S-93C46BD0I-I8T1G SII [Seiko Instruments Inc], S-93C46BD0I-I8T1G Datasheet - Page 14

• Manufacturer Part Number: S-93C46BD0I-I8T1G
• Description: 3-WIRE SERIAL E2PROM
• Manufacturer: SII [Seiko Instruments Inc]

14
3-WIRE SERIAL E
S-93C46B/56B/66B
4. 2 Writing data (WRITE)
DO
CS
SK
DI
To write 16-bit data to a specified address, change CS to high and then input the WRITE instruction,
address, and 16-bit data following the start bit. The write operation starts when CS goes low. There is no
need to set the data to 1 before writing. If the clocks more than the specified number have been input, the
clock pulse monitoring circuit cancels the WRITE instruction. For details of the clock pulse monitoring
circuit, refer to “ Function to Protect Against Write due to Erroneous Instruction Recognition ”.
CS
SK
DO
DI
1
2
1
PROM
0
2
0
2
1
3
1
3
Figure 12 Data Write Timing (S-93C56B, S-93C66B)
A5
4
High-Z
4
A6
A4
5
Figure 11 Data Write Timing (S-93C46B)
5
A7: S-93C66B
Seiko Instruments Inc.
x : S-93C56B
A5
A3
6
6
High-Z
A4
A2
7
7
A3
A1
8
8
A2
A0
9
9
A1
D15
10
10
A0
11
D15
12
25
D0
t
SV
t
CDS
27
D0
t
PR
t
SV
t
CDS
Verify
busy
t
PR
ready
Verify
Rev.7.0
busy
Standby
High-Z
ready
t
HZ1
_00
Standby
High-Z
t
HZ1