ACE25AA640GFMTH datasheet(43/65 Pages) ACE

Part #	ACE25AA640GFMTH

Description	Serial NOR Flash Memory 3.0V Multi I/O with 4KB, 32KB & 64KB Sector/Block Erase

PDF	65 Pages

Scroll/Zoom	100%

Manufacturer	ACE [ACE Technology Co., LTD.]

Direct Link	http://www.ace-ele.com

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43 / 65 page

ACE25AA640G

Serial NOR Flash Memory

3.0V Multi I/O with 4KB, 32KB & 64KB Sector/Block Erase

VER 1.1

Address

A23-A16

A15-A8

A7-A0

Security Registers 0

00H

Byte Address

Security Registers 1

00H

01H

Byte Address

Security Registers 2

00H

02H

Byte Address

Security Registers 3

00H

03H

Byte Address

Read Security Registers (48H)

The Read Security Registers command is similar to Fast Read command. The command is followed by a

3- byte address (A23-A0) and a dummy byte, each bit being latched-in during the rising edge of SCLK.

Then the memory content, at that address, is shifted out on SO, each bit being shifted out, at a Max

frequency fC, during the falling edge of SCLK. The first byte addressed can be at any location. The

address is automatically incremented to the next address after each byte of data is shifted out. Once the

A9-A0 address reaches the last byte of the register (Byte 3FFH), it will reset to 000H, the command is

completed by driving CS# high.

Address

A23-A16

A15-A10

A9-A0

Security Register

00000000

000000

Address

Figure27. Program Security Registers command Sequence Diagram

ACE25AA640GFMTH Datasheet(PDF) 43 Page - ACE Technology Co., LTD.