0".
Resonance Capacitor
The Resonance Capacitor is integrated, and its value is typically 75 pF.
5
Table 5
Pad
Name
COIL2
COIL1
VDD
VSS
1
2
3
4
Function
Coil Terminal 2 / Data output
Coil Terminal 1 / Clock input
Positive Internal Supply Voltage
Negative Internal Supply Voltage
Pad Description
1
2
3
4
Fig. 6
Typical Capacitor Variation
versus Temperature
Temperature [°C]
99.7
99.8
99.9
100.0
100.1
100.2
100.3
-50
-30
-10
10
30
50
70
90
Cr Tolerance [%]
100.7
H4005
EM MICROELECTRONIC-MARIN SA
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