S-93C46B Datasheet, PDF (6/45 Pages) Seiko Instruments Inc – CMOS SERIAL E2PROM

CMOS SERIAL E²PROM
S-93C46B/56B/66B
Rev.4.3_00
„ Instruction Sets
1. S-93C46B
Table 6
Instruction
Start Bit
Operation
Code
Address
Data
SK input clock
1
23456789
10 to 25
READ (Read data)
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
00 10 x x x x

EWEN (Write enable)
1
00 11 x x x x

EWDS (Write disable)
1
00 00 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 7
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 1 ^{x x x x x x} 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
6
Seiko Instruments Inc.