MAX66140 Maxim, MAX66140 Datasheet - Page 19

• Manufacturer Part Number: MAX66140
• Description: The MAX66140 combines 1024 bits of user EEPROM with secure hash algorithm (SHA-1) challenge-and-response authentication (ISO/IEC 10118-3 SHA-1), a 64-bit unique identifier (UID), one 64-bit secret, and a 13
• Manufacturer: Maxim

ISO 15693-Compliant Secure Memory
Figure 17. 8-Bit CRC Generator
Figure 18. CRC-16-CCITT Generator
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X
0
STAGE
MSb
X
X
1ST
0
8
STAGE
STAGE
MSb
1ST
9TH
X
1
STAGE
X
X
2ND
1
9
STAGE
STAGE
10TH
2ND
ABRIDGED DATA SHEET
X
2
STAGE
X
X
3RD
10
2
STAGE
STAGE
11TH
3RD
X
3
STAGE
X
X
4TH
11
3
STAGE
STAGE
12TH
4TH
POLYNOMIAL = X
POLYNOMIAL = X
X
4
STAGE
5TH
X
4
8
16
+ X
+ X
5
STAGE
X
5TH
12
+ X
12
+ X
4
+ 1
5
STAGE
13TH
+ 1
X
13
X
5
STAGE
14TH
STAGE
X
6TH
5
STAGE
X
6TH
14
X
6
STAGE
15TH
STAGE
X
7TH
6
STAGE
X
7TH
15
X
INPUT DATA
7
STAGE
16TH
LSb
STAGE
X
INPUT DATA
8TH
7
STAGE
X
LSb
8TH
16
X
8