S-25A080A0A-J8T2GD データシートの表示（PDF） - Seiko Instruments Inc

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S-25A080A0A-J8T2GD

125°C OPERATION SPI SERIAL E2PROM FOR AUTOMOTIVE ELECTRIC COMPONENT

Seiko Instruments Inc 

125°C OPERATION SPI SERIAL E2PROM FOR AUTOMOTIVE ELECTRIC COMPONENT

Rev.1.0_00

S-25A080A/160A/320A

2. Write enable (WREN)

Before writing data (WRITE and WRSR), be sure to set bit Write Enable Latch (WEL). This instruction is to set bit

WEL. Its operation is below.

After selecting the device by the chip select ( CS ), input the instruction code from serial data input (SI). To set bit WEL,

set the device in the non-select status by CS at the 8th clock of the serial clock (SCK). To cancel the WREN

instruction, input the clock different from a specified value (n = 8 clock) while CS is in “L”.

CS

WP

High / Low

SCK

SI

SO

1

2

3

4

5

6

7

8

Instruction

High-Z

Figure 10 WREN Operation

Seiko Instruments Inc.

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