S93S46A Datasheet, PDF (8/25 Pages) Seiko Instruments Inc – 3-WIRE SERIAL E2PROM FOR AUTOMOTIVE

150°C OPERATION 3-WIRE SERIAL E²PROM FOR AUTOMOTIVE
S-93S46A/56A/66A
 Initial Delivery State
Initial delivery state of all addresses is "FFFFh".
Rev.2.1_00
 Instruction Sets
1. S-93S46A
Table 12 Instruction Set
Instruction
Start Bit
Operation
Code
Address
Data
SK input clock
1
2
3
4
5
6
7
8
9
10 to 25
READ (Data read)
1
1
0
A5 A4 A3 A2 A1 A0 D15 to D0 output^*1
WRITE (Data write)
1
0
1 A5 A4 A3 A2 A1 A0
D15 to D0 input
ERASE (Data erase)
WRAL (Chip write)
1
1
1 A5 A4 A3 A2 A1 A0
−
1
0
0
0 1 XXXX
D15 to D0 input
ERAL (Chip erase)
1
0
0
1 0 XXXX
−
EWEN (Write enable)
1
0
0
1 1 XXXX
−
EWDS (Write disable)
1
0
0
0 0 XXXX
−
*1. When the 16-bit data in the specified address has been output, the data in the next address is output.
Remark X = Don't care.
2. S-93S56A
Table 13 Instruction Set
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 (Data read)
1
1
0
X A6 A5 A4 A3 A2 A1 A0 D15 to D0 output^*1
WRITE (Data write)
1
0
1 X A6 A5 A4 A3 A2 A1 A0 D15 to D0 input
ERASE (Data erase)
1
1
1 X A6 A5 A4 A3 A2 A1 A0
−
WRAL (Chip write)
1
0
0 0 1 X X X X X X D15 to D0 input
ERAL (Chip erase)
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 = Don't care.
3. S-93S66A
Table 14 Instruction Set
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 (Data read)
1
1
0 A7 A6 A5 A4 A3 A2 A1 A0 D15 to D0 output^*1
WRITE (Data write)
1
0
1 A7 A6 A5 A4 A3 A2 A1 A0 D15 to D0 input
ERASE (Data erase)
1
1
1 A7 A6 A5 A4 A3 A2 A1 A0
−
WRAL (Chip write)
1
0
0 0 1 X X X X X X D15 to D0 input
ERAL (Chip erase)
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 = Don't care.
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Seiko Instruments Inc.