S-93A46A SII [Seiko Instruments Inc], S-93A46A Datasheet - Page 13

• Manufacturer Part Number: S-93A46A
• Description: CMOS SERIAL E2PROM
• Manufacturer: SII [Seiko Instruments Inc]

Rev.2.1
4.3 Erasing Data (ERASE)
To erase 16-bit data at a specified address, set all 16 bits of the data to 1, change CS to high, and
then input the ERASE instruction and address following the start bit. There is no need to input data.
The data erase operation starts when CS goes low. When the clocks more than the specified number
have been input, the clock pulse monitoring circuit cancels the ERASE instruction. For details of the
clock pulse monitoring circuit, refer to “
Instruction Recognition ”.
_00
CS
SK
DO
DI
CS
SK
DO
DI
<1>
1
<1>
1
1
2
1
1
2
3
Figure 9 Data Erase Timing (S-93A56A/66A)
Hi-Z
1
3
4
Figure 8 Data Erase Timing (S-93A46A)
A5
A6
Hi-Z
4
5
A7:S-93A66A
Seiko Instruments Inc.
A4
A5
x:S-93A56A
5
6
A3
A4
6
7
Function to Protect Against Write due to Erroneous
A2
A3
7
8
A1
A2
8
9
A1
10
9
A0
11
A0
t
SV
t
CDS
t
SV
t
t
PR
CDS
t
CMOS SERIAL E
PR
Verify
busy
Verify
busy
S-93A46A/56A/66A
ready
ready
Standby
Hi-Z
t
HZ1
Standby
Hi-Z
t
2
HZ1
PROM
13