OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

SST26VF016-80-5I-QAE-T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39
©2011 Silicon Storage Technology, Inc. DS-25017A 04/11
7
Serial Quad I/O (SQI) Flash Memory
SST26VF016 / SST26VF032
Data Sheet
A
Microchip Technology Company
Device Protection
The SST26VF016/032 have a Block-Protection register which provides a software mechanism to write-
lock the array and write-lock, and/or read-lock, the parameter blocks. The Block-Protection Register is
48/80 bits wide per device: two bits each for the eight 8 KByte parameter blocks (write-lock and read-
lock), and one bit each for the remaining 32 KByte and 64 KByte overlay blocks (write-lock). See
Tables 8 - 9 for address range protected per register bit.
Each bit in the Block-Protection Register can be written to a ‘1’ (protected) or ‘0’ (unprotected). For the
parameter blocks, the most significant bit is for read-lock, and the least significant bit is for write-lock. Read-
locking the parameter blocks provides additional security for sensitive data after retrieval (e.g., after initial
boot). If a block is read-locked all reads to the block return data 00H. All blocks are write-locked and read-
unlocked after power-up or reset. The Write Block Locking Register command is a two cycle command
requiring Write-Enable (WREN) to be executed prior to the Write Block-Protection Register command.
Figure 6: Block Locking Memory Map
1359 F40.2
Top of Memory Block
8 KByte
8 KByte
8 KByte
8 KByte
32 KByte
64 KByte
64 KByte
64 KByte
32 KByte
8 KByte
8 KByte
8 KByte
8 KByte
Read Lock
Write Lock
Read Lock
Write Lock
Write Lock
Bottom of Memory Block
. . .
©2011 Silicon Storage Technology, Inc. DS-25017A 04/11
8
Serial Quad I/O (SQI) Flash Memory
SST26VF016 / SST26VF032
Data Sheet
A
Microchip Technology Company
Write-Protection Lock-Down
To prevent changes, the Block-Protection register can be set to Write-Protection Lock-Down using the
Lock Down Block Protection Register (LPBR) command. Once the Write-Protection Lock-Down is
enabled, the Block-Protection register can not be changed. To avoid inadvertent lock down, the WREN
command must be executed prior to the LBPR command.
To reset Write-Protection Lock-Down, power cycle the device. The Write-Protection Lock-Down status
may be read from the Status register.
Security ID
SST26VF016/032 offer a 256-bit Security ID (Sec ID) feature. The Security ID space is divided into two
parts – one factory-programmed, 64-bit segment and one user-programmable 192-bit segment. The
factory-programmed segment is programmed at SST with a unique number and cannot be changed.
The user-programmable segment is left unprogrammed for the customer to program as desired.
Use the SecID Program command to program the Security ID using the address shown in Table 7.
Once programmed, the Security ID can be locked using the Lockout Sec ID command. This prevents
any future write to the Security ID.
The factory-programmed portion of the Security ID can’t be programmed by the user; neither factory-
programmed nor user-programmable areas can be erased.
©2011 Silicon Storage Technology, Inc. DS-25017A 04/11
9
Serial Quad I/O (SQI) Flash Memory
SST26VF016 / SST26VF032
Data Sheet
A
Microchip Technology Company
Status Register
The Status register is a read-only register that provides status on whether the flash memory array is
available for any Read or Write operation, whether the device is Write enabled, and whether an erase
or program operation is suspended. During an internal Erase or Program operation, the Status register
may be read to determine the completion of an operation in progress. Table 2 describes the function of
each bit in the Status register.
Table 2: Status Register
Bit Name Function
Default at
Power-up
0 RES Reserved for future use 0
1 WEL Write-Enable Latch status
1 = Device is memory Write enabled
0 = Device is not memory Write enabled
0
2 WSE Write Suspend-Erase status
1 = Erase suspended
0 = Erase is not suspended
0
3 WSP Write Suspend-Program status
1 = Program suspended
0 = Program is not suspended
0
4 WPLD Write Protection Lock-Down status
1 = Write Protection Lock-Down enabled
0 = Write Protection Lock-Down disabled
0
5 SEC
1
1. The Security ID status will always be ‘1’ at power-up after a successful execution of the Lockout Sec ID instruction, oth-
erwise default at power-up is ‘0’.
Security ID status
1 = Security ID space locked
0 = Security ID space not locked
0
1
6 RES Reserved for future use 0
7 BUSY Write operation status
1 = Internal Write operation is in progress
0 = No internal Write operation is in progress
0
T2.0 25017
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39

SST26VF016-80-5I-QAE-T

Mfr. #:
Buy SST26VF016-80-5I-QAE-T
Manufacturer:
Microchip Technology
Description:
NOR Flash 2.7 to 3.6V 16Mbit Serial Quad I/O Flsh
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet