Table 2.

AT88SC101/102 Access Conditions After Personalization (FUSE 2 Blown)

Zones

S

C

1

P

R

1

R

D

2

P

R

2

R

D

E

Z

1

E

Z

2

E

C

READ

WRITE 1

(Erase)

WRITE 0

(PROG)

Compare

FZ

XXXXXX

XX

YES

NO

NO

NO

IZ

XXXXXX

XX

YES

NO

NO

NO

SC

0

1

X

X

X

X

X

X

X

X

X

X

X

X

X

X

NO

NO

NO

YES

NO

YES

YES

NO

SCAC

0

1

X

X

X

X

X

X

X

X

X

X

X

X

X

X

YES

YES

NO

YES

YES

YES

NO

NO

CPZ

0

1

X

X

X

X

X

X

X

X

X

X

X

X

X

X

YES

YES

NO

YES

NO

YES

NO

NO

AZ1

0

0

1

1

1

1

X

X

0

0

1

1

0

1

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

0

1

0

1

X

X

X

X

X

X

X

X

X

X

X

X

NO

YES

YES

YES

YES

YES

NO

NO

NO

YES

NO

YES

NO

NO

NO

NO

YES

YES

NO

NO

NO

NO

NO

NO

EZ1

XXXXXX

XX

NO

NO

NO

YES

AZ2

0

0

1

1

1

1

1

1

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

0

0

0

1

1

1

0

1

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

0

X

1

0

X

1

X

X

X

0

1

X

0

1

NO

YES

YES

YES

YES

YES

YES

YES

NO

NO

NO

NO

YES

NO

NO

YES

NO

NO

NO

NO

NO

YES

YES

YES

NO

NO

NO

NO

NO

NO

NO

NO

EZ2

XXXXXX

XX

NO

NO

NO

YES

EC

XXXXXX

XX

YES

NO

YES

NO

MTZ

XXXXXX

XX

YES

YES

YES

NO

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:

2nd bit of AZ2 (Bit 737) - AT88SC102 only

EZ1:

EZ1 = 1 after a valid presentation of erase key 1

EZ2:

EZ2 = 1 after a valid presentation of erase key 2

EC:

EC = 1 when the counter is not empty.

4

AT88SC101/102