GD25VQ40CSIG datasheet(14/56 Pages) GIGADEVICE

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Uniform Sector

Dual and Quad Serial Flash

GD25VQ40C

Deep Power-Down

B9H

Release From Deep

Power-Down, And

Read Device ID

ABH

dummy

(DID7-

DID0)

(continuous)

Release From Deep

Power-Down

ABH

Manufacturer/

Device ID

90H

dummy

00H

(MID7-

MID0)

(DID7-

DID0)

(continuous)

High Performance

Mode

A3H

dummy

Read Serial Flash

Discoverable

Parameter

5AH

A23-A16

A15-A8

A7-A0

dummy

(D7-D0)

(continuous)

Read Identification

9FH

(MID7-

M0)

(JDID15-

JDID8)

(JDID7-

JDID0)

(continuous)

Erase Security

Registers(8)

44H

A23-A16

A15-A8

A7-A0

Program Security

Registers(8)

42H

A23-A16

A15-A8

A7-A0

D7-D0

Read Security

Registers(8)

48H

A23-A16

A15-A8

A7-A0

dummy

(D7-D0)

NOTE:

Dual Output data

IO0 = (D6, D4, D2, D0)

IO1 = (D7, D5, D3, D1)

Dual Input Address

IO0 = A22, A20, A18, A16, A14, A12, A10, A8

A6, A4, A2, A0, M6, M4, M2, M0

IO1 = A23, A21, A19, A17, A15, A13, A11, A9

A7, A5, A3, A1, M7, M5, M3, M1

Quad Output Data

IO0 = (D4, D0,

…..)

IO1 = (D5, D1,

…..)

IO2 = (D6, D2,

…..)

IO3 = (D7,

D3,…..)

Quad Input Address

IO0 = A20, A16, A12, A8,

A4, A0, M4, M0

IO1 = A21, A17, A13, A9,

A5, A1, M5, M1

IO2 = A22, A18, A14, A10, A6, A2, M6, M2

IO3 = A23, A19, A15, A11, A7, A3, M7, M3

5. Fast Read Quad I/O Data

IO0 = (x, x, x,

x, D4, D0,…)

IO1 = (x, x, x, x, D5,

D1,…)

IO2 = (x, x, x,

x, D6, D2,…)

IO3 = (x, x, x,

x, D7, D3,…)

6. Fast Word Read Quad I/O Data

IO0 = (x,

x, D4, D0,…)

IO1 = (x,

x, D5, D1,…)

IO2 = (x,

x, D6, D2,…)

IO3 = (x,

x, D7, D3,…)

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