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HCS500T-I/P датащи(PDF) 4 Page - Microchip Technology |
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HCS500T-I/P датащи(HTML) 4 Page - Microchip Technology |
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4 / 34 page ![]() HCS500 DS40153C-page 4 © 2002 Microchip Technology Inc. FIGURE 1-3: BASIC OPERATION OF RECEIVER (DECODER) Note: Circled numbers indicate the order of execution. 2.0 PIN ASSIGNMENT Button Press Information EEPROM Array Manufacturer Code 32 Bits of Encrypted Data Serial Number Received Information Decrypted Synchronization Counter Check for Match Sync Counter Serial Number KEELOQ Decryption Algorithm 1 3 4 Check for Match 2 Perform Function Indicated by button press 5 Crypt Key PIN Decoder Function I/O(1) Buffer Type(1) Description 1VDD P — Power Connection 2 EE_CLK OTTL Clock to I 2C™ EEPROM 3 EE_DAT I/O TTL Data to I2C EEPROM 4MCLR I ST Master clear input 5 S_DAT I/O TTL Synchronous data from controller 6 S_CLK I TTL Synchronous clock from controller 7 RFIN I TTL RF input from receiver 8GND P — Ground connection Note: P = power, I = in, O = out, and ST = Schmitt Trigger input. |
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