AT45DB321E datasheet(39/70 Pages) DIALOG

39 / 70 page

AT45DB321E

8784L–DFLASH–3/2019

13.

Operation Mode Summary

The commands described previously can be grouped into four different categories to better describe which commands

can be executed at what times.

Group A commands consist of:

Main Memory Page Read

Continuous Array Read (SPI)

Read Sector Protection Register

Read Sector Lockdown Register

Read Security Register

Buffer 1 (or 2) Read

Group B commands consist of:

Page Erase

Block Erase

Sector Erase

Chip Erase

Main Memory Page to Buffer 1 (or 2) Transfer

Main Memory Page to Buffer 1 (or 2) Compare

Buffer 1 (or 2) to Main Memory Page Program with Built-In Erase

Buffer 1 (or 2) to Main Memory Page Program without Built-In Erase

Main Memory Page Program through Buffer 1 (or 2) with Built-In Erase

10. Main Memory Byte/Page Program through Buffer 1 without Built-In Erase

11. Auto Page Rewrite

Group C commands consist of:

Buffer 1 (or 2) Write

Status Register Read

Manufacturer and Device ID Read

Group D commands consist of:

Erase Sector Protection Register

Program Sector Protection Register

Sector Lockdown

Program Security Register

Buffer and Page Size Configuration

Freeze Sector Lockdown

If a Group A command is in progress (not fully completed), then another command in Group A, B, C, or D should not be

started. However, during the internally self-timed portion of Group B commands, any command in Group C can be

executed. The Group B commands using Buffer 1 should use Group C commands using Buffer 2 and vice versa. Finally,

during the internally self-timed portion of a Group D command, only the Status Register Read command should be

executed.

Most of the commands in Group B can be suspended and resumed, except the Buffer Transfer, Buffer Compare, and

Auto Page Rewrite operations. If a Group B command is suspended, all of the Group A commands can be executed. See

Table 6-4 to determine which of the Group B, Group C, and Group D commands are allowed.

AT45DB321E 数据表(PDF) 39 Page - Dialog Semiconductor

AT45DB321E 数据表(HTML) 39 Page - Dialog Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70

数据表下载