S-93C46B datasheet(6/45 Pages) SII

6 / 45 page

CMOS SERIAL E2PROM

S-93C46B/56B/66B

Rev.4.3_00

Seiko Instruments Inc.

Instruction Sets

1. S-93C46B

Table 6

Instruction

Start Bit

Operation

Code

Address

Data

SK input clock

10 to 25

READ (Read data)

D15 to D0 Output

WRITE (Write data)

D15 to D0 Input

ERASE (Erase data)



WRAL (Write all)

D15 to D0 Input

ERAL (Erase all)



EWEN (Write enable)



EWDS (Write disable)



*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

10 11

12 to 27

READ (Read data)

A6 A5 A4 A3 A2 A1 A0 D15 to D0 Output*1

WRITE (Write data)

A6 A5 A4 A3 A2 A1 A0 D15 to D0 Input

ERASE (Erase data)

A6 A5 A4 A3 A2 A1 A0



WRAL (Write all)

D15 to D0 Input

ERAL (Erase all)



EWEN (Write enable)



EWDS (Write disable)



*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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