N25S830HAS22IT データシートの表示（PDF） - ON Semiconductor

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N25S830HAS22IT

256Kb Low Power Serial SRAMs 32K × 8 bit Organization

ON Semiconductor 

N25S0830HA

WRITE Status Register Instruction (WRSR)

This instruction provides the ability to write the status register and select among several operating modes.

Several of the register bits must be set to a low ‘0’ if any of the other bits are written. The timing sequence

to write to the status register is shown below, followed by the organization of the status register.

WRITE Status Register Sequence

CS

SCK

SI

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Instruction

Status Register Data In

0000000176543210

SO

High-Z

Status Register

Bit 7 Bit 6

Bit 5

Bit 4 Bit 3 Bit 2 Bit 1

Bit 0

Mode

0 0 = Word Mode

(Default)

1 0 = Page Mode

0 1 = Burst Mode

1 1 = Reserved

Reserved

Must = 0

Reserved

Must = 0

Hold Function

0 = Hold (Default)

1 = No Hold

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