IS25LE01G-RILA3 datasheet(42/186 Pages) ISSI

42 / 186 page

IS25LE01G

IS25WE01G

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

Rev. A6

01/14/2025

Figure 7.1 Advanced

Sector/Block Protection

DYB 0

DYB 1

DYB 2

DYB 3

Sector/Block 0

Sector/Block 1

Sector/Block 2

Sector/Block 3

PPB 0

PPB 1

PPB 2

PPB 3

DYB N-3

DYB N-2

DYB N-1

DYB N

Sector/Block N-3

Sector/Block N-2

Sector/Block N-1

Sector/Block N

PPB N-3

PPB N-2

PPB N-1

PPB N

0 = Locked

64-bit Password

(OTP)

Password Protection

Mode (ASPR[2]=0

Persistent Protection

Mode (ASPR[1]=0

ASP Register Bits (OTP)

PPB

Memory Array

DYB

1. 0 = Sector/Block Protected

1 = Sector/Block Unprotected (default)

DYBs are volatile and defaults to “1”

after power-up

1. 0 = Sector/Block Protected

1 = Sector/Block Unprotected

2. PPB bits are programmed individually,

but erased collectively

The bit defaults to “1” (Persistent Protection mode)

or “0” (Password Protection mode) upon reset.

“0” locks all PPB bits to their current state.

3. Password Protection mode requires a password to

set PPB Lock bit to “1” to enable program or

erase of PPB bits.

4. Persistent Protection mode only allows PPB Lock

bit to be cleared to “0” to prevent program or erase

PPB bits. Power off or hardware reset is required to

set PPB Lock bit to “1”.

1 = Unocked

PPB Lock Bit

(Volatile)

Notes:

1. 1Gb (64KB Block): N = 2077 = 32 (32xTop 4KB sectors or 32xBottom 4KB sectors) + 2046 (2046x64KB blocks) - 1

2. 1Gb (256KB Block): N = 511 = 0 + 512 (512x256KB blocks) - 1

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