ACE25AA320GFMTH datasheet(22/67 Pages) ACE

Part #	ACE25AA320GFMTH

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

PDF	67 Pages

Scroll/Zoom	100%

Manufacturer	ACE [ACE Technology Co., LTD.]

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

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ACE25AA320G

Serial NOR Flash Memory

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

VER 1.2

Fast Read (0BH) in QPI Mode

The Fast Read command is also supported in QPI mode. In QPI mode, the number of dummy clocks is

configured by the “Set Read Parameters (C0H)” command to accommodate a wide range application with

different needs for either maximum Fast Read frequency or minimum data access latency. Depending on

the Read Parameter Bits P[5:4] setting, the number of dummy clocks can be configured as either 4/6/8.

When the dummy cycle is configured to 4, addr [0] input must be 0.

Dual Output Fast Read (3BH )

The Dual Output Fast Read command is followed by 3-byte address (A23-A0) and a dummy byte, each

bit being latched in during the rising edge of SCLK, then the memory contents are shifted out 2-bit per

clock cycle from SI and SO. The command sequence is shown in Figure 8. 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.

Figure8. Dual Output Fast Read Sequence Diagram

Figure7a. Read Data Bytes at Higher Speed Sequence Diagram (QPI)

ACE25AA320GFMTH Datasheet(PDF) 22 Page - ACE Technology Co., LTD.