S-93A46A Datasheet, PDF (4/34 Pages) Seiko Instruments Inc – CMOS SERIAL E2PROM

CMOS SERIAL E²PROM
S-93A46A/56A/66A
Rev.2.1_00
2. S-93A56A
Table 3
Instruction
Start Bit Operation Code
Address
Data
SK input clock
1
2
3 4 5 6 7 8 9 10 11
12 to 27
READ (Read data)
1
1
0
x A6 A5 A4 A3 A2 A1 A0 D15 to D0 output^*1
WRITE (Write data)
1
0
1 x A6 A5 A4 A3 A2 A1 A0 D15 to D0 input
ERASE (Erase data)
1
1
1 x A6 A5 A4 A3 A2 A1 A0

WRAL (Write all)
1
0
0 0 1xxxxxx
D15 to D0 input
ERAL (Erase all)
1
0
0 1 0xxxxxx

EWEN (Write enable)
1
0
0 1 1xxxxxx

EWDS (Write disable)
1
0
0 0 0xxxxxx

*1. When the 16-bit data in the specified address has been output, the data in the next address is output.
Remark x: Doesn’t matter
3. S-93A66A
Table 4
Instruction
Start Bit Operation Code
Address
Data
SK input clock
1
2
3 4 5 6 7 8 9 10 11
12 to 27
READ (Read data)
1
1
0 A7 A6 A5 A4 A3 A2 A1 A0 D15 to D0 output^*1
WRITE (Write data)
1
0
1 A7 A6 A5 A4 A3 A2 A1 A0 D15 to D0 input
ERASE (Erase data)
1
1
1 A7 A6 A5 A4 A3 A2 A1 A0

WRAL (Write all)
1
0
0 0 1xxxxxx
D15 to D0 input
ERAL (Erase all)
1
0
0 1 0xxxxxx

EWEN (Write enable)
1
0
0 1 1xxxxxx

EWDS (Write disable)
1
0
0 0 0xxxxxx

*1. When the 16-bit data in the specified address has been output, the data in the next address is output.
Remark x: Doesn’t matter
4
Seiko Instruments Inc.