S29CD032J datasheet(44/81 Pages) SPANSION

Part #	S29CD032J

Description	32/16 Megabit CMOS 2.6 Volt or 3.3 Volt-Only Simultaneous Read/Write, Dual Boot, Burst Mode Flash Memory with VersatileI/O?

PDF	81 Pages

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Manufacturer	SPANSION [SPANSION]

Direct Link	http://www.spansion.com

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44 / 81 page

S29CD-J and S29CL-J Flash Family

S29CD-J_CL-J_00_B7 October 11, 2012

Da ta

Sh e e t

Figure 9.1 Advanced Sector Protection/Unprotection

Hardware MethodsSoftware Methods

WP# = VIL

(Two outermost sectors

locked in large bank)

PPB Lock Bit

1,2,3

64-bit Password

(One Time Protect)

1 = PPBs Locked

0 = PPBs Unlocked

Memory Array

Sector Group 0

Sector Group 1

Sector Group 2

Sector Group N-2

Sector Group N-1

Sector Group N

PPB 0

PPB 1

PPB 2

PPB N-2

PPB N-1

PPB N

Persistent

Protection Bit

(PPB)

5,6

DYB 0

DYB 1

DYB 2

DYB N-2

DYB N-1

DYB N

Dynamic

Protection Bit

(DYB)

7,8,9

7. Protect effective only if PPB Lock Bit is

unlocked and corresponding PPB is “0”

(unprotected).

8. Volatile Bits.

9. 0 = Sector Group Unprotected;

1 = Sector Group Protected

5. PPBs programmed individually,

but cleared collectively.

6. 0 = Sector Group Unprotected;

1 = Sector Group Protected

1. Bit is volatile, and defaults to “0” on reset.

2. Programming to “1” locks all PPBs to their

current state.

3. Once programmed to “1”, requires hardware

reset to unlock.

4. N = 23 for S29CD016J/CL016J,

31 for S29CD032J/CL032J.

Password Method

Persistent Method

S29CD032J Datasheet(PDF) 44 Page - SPANSION

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