AT25SL321 datasheet(18/82 Pages) DIALOG

18 / 82 page

AT25SL321

DS-25SL321–112H–2020-10

Notes:

Data bytes are shifted with Most Significant Bit first. Byte fields with data in parenthesis “()” indicate data being read from the device on

the IO pin.

SR = status register, The Status Register contents and Device ID are repeated continuously until CS terminates the instruction.

At least one byte of data input is required for Page Program, Quad Page Program and Program Security Register, up to 256 bytes

of data input. If more than 256 bytes of data are sent to the device, the addressing wraps to the beginning of the page and

overwrite previously sent data.

See Manufacturer and Device Identification table for Device ID information.

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

Dual Output data

IO0 = (D6, D4, D2, D0)

IO1 = (D7, D5, D3, D1)

Quad Input Address

Set Burst with Wrap Input

IO0 = A20, A16, A12, A8, A4, A0, M4, M0

IO0 = x, x, x, x, x, x, W4,

IO1 = A21, A17, A13, A9, A5, A1, M5, M1

IO1 = x, x, x, x, x, x, W5, x

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

IO2 = x, x, x, x, x, x, W6, x

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

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

Quad Input/ Output Data

IO0 = (D4, D0…)

IO1 = (D5, D1…)

IO2 = (D6, D2…)

IO3 = (D7, D3…)

Fast Read Quad I/O Data Output

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…)

10. SC = security register

Read Manufacturer/Device

ID(4)

90h

00h

00h or

01h

(MID7-

MID0)

(DID7-

DID0)

Read JEDEC ID(4)

9Fh

(MID7-MID0)

Manufacturer

(D7-D0)

Memory

Type

(D7-D0)

Capacity

Type

Enter Security

B1h

Exit Security

C1h

Read Security Register

2Bh

(SC7-SC0)

(10)

Write Security Register

2Fh

Fast Read

Quad I/O

>80 MHz

EBh

A23-A16

A15-A8

A7-A0

(M7-M0)

dummy

(D7-D0)

>104 MHz

A23-A16

A15-A8

A7-A0

(M7-M0)

dummy

(D7-D0)

Reset Enable

66h

Reset

99h

Disable QPI

FFh

Burst Read

with Wrap

>80 MHz

0Ch

A23-A16

A15-A8

A7-A0

dummy

(D7-D0)

>104 MHz

A23-A16

A15-A8

A7-A0

dummy

(D7-D0)

Set Read Parameter

C0h

P7-P0

Quad Page Program

33h

A23-A16

A15-A8

A7-A0

(D7-D0)

Table 8-5.

Instruction Set Table 4 (QPI instruction) (continued)

Instruction Name

Byte 0

Byte 1

Byte 2

Byte 3

Byte 4

Byte 5

Byte 6

Byte 7

Byte 8

(Clock Number)

(0 – 1)

(2 - 3)

(4 - 5)

(6 - 7)

(8 - 9)

(10 - 11)

(12 - 13)

(14 - 15)

(16 - 17)

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