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參數(shù)資料
| 型號： | SLE66R35 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | Secure Mobile Solutions |
| 中文描述： | 安全移動解決方案 |
| 文件頁數(shù)： | 6/6頁 |
| 文件大小： | 102K |
| 代理商： | SLE66R35 |
SLE 66R35
Short Product Information
6 / 6
2003-08-07
3
Circuit Description
SLE 66R35 consists of an EEPROM memory of 1 Kbyte organised in 16 sector with 4 blocks each
containing 16 bytes, an analog interface for contactless energy and data transmission and a
control unit. The power supply and data are transferred to SLE 66R35 via an antenna, which
consists of a coil with a few turns directly connected to the chip. No further external components
are necessary. The circuit is designed to communicate with a card-reader at an operating distance
up to 10 cm (or more) depending on the reader-antenna configuration.
Figure 4
Block Diagram
Analog Interface
- Modulator / Demodulator circuit
- Rectifier circuit
- Clock Recovery circuit
- Power on Reset circuit
- Voltage Regulator circuit
Anticollision
Internal logic of SLE 66R35 ensures the recognition of several cards in the field, which may be
selected and operated in sequence.
Authentication Logic
Only after the authentication procedure with specific key, correct execution of any memory
operation is permitted.
Control Logic
Access to a block is defined by the associated access conditions of a block that are
programmed individually for each block in a sector.
Arithmetic Unit / RAM
Arithmetic Capability: Increase and decrease of values stored in a special redundant format.
EEPROM: 1 Kbyte organized in 16 sectors with 4 blocks by 16 bytes each. Last block of each
sector is called "Sector Trailer" and used for a pair of secret keys and programmable access
conditions for each block.
EEPROM
Coil
Analog
Authenti-
cation
Logic
Interface
Control
Logic
EEPROM-
Interface
Arithmetic
Unit
RAM
Anti-
collision
Control Unit
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