CAT25080 Datasheet, PDF (5/16 Pages) Catalyst Semiconductor – 8-Kb and 16-Kb SPI Serial CMOS EEPROM

CAT25080, CAT25160
Table 8. STATUS REGISTER
7
6
5
WPEN
0
0
4
3
2
1
0
0
BP1
BP0
WEL
RDY
Table 9. BLOCK PROTECTION BITS
Status Register Bits
BP1
BP0
0
0
0
1
1
0
1
1
None
Array Address Protected
25080: 0300−03FF
25160: 0600−07FF
25080: 0200−03FF
25160: 0400−07FF
25080: 0000−03FF
25160: 0000−07FF
Protection
No Protection
Quarter Array Protection
Half Array Protection
Full Array Protection
Table 10. WRITE PROTECT CONDITIONS
WPEN
WP
0
X
0
X
1
Low
1
Low
X
High
X
High
WEL
0
1
0
1
0
1
Protected Blocks
Protected
Protected
Protected
Protected
Protected
Protected
Unprotected Blocks
Protected
Writable
Protected
Writable
Protected
Writable
Status Register
Protected
Writable
Protected
Protected
Protected
Writable
http://onsemi.com
5