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| CY7C604-33GC资料 | |
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CY7C604-33GC PDF Download |
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File Size : 116 KB
Manufacturer:CYPRESS Description:• Learn C Learning involves the receiver calculating the transmitters appropriate crypt key, decrypting the received hopping code and storing the serial number, synchronization counter value and crypt key in EEPROM (Section 6.1). The KEELOQ prod- uct family facilitates several learning strategies to be implemented on the decoder. The following are examples of what can be done. - Simple Learning The receiver uses a fixed crypt key, common to all components of all systems by the same manufacturer, to decrypt the received code words encrypted portion. - Normal Learning The receiver uses information transmitted during normal operation to derive the crypt key and decrypt the received code words encrypted portion. - Secure Learn The transmitter is activated through a special button combination to transmit a stored 60-bit seed value used to generate the transmitters crypt key. The receiver uses this seed value to derive the same crypt key and decrypt the received code words encrypted portion. • Manufacturers code - A unique and secret 64- bit number used to generate unique encoder crypt keys. Each encoder is programmed with a crypt key that is a function of the manufacturers code. Each decoder is programmed with the manufac- turer code itself. • Anticollision - A scheme whereby transponders in the same field can be addressed individually preventing simultaneous response to a command (Section 4.3.1). • IFF - Identify Friend or Foe (Section 1.2). • Proximity Activation - A method whereby an encoder automatically initiates a transmission in response to detecting an inductive field (Section 4.4.1). • Transport code - An access code, password known only by the manufacturer, allowing pro- gram access to certain secure device memory areas (Section 4.3.3). • AGC - Automatic Gain Control. |
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| 1PCS | 100PCS | 1K | 10K | ||
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型 号：CY7C604-33GC 厂 家：CYPRESS 封 装：PGA 批 号：05+/06+ 数 量：285 说 明：专营军工实存 |
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运 费：20 所在地：深圳市 新旧程度： |
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