Datasheet

16 Mbit SPI Serial Flash

SST25VF016B

Data Sheet

Microchip Technology Company

Auto Address Increment (AAI)

The Auto Address Increment Programming-Status bit provides status on whether the device is in Auto

Address Increment (AAI) programming mode or Byte-Program mode. The default at power up is Byte-

Program mode.

Block Protection (BP3,BP2, BP1, BP0)

The Block-Protection (BP3, BP2, BP1, BP0) bits define the size of the memory area, as defined in

Table 4, to be software protected against any memory Write (Program or Erase) operation. The Write-

Status-Register (WRSR) instruction is used to program the BP3, BP2, BP1 and BP0 bits as long as

WP# is high or the Block-Protect-Lock (BPL) bit is 0. Chip-Erase can only be executed if Block-Protec-

tion bits are all 0. After power-up, BP3, BP2, BP1 and BP0 are set to 1.

Block Protection Lock-Down (BPL)

WP# pin driven low (V

), enables the Block-Protection-Lock-Down (BPL) bit. When BPL is set to 1, it

prevents any further alteration of the BPL, BP3, BP2, BP1, and BP0 bits. When the WP# pin is driven

high (V

), the BPL bit has no effect and its value is “Don’t Care”. After power-up, the BPL bit is reset to

Table 4: Software Status Register Block Protection for SST25VF016B

1. X = Don’t Care (RESERVED) default is “0

Protection Level

Status Register Bit

2. Default at power-up for BP2, BP1, and BP0 is ‘111’. (All Blocks Protected)

Protected Memory Address

BP3 BP2 BP1 BP0 16 Mbit

None X 0 0 0 None

Upper 1/32 X 0 0 1 1F0000H-1FFFFFH

Upper 1/16 X 0 1 0 1E0000H-1FFFFFH

Upper 1/8 X 0 1 1 1C0000H-1FFFFFH

Upper 1/4 X 1 0 0 180000H-1FFFFFH

Upper 1/2 X 1 0 1 100000H-1FFFFFH

All Blocks X 1 1 0 000000H-1FFFFFH

All Blocks X 1 1 1 000000H-1FFFFFH

T4.0 25044