Document Number: 002-00833 Rev. *L
Page 19 of 74
S29VS256R
S29VS128R
S29XS256R
S29XS128R
through
provide the latency for initial and boundary crossing wait state operation (note that ws = wait state).
Note:
The default initial wait state delay after power on or reset is 13 wait states.
Note:
1. This column applies to the 256 Byte boundary only.
Note:
1. This column applies to the 256 Byte boundary only.
Table 10. Initial Wait State vs. Frequency
Wait State
Frequency (Maximum MHz)
3
27
4
40
5
54
6
66
7
80
8
95
9
104
10
120
Table 11. Address Latency for 10 -13 Wait States
Word
Initial Wait
Subsequent Clock Cycles After Initial Wait States
0
10 -13 wait states
D0
D1
D2
D3
D4
D5
D6
D7
D8
1
D1
D2
D3
D4
D5
D6
D7
1 ws
+2 ws
D8
2
D2
D3
D4
D5
D6
D7
1 ws
1 ws
+2 ws
D8
3
D3
D4
D5
D6
D7
1 ws
1 ws
1 ws
+2 ws
D8
4
D4
D5
D6
D7
1 ws
1 ws
1 ws
1 ws
+2 w
s
D8
5
D5
D6
D7
1 ws
1 ws
1 ws
1 ws
1 ws
+2 ws
D8
6
D6
D7
1 ws
1 ws
1 ws
1 ws
1 ws
1 ws
+2 ws
D8
7
D7
1 ws
1 ws
1 ws
1 ws
1 ws
1 ws
1 ws
+2 ws
D8
Table 12. Address Latency for 9 Wait States
Word
Initial Wait
Subsequent Clock Cycles After Initial Wait States
0
9 wait states
D0
D1
D2
D3
D4
D5
D6
D7
D8
1
D1
D2
D3
D4
D5
D6
D7
1 ws
+1 ws
D8
2
D2
D3
D4
D5
D6
D7
1 ws
1 ws
+1 ws
D8
3
D3
D4
D5
D6
D7
1 ws
1 ws
1 ws
+1 ws
D8
4
D4
D5
D6
D7
1 ws
1 ws
1 ws
1 ws
+1 ws
D8
5
D5
D6
D7
1 ws
1 ws
1 ws
1 ws
1 ws
+1 ws
D8
6
D6
D7
1 ws
1 ws
1 ws
1 ws
1 ws
1 ws
+1 ws
D8
7
D7
1 ws
1 ws
1 ws
1 ws
1 ws
1 ws
1 ws
+1 ws
D8