ACE25QC200GLTMTH datasheet(37/64 Pages) ACE

37 / 64 page

ACE25QC200GL

2M BIT SPI NOR FLASH

VER 1.1

Quad Page Program (32h)

The Quad Page Program instruction allows up to 256 bytes of data to be programmed at previously erased

(FFh) memory locations using two pins: SI, SO, /WP, and /HOLD. The Quad Page Program can improve

performance for PROM Programmer and applications that have slow clock speeds <5MHz. Systems with

faster clock speed will not realize much benefit for the Quad Page Program instruction since the inherent

page program time is much longer than the time it take to clock-in the data.

To use Quad Page Program the Quad Enable (QE) bit in Status Register-2 must be set to 1. A Write Enable

instruction must be executed before the device will accept the Quad Page Program instruction (Status

“32h” followed by a 24-bit address (A23-A0) and at least one data byte, into the IO pins. The /CS pin must

be held low for the entire length of the instruction while data is being sent to the device. All other functions

of Quad Page Program are identical to standard Page Program. The Quad Page Program instruction

sequence is shown in Figure27.

Figure27. Quad Input Page Program Instruction

ACE25QC200GLTMTH Datasheet(PDF) 37 Page - ACE Technology Co., LTD.