RFHCS362F-I/SO View Datasheet(PDF) - Microchip Technology
Part Name
Description
MFG CO.
'RFHCS362F-I/SO' PDF : 54 Pages View PDF
rfHCS362G/362F
FIGURE 1-3:
BUILDING THE TRANSMITTED CODE WORD (ENCODER)
EEPROM Array
Encryption Key
Sync Counter
Serial Number
KEELOQ®
Encryption
Algorithm
Button Press
Information
Serial Number
32 Bits
Encrypted Data
Transmitted Information
FIGURE 1-4:
BASIC OPERATION OF RECEIVER (DECODER)
1 Received Information
Button Press
Information
Serial Number
32 Bits of
Encrypted Data
EEPROM Array
Manufacturer Code
2
Check for
Match
Perform Function
5
Indicated by
button press
3
KEELOQ®
Decryption
Algorithm
Decrypted
Synchronization
Counter
Serial Number
Sync Counter
Encryption Key
4
Check for
Match
NOTE: Circled numbers indicate the order of execution.
© 2011 Microchip Technology Inc.
DS41189B-page 5
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