S93A46A Datasheet, PDF (5/41 Pages) Seiko Instruments Inc – 125C OPERATION 3-WIRE SERIAL

Rev.6.1_00
125°C OPERATION 3-WIRE SERIAL E²PROM FOR AUTOMOTIVE
S-93A46A/56A/66A
 AEC-Q100 Qualified
This IC supports AEC-Q100 for operation temperature grade 1.
Contact our sales office for details of AEC-Q100 reliability specification.
 Instruction Sets
1. S-93A46A
Table 4
Instruction
Start Bit Operation Code
Address
Data
SK input clock
READ (Read 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
WRITE (Write data)
1
0
1
A5 A4 A3 A2 A1 A0
D15 to D0 input
ERASE (Erase data)
1
1
1
A5 A4 A3 A2 A1 A0
⎯
WRAL (Write all)
1
0
0
0
1
x
x
x
x
D15 to D0 input
ERAL (Erase all)
1
0
0
1
0
x
x
x
x
⎯
EWEN (Write enable)
1
0
0
1
1
x
x
x
x
⎯
EWDS (Write disable)
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-93A56A
Table 5
Instruction
Start Bit
Operation
Code
Address
Data
SK input clock
READ (Read data)
WRITE (Write 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
ERASE (Erase data)
WRAL (Write all)
1
1
1
x A6 A5 A4 A3 A2 A1 A0
⎯
1
0
0 01xxxxxx
D15 to D0 input
ERAL (Erase all)
1
0
0 10xxxxxx
⎯
EWEN (Write enable)
1
0
0 11xxxxxx
⎯
EWDS (Write disable)
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-93A66A
Table 6
Instruction
Start Bit
Operation
Code
Address
Data
SK input clock
READ (Read 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
WRITE (Write data)
1
0
1 A7 A6 A5 A4 A3 A2 A1 A0
D15 to D0 input
ERASE (Erase data)
WRAL (Write all)
1
1
1 A7 A6 A5 A4 A3 A2 A1 A0
⎯
1
0
0 01xxxxxx
D15 to D0 input
ERAL (Erase all)
1
0
0 10xxxxxx
⎯
EWEN (Write enable)
1
0
0 11xxxxxx
⎯
EWDS (Write disable)
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
Seiko Instruments Inc.
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