AT88SC101 データシートの表示（PDF） - Atmel Corporation
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AT88SC101 Datasheet PDF : 11 Pages
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AT88SC101/102
Memory Access to AT88SC101 and AT88SC102
The access to the memory is controlled by the state of the internal fuses and by the voltage supply applied on the FUS pad:
FUS Pad
Voltage
0V
5V
5V
State of the FUSES
FUSE 1FUSE 2
Either
Either
Blown
Not Blown
Blown
Blown
Access Conditions See:
Table 2
Table 1
Table 2
Table 1. AT88SC101/102 Access Conditions During Personalization (FUSE 2 Not Blown)
Zones
S1 1 2 2 EEE
CPRPRZ Z C
RDRD1 2
READ
WRITE 1 WRITE 0 Compare
(Erase) (PROG)
FZ
XXXXXXXX
YES
NO
NO
NO
IZ
0XXXXXXX
1XXXXXXX
YES
NO
NO
NO
YES
YES
YES
NO
SC
0XXXXXXX
1XXXXXXX
NO
NO
NO
YES
YES
YES
YES
NO
SCAC
0XXXXXXX
1XXXXXXX
YES
NO
YES
NO
YES
YES
YES
NO
CPZ
0XXXXXXX
1XXXXXXX
YES
NO
NO
NO
YES
YES
YES
NO
AZ1
0X0XXXXX
0X1XXXXX
1XXXXXXX
NO
NO
NO
NO
YES
NO
NO
NO
YES
YES
YES
NO
EZ1
0XXXXXXX
1XXXXXXX
NO
NO
NO
NO
YES
YES
YES
NO
AZ2
0XXX0XXX
0XXX1XXX
1XXXXXXX
NO
NO
NO
NO
YES
NO
NO
NO
YES
YES
YES
NO
EZ2
0XXXXXXX
1XXXXXXX
NO
NO
NO
NO
YES
YES
YES
NO
EC
0XXXXXXX
1XXXXXXX
YES
NO
YES
NO
YES
YES
YES
NO
MTZ
XXXXXXXX
Notes: SC:SC = 1 after validation of security code
1PR:1st bit of AZ1 (Bit 176)
1RD:2nd bit of AZ1(Bit 177)
2PR:1st bit of AZ2 (Bit 736) - AT88SC102 only
2RD:
EZ1:
EZ2:
EC:
YES
YES
YES
NO
2nd bit of AZ2 (Bit 737) - AT88SC102 only
EZ1 = 1 after a valid presentation of erase key 1
EZ2 = 1 after a valid presentation of erase key 2
EC = 1 when the counter is not empty.
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