Serial Quad I/O (SQI) Flash Memory
SST26VF016 / SST26VF032
Data Sheet
Instructions
Instructions are used to read, write (erase and program), and configure the SST26VF016/032. The
instruction bus cycles are two nibbles each for commands (Op Code), data, and addresses. Prior to
executing any write instructions, the Write-Enable (WREN) instruction must be executed. The com-
plete list of the instructions is provided in Table 3.
All instructions are synchronized off a high to low transition of CE#. Inputs are accepted on the rising
edge of SCK starting with the most significant nibble. CE# must be driven low before an instruction is
entered and must be driven high after the last nibble of the instruction has been input (except for read
instructions). Any low-to-high transition on CE# before receiving the last nibble of an instruction bus
cycle, will terminate the instruction being entered and return the device to the standby mode.
Table 3: Device Operation Instructions for SST26VF016/032 (1 of 2)
Command
Cycle1
Address Dummy
Data
Maximum
Instruction
NOP
Description
Cycle(s)2 Cycle(s) Cycle(s) Frequency
No Operation
00H
66H
99H
38H
FFH
03H
0BH
0
0
0
0
0
3
3
0
0
0
0
0
0
1
0
RSTEN
RST3
Reset Enable
0
Reset Memory
0
0
80 MHz
33 MHz
EQIO
Enable Quad I/O
Reset Quad I/O
Read Memory
RSTQIO4
Read5
0
1 to ∞
1 to ∞
High-Speed
Read5
Read Memory at Higher Speed
Set Burst6
Read Burst
Read PI7
Set Burst Length
C0H
0CH
08H
0
3
1
0
1
1
1
nB Burst with Wrap
n to ∞
1 to ∞
Jump to address within 256
Byte page indexed by n
Read I
Jump to address within block
indexed by n
09H
2
2
1 to ∞
Read BI
Jump to block Indexed by n
JEDEC-ID Read
10H
9FH
AFH
20H
D8H
1
0
0
3
3
2
0
0
0
0
1 to ∞
3 to ∞
3 to ∞
0
JEDEC-ID 5,8
Quad J-ID8
Sector Erase9
Block Erase10
Quad I/O J-ID Read
Erase 4 KBytes of Memory Array
80 MHz
Erase 64, 32 or 8 KBytes of
Memory Array
0
Chip Erase
Page Program
Write Suspend
Write Resume
Read SID
Program SID11
Lockout SID11
RDSR12
Erase Full Array
C7H
02H
B0H
30H
88H
A5H
85H
05H
06H
04H
0
3
0
0
1
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
Program 1 to 256 Data Bytes
Suspends Program/Erase
Resumes Program/Erase
Read Security ID
1 to 256
0
0
1 to 32
1 to 24
0
Program User Security ID area
Lockout Security ID Programming
Read Status Register
Write Enable
1 to ∞
0
WREN
WRDI
Write Disable
0
©2010 Silicon Storage Technology, Inc.
S71359-05-000
06/10
11
SST [ SILICON STORAGE TECHNOLOGY, INC ]
