HCS201T/SN Microchip Technology, HCS201T/SN Datasheet - Page 4
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HCS201T/SN
Manufacturer Part Number
HCS201T/SN
Description
IC CODE HOPP ENCODER 7FUNC 8SOIC
Manufacturer
Microchip Technology
Type
Code Hopping Encoderr
Specifications of HCS201T/SN
Applications
Remote Secure Access, Keyless Entry
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HCS201T/SN
Manufacturer:
MICROCHIP
Quantity:
12 000
Part Number:
HCS201T/SN
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
HCS201T/SN028
Manufacturer:
PANASONIC
Quantity:
4 623
HCS201
FIGURE 1-2:
FIGURE 1-3:
NOTE: Circled numbers indicate the order of execution.
DS41098C-page 4
EEPROM Array
Serial Number
Sync Counter
Crypt Key
5
Perform Function
Indicated by
Button Press
button press
Information
BUILDING THE TRANSMITTED CODE WORD (ENCODER)
BASIC OPERATION OF RECEIVER (DECODER)
1
2
Received Information
Serial Number
Check for
Match
Synchronization
Encrypted Data
Decrypted
K
Decryption
Algorithm
32 Bits of
Counter
EE
Encryption
Algorithm
L
K
3
OQ
Button Press
EE
Information
L
OQ
Transmitted Information
Serial Number
4
Manufacturer Code
EEPROM Array
Check for
Serial Number
Match
Sync Counter
Crypt Key
2001 Microchip Technology Inc.
Encrypted Data
32 Bits