GD25B127DPFS datasheet(15/65 Pages) GIGADEVICE

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3.3V Uniform Sector

Dual and Quad Serial Flash

GD25B127D

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,…)

7. Fast Word Read Quad I/O Data: the lowest address bit must be 0.

8. Security Registers Address:

Security Register1: A23-A16=00H, A15-A10=000100b, A9-A0=Byte Address;

Security Register2: A23-A16=00H, A15-A10=001000b, A9-A0=Byte Address;

Security Register3: A23-A16=00H, A15-A10=001100b, A9-A0=Byte Address.

9. Dummy bits and Wrap Bits

IO0=(x,x, x,x, x,x, W4, x)

IO1=(x,x, x,x, x,x, W5, x)

IO2=(x,x, x,x, x,x, W6, x)

IO3=(x,x, x,x, x,x,

x, x)

10.Address, Continuous Read Mode bits, Dummy bits, Manufacture ID and Device ID

IO0=(A20, A16, A12, A8, A4, A0, M4, M0, x,x, x,x, MID4, MID0, DID4, DID0,

…)

IO1=(A21, A17, A13, A9, A5, A1, M5, M1, x,x, x,x, MID5, MID1, DID5, DID1,

…)

IO2=(A22, A18, A14, A10, A6, A2, M6, M2,x,x, x,x, MID6, MID2, DID6, DID2,

…)

IO3=(A23, A19, A15, A11, A7, A3, M7, M3, x,x, x,x, MID7, MID3, DID7, DID3,

…)

Table 7.2. Table of ID Definitions for GD25B127D

Operation Code

MID7-MID0

ID15-ID8

ID7-ID0

9FH

90H/92H/94H

ABH

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