CAT25CXXX Datasheet, PDF (9/12 Pages) Catalyst Semiconductor – Supervisory Circuits with SPI Serial E2PROM, Precision Reset Controller and Watchdog Timer

Advanced
CAT25CXXX
Figure 5. RDSR Timing
CS
SCK
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14
SI
SO
HIGH IMPEDANCE
7
6
MSB
DATA OUT
5
4
3
2
1
0
25C128 F09
Figure 6. Write Instruction Timing
012345678
21 22 23 24 25 26 27 28 29 30 31
SK
CS
SI
00 00 00 10
SO
ADDRESS
D7 D6 D5 D4 D3 D2 D1 D0
Figure 7. WRSR Timing
CS
SCK
SI
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14
INSTRUCTION
DATA IN
7
6
5
4
3
2
1
0
SO
25C128 F08
9-103
Stock No. 21085-01 4/98