HCS300-I/SN
数据手册.pdfMICROCHIP HCS300-I/SN 芯片, 跳码编码器, KEELOQ, SOIC8
The is a Code Hopping Encoder designed for secure remote keyless entry RKE systems. The HCS300 utilizes patented KEELOQ® hopping technology incorporates high security to make this device a perfect solution for unidirectional remote keyless entry systems and access control systems. The HCS300 combines a 32-bit hopping code generated by a non-linear encryption algorithm with a 28-bit serial number and 6 status bits to create a 66-bit transmission stream. The length of the transmission eliminates the threat of code scanning and the code hopping mechanism makes each transmission unique, thus rendering code capture and re-send code grabbing schemes useless. The encryption key, serial number and configuration data are stored in EEPROM, which is not accessible via any external connection. This makes the HCS300 a very secure unit.
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- Programmable 28-bit serial number
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- Programmable 64-bit encryption key
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- Each transmission is unique
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- 66-bit transmission code length
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- 32-bit hopping code
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- 28-bit Serial number, 4-bit button code, 2-bit status
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- Crypt keys are read protected
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- Four button inputs
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- No additional circuitry required
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- 15 functions
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- Selectable baud rate
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- Automatic code word completion
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- Low battery signal transmitted to receiver
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- Non-volatile synchronization data
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- Easy-to-use programming interface
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- On-chip EEPROM
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- On-chip oscillator and timing components
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- Button inputs have internal pull-down resistors
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- Current limiting on LED output
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- Low external component cost
ESD sensitive device, take proper precaution while handling the device.