LE25LB643

Table 1 Command Settings

Command

1st bus

cycle

2nd bus

cycle

3rd bus

cycle

4th bus

cycle

5th bus

cycle

6th bus

cycle

nth bus

cycle

Write enable

(WREN)

06h

Write disable

(WRDI)

04h

Status register read

(RDSR)

05h

Status register write

(WRSR)

01h

DATA

Read

(READ)

03h

A15-A8

A7-A0

Write

(WRITE)

02h

A15-A8

A7-A0

PD *1

PD *1

PD *1

PD *1

Explanatory notes for Table 1

The “h” following each code indicates that the number given is in hexadecimal notation.

Addresses A15 - A13 for all commands are “don’t care.”

*1: “PD” stands for page program data. Any amount of data from 1 to 32 bytes is input.

Figure 2 Serial Input Timing

(SPI Mode 0)

CS

tCSS

tCLHI tCLLO

tCSH

tCLH

tCPH

tDH

tDS

DATA VALID

High Impedance

High Impedance

tCLS

SCK

SI

SO

(SPI Mode 3)

tCLLO tCLHI

tCSH

tCLH

tCPH

tDH

tDS

DATA VALID

High Impedance

High Impedance

tCSS

tCLS

CS

SCK

SI

SO

No.NA1342-5/14