S-93C46B_1 Datasheet, PDF (6/50 Pages) Seiko Instruments Inc – 3-WIRE SERIAL E2PROM

3-WIRE SERIAL E²PROM
S-93C46B/56B/66B
Rev.7.0_00
„ Instruction Sets
1. S-93C46B
Table 7
Instruction
SK input clock
READ (Read data)
WRITE (Write data)
ERASE (Erase data)
WRAL (Write all)
ERAL (Erase all)
EWEN (Write enable)
EWDS (Write disable)
Start Bit
Operation
Code
Address
Data
1
2
3
4
5
6
7
8
9
10 to 25
1
1
0 A5 A4 A3 A2 A1 A0 D15 to D0 Output^*1
1
0
1 A5 A4 A3 A2 A1 A0 D15 to D0 Input
1
1
1 A5 A4 A3 A2 A1 A0
⎯
1
0
0
0
1
x
x
x
x D15 to D0 Input
1
0
0
1
0
x
x
x
x
⎯
1
0
0
1
1
x
x
x
x
⎯
1
0
0
0
0
x
x
x
x
⎯
*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-93C56B
Table 8
Instruction
SK input clock
READ (Read data)
WRITE (Write data)
ERASE (Erase data)
WRAL (Write all)
ERAL (Erase all)
EWEN (Write enable)
EWDS (Write disable)
Start Bit
Operation
Code
Address
Data
1
2 3 4 5 6 7 8 9 10 11
12 to 27
1
1 0 ^{x A6 A5 A4 A3 A2 A1 A0} D15 to D0 Output^*1
1
0 1 ^{x A6 A5 A4 A3 A2 A1 A0} D15 to D0 Input
1
1 1 ^{x A6 A5 A4 A3 A2 A1 A0}
⎯
1
0 0 0 1 ^{x x x x x x} D15 to D0 Input
1
0 0 10xxxxxx
⎯
1
0 0 11xxxxxx
⎯
1
0 0 00xxxxxx
⎯
*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-93C66B
Table 9
Instruction
SK input clock
READ (Read data)
WRITE (Write data)
ERASE (Erase data)
WRAL (Write all)
ERAL (Erase all)
EWEN (Write enable)
EWDS (Write disable)
Start Bit
Operation
Code
Address
Data
1
2 3 4 5 6 7 8 9 10 11
12 to 27
1
1 0 ^{A7 A6 A5 A4 A3 A2 A1 A0} D15 to D0 Output^*1
1
0 1 ^{A7 A6 A5 A4 A3 A2 A1 A0} D15 to D0 Input
1
1 1 ^{A7 A6 A5 A4 A3 A2 A1 A0}
⎯
1
0 0 0 1 ^{x x x x x x} D15 to D0 Input
1
0 0 10xxxxxx
⎯
1
0 0 11xxxxxx
⎯
1
0 0 00xxxxxx
⎯
*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
6
Seiko Instruments Inc.