IS25LE512MG-RMLA2:PTY datasheet(84/194 Pages) ISSI

84 / 194 page

IS25LE512MG

IS25WE512MG

Integrated Silicon Solution, Inc.- www.issi.com

Rev. A6

10/02/2025

8.10 PAGE PROGRAM OPERATION (PP, 02h or 4PP, 12h)

The Page Program (PP/4PP) instruction allows up to 256/512 bytes data to be programmed into memory in a single

operation. The destination of the memory to be programmed must be outside the protected memory area set by

the Block Protection bits (BP3, BP2, BP1, BP0) or ASP. A PP/4PP instruction which attempts to program into a

page that is write-protected will be ignored. Before the execution of PP/4PP instruction, the Write Enable Latch

(WEL) must be enabled through a Write Enable (WREN) instruction.

• 02h (EXTADD=0) is followed by a 3-byte address (A23-A0) or

• 02h (EXTADD=1) is followed by a 4-byte address (A31-A0) or

• 12h is followed by a 4-byte address (A31-A0)

The PP/4PP instruction code, three or four address bytes as above and program data (1 to 256/512 bytes) are

input via the SI line. Program operation will start immediately after the CE# is brought high, otherwise the PP/4PP

instruction will not be executed. The internal control logic automatically handles the programming voltages and

timing. The progress or completion of the program operation can be determined by reading the WIP bit. If the WIP

bit is “1”, the program operation is still in progress. If WIP bit is “0”, the program operation has completed.

If more than 256/512 bytes data are sent to a device, the address counter rolls over within the same page, the

previously latched data are discarded, and the last 256/512 bytes are kept to be programmed into the page. The

starting byte can be anywhere within the page. When the end of the page is reached, the address will wrap around

to the beginning of the same page. If the data to be programmed are less than a full page, the data of all other

bytes on the same page will remain unchanged.

Note: A program operation can alter “1”s into “0”s, but an erase operation is required to change “0”s back to “1”s.

When ECC is ON, ECC protection applied on each 128-bit boundary, so the device only allows a single

programming operation to each 16-byte boundary between erase operations. Incremental programming is not

allowed and ignored.

IS25LE512MG-RMLA2:PTY Datasheet(PDF) 84 Page - Integrated Silicon Solution, Inc