M93C86, M93C76, M93C66, M93C56, M93C46
Table 23. AC Characteristics (M93Cx6-R)
Test conditions specified in Table 13. and Table 11.
3
3
Symbol
Alt.
Parameter
Unit
MHz
ns
Min.
D.C.
250
50
Max.
f
f
SK
Clock Frequency
1
C
t
Chip Select Low to Clock High
Chip Select Set-up Time
SLCH
t
t
CSS
ns
SHCH
2
t
Chip Select Low to Chip Select High
250
250
ns
t
CS
SLSH
1
t
Clock High Time
ns
t
SKH
CHCL
1
t
Clock Low Time
250
100
100
100
0
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
t
SKL
CLCH
t
t
Data In Set-up Time
DVCH
DIS
t
t
Data In Hold Time
CHDX
DIH
t
t
t
Clock Set-up Time (relative to S)
Chip Select Hold Time
Chip Select to Ready/Busy Status
Chip Select Low to Output Hi-Z
Delay to Output Low
CLSH
SKS
t
CLSL
CSH
t
t
400
200
400
400
10
SHQV
SV
t
t
SLQZ
DF
t
t
CHQL
PD0
PD1
t
t
Delay to Output Valid
CHQV
t
W
t
Erase/Write Cycle time
WP
Note: 1. t
+ t
CLCH
≥ 1 / f .
CHCL
C
2. Chip Select Input (S) must be brought Low for a minimum of tSLSH between consecutive instruction cycles.
3. This product is under development. For more infomation, please contact your nearest ST sales office.
21/31
STMICROELECTRONICS [ ST ]
