AT25QL321 datasheet(20/82 Pages) RENESAS

20 / 82 page

DS-AT25QL321-131 Rev. D

Page 20

Nov 1, 2022

AT25QL321 Datasheet

Notes:

1. 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.

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

3. 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.

4. See Manufacturer and Device Identification table for Device ID information.

5. 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

6. Dual Output data

IO0 = (D6, D4, D2, D0)

IO1 = (D7, D5, D3, D1)

7. 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, x

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

O3 = x, x, x, x, x, x, x

8. Quad Input/ Output Data

IO0 = (D4, D0…)

IO1 = (D5, D1…)

IO2 = (D6, D2…)

IO3 = (D7, D3…)

9. 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

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

>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 9. Command Set Table 4 (QPI command) (Continued)

Command Name

Byte

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 -

(14 -

(16 -

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