ACE25AA128GFMLTH datasheet(52/71 Pages) ACE

Part #	ACE25AA128GFMLTH

Description	Serial NOR Flash Memory 128 Megabits 3.0V Quad I/O Serial Flash Memory with 4KB Uniform Sector

PDF	71 Pages

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Manufacturer	ACE [ACE Technology Co., LTD.]

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

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ACE25AA128G

Serial NOR Flash Memory

128 Megabits 3.0V Quad I/O Serial Flash Memory with 4KB Uniform Sector

VER 1.1

Enable QPI (38H)

The device support both Standard/Dual/Quad SPI and QPI mode. The “Enable QPI (38H)” command can

switch the device from SPI mode to QPI mode. See the command Table 2a for all support QPI commands.

In order to switch the device to QPI mode, the Quad Enable (QE) bit in Status Register-1 must be set to 1

first, and “Enable QPI (38H)” command must be issued. If the QE bit is 0, the “Enable QPI (38H)”

command will be ignored and the device will remain in SPI mode. When the device is switched from SPI

mode to QPI mode, the existing Write Enable Latch and Program/Erase Suspend status, and the Wrap

Length setting will remain unchanged.

Figure39. Burst Read With Wrap Command Sequence Diagram

Figure40. Enable QPI Mode Command Sequence Diagram

ACE25AA128GFMLTH Datasheet(PDF) 52 Page - ACE Technology Co., LTD.