s-93c46a Seiko Instruments Inc., s-93c46a Datasheet - Page 12

• Manufacturer Part Number: s-93c46a
• Description: Cmos Serial E2prom
• Manufacturer: Seiko Instruments Inc.

2.4 ERAL
After changing CS to high, input a start-bit, op-code (ERAL), and address (optional). It is not necessary to input data.
Changing CS to low will start the ERAL operation, which changes every bit of data to "1."
This instruction erases the data in every address.
CS
SK
CS
SK
DO
DO
CS
SK
DI
DI
DI
DO
1
1
1
1
1
1
0
0
2
2
0
2
3
3
0
0
3
0
1
1
1
4
4
4
Figure 16
Figure 17
Figure 18
0
0
0
5
5
5
Seiko Instruments Inc.
6
6
6
ERAL Timing (S-93C46A)
ERAL Timing (S-93C56A)
ERAL Timing (S-93C66A)
7
7
7
6Xs
6Xs
4Xs
8
8
8
9
9
9
t
CDS
10
10
11
11
t
t
CDS
CDS
t
PR
busy
VERIFY
t
SV
t
t
PR
PR
ready
CMOS SERIAL E
busy
busy
VERIFY
VERIFY
t
t
SV
SV
S-93C46A/56A/66A
t
HZ1
Hi-Z
ready
ready
Hi-Z
Hi-Z
t
t
HZ1
HZ1
2
PROM
11