IS23SC4418
IS23SC4428
ISSI ®
Command
Entry
Data Output
RST
CLK
0
23 0 1 2 3 4 5 6 7 0 1
0 1234567
I/O
XX S0 … D7 XX D0 D1 D2 D3 D4 D5 D6 D7 D0
…
D0 D1 D2 D3 D4 D5 D6 D7
XXX
Address
Start Address (A0-A9)
Start Address + 1 to
Start Address + (n-1)
Start Address + n
Figure 6. Read 8-bit Data
Command
Entry
Data Output
RST
CLK
0
23 0 1 2 3 4 5 6 7 8 0
0 1234567 8
I/O
XX S0 … D7 XX D0 D1 D2 D3 D4 D5 D6 D7 P8
…
D0 D1 D2 D3 D4 D5 D6 D7 P8 XXX
Address
X - Don't Care
P8 - '0' if the protect bit is enabled.
- '1' if the protect bit is disabled.
Start Address (A0 - A9)
Start Address + 1 to
Start Address + (n-1)
Start Address + n
Figure 7. Read 9-bit Data with Protect Bit
Integrated Silicon Solution, Inc. — 1-800-379-4774
7
REV. A
11/01/01