hcs301 Microchip Technology Inc., hcs301 Datasheet - Page 4
hcs301
Manufacturer Part Number
hcs301
Description
Keeloq Code Hopping Encoder
Manufacturer
Microchip Technology Inc.
Datasheet
1.HCS301.pdf
(30 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
hcs301-I/P
Manufacturer:
MICROCHIP
Quantity:
12 000
Part Number:
hcs301-I/P
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Part Number:
hcs301-I/SN
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
hcs301-SN
Manufacturer:
Agilent
Quantity:
500
Part Number:
hcs301-SN
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
hcs301/P
Manufacturer:
MICROCHIP
Quantity:
12 000
Part Number:
hcs301/P
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
hcs301/SN
Manufacturer:
MICROCHIP
Quantity:
5 600
Part Number:
hcs301/SN
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
HCS301
FIGURE 1-2:
FIGURE 1-3:
NOTE: Circled numbers indicate the order of execution.
DS21143B-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