ST93CS47 STMicroelectronics, ST93CS47 Datasheet - Page 4

• Manufacturer Part Number: ST93CS47
• Description: (ST93CS46 / ST93CS47) 1K 64 x 16 SERIAL MICROWIRE EEPROM
• Manufacturer: STMicroelectronics

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ST93CS46, ST93CS47
Table 5. DC Characteristics (T
V
Notes: 1. Chip Select must be brought low for a minimum of 250 ns (t
Figure 4. Synchronous Timing, Start and Op-Code Input
4/16
CC
Symbol
t
t
t
t
t
t
t
PRVCH
t
t
t
t
t
t
t
CLPRX
t
WVCH
SHCH
DVCH
CHDX
CHQV
CHQL
SLWX
SLSH
SHQV
SLQZ
CHCL
CLCH
CLSL
= 2.5V to 5.5V for ST93CS47)
t
f
W
C
2. The Clock frequency specification calls for a minimum clock period of 1 s, therefore the sum of the timings t
must be greater or equal to 1 s. For example, if t
t
t
PRES
t
t
t
t
PREH
t
t
t
t
t
t
t
Alt
t
PES
CSS
PD0
PD1
PEH
CSH
t
t
SKH
f
SKL
DIS
DIH
WP
CS
SV
DF
SK
PRE
W
C
S
D
Protect Enable Valid to Clock High
Write Enable Valid to Clock High
Chip Select High to Clock High
Input Valid to Clock High
Clock High to Input Transition
Clock High to Output Low
Clock High to Output Valid
Clock Low to Protect Enable Transition
Chip Select Low to Write Enable Transition
Clock Low to Chip Select Transition
Chip Select Low to Chip Select High
Chip Select High to Output Valid
Chip Select Low to Output Hi-Z
Clock High to Clock Low
Clock Low to Clock High
Erase/Write Cycle time
Clock Frequency
tPRVCH
A
tWVCH
tSHCH
= 0 to 70 C or –40 to 85 C; V
Parameter
START
START
CHCL
tDVCH
is 250 ns, then t
SLSH
OP CODE
) between consecutive instruction cycles.
OP CODE INPUT
CLCH
must be at least 750 ns.
CC
Test Condition
tCHDX
= 3V to 5.5V for ST93CS46 and
tCHCL
OP CODE
Note 1
Note 2
Note 2
tCLCH
AI00887
Min
100
100
250
250
250
250
50
50
50
0
0
0
CHCL
Max
500
500
500
300
10
1
+ t
CLCH
MHz
Unit
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns