M93S46 ST Microelectronics, M93S46 Datasheet - Page 20

• Manufacturer Part Number: M93S46
• Description: 4Kbit / 2Kbit and 1Kbit 16-bit wide MICROWIRE Serial Access EEPROM with Block Protection
• Manufacturer: ST Microelectronics

M93S66, M93S56, M93S46
Table 16. AC Characteristics (M93Sx6, temperature range 6 or 3)
Note: 1. t
20/32
Symbol
t
t
t
t
t
t
t
PRVCH
t
t
t
t
t
t
CLPRX
t
CHCL
CLCH
t
t
SLSH
t
WVCH
SHCH
CHDX
SHQV
CHQV
SLWX
DVCH
CHQL
SLCH
CLSH
CLSL
SLQZ
t
f
W
C
2. Chip Select Input (S) must be brought Low for a minimum of tSLSH between consecutive instruction cycles.
3. Current product: identified by Process Identification letter F or M.
4. New product: identified by Process Identification letter W.
2
1
1
CHCL
+ t
t
t
t
PRES
t
PREH
t
t
t
t
t
t
t
t
Alt.
t
t
PEH
CSS
t
SKH
CSH
f
PES
SKS
t
t
PD0
PD1
SKL
DIS
DIH
WP
CLCH
SK
CS
SV
DF
1 / f
Clock Frequency
Protect Enable Valid to Clock High
Write Enable Valid to Clock High
Clock Low to Protect Enable Transition
Chip Select Low to Write Enable
Transition
Chip Select Low to Clock High
Chip Select Set-up Time
M93C46, M93C56, M93C66
Chip Select Set-up time
M93C76, M93C86
Chip Select Low to Chip Select High
Clock High Time
Clock Low Time
Data In Set-up Time
Data In Hold Time
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
Delay to Output Valid
Erase/Write Cycle time
C
.
Test conditions specified in Table 8 and Table 5
Parameter
Min.
D.C.
250
250
100
250
250
250
100
100
100
50
50
50
0
0
3
Max.
400
200
400
400
10
1
3
Min.
D.C.
250
200
200
200
50
50
50
50
50
50
50
50
0
0
4
Max.
200
100
200
200
2
5
4
MHz
Unit
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns