4 Mbit SPI Serial Flash
SST25VF040B
Data Sheet
TABLE 13: AC Operating Characteristics (25VF040B-50-xx-xxxF)
25 MHz
50 MHz
Symbol
Parameter
Serial Clock Frequency
Min
Max
Min
Max
1
FCLK
25
50
TSCKH
TSCKL
Serial Clock High Time
Serial Clock Low Time
Serial Clock Rise Time (Slew Rate)
Serial Clock Fall Time (Slew Rate)
CE# Active Setup Time
CE# Active Hold Time
CE# Not Active Setup Time
CE# Not Active Hold Time
CE# High Time
18
18
0.1
0.1
5
9
9
2
TSCKR
0.1
0.1
5
TSCKF
3
TCES
3
TCEH
5
5
3
TCHS
5
5
3
TCHH
5
5
TCPH
TCHZ
TCLZ
TDS
50
50
CE# High to High-Z Output
SCK Low to Low-Z Output
Data In Setup Time
15
8
0
2
5
5
5
5
5
0
2
5
5
5
5
5
TDH
THLS
THHS
THLH
THHH
THZ
Data In Hold Time
HOLD# Low Setup Time
HOLD# High Setup Time
HOLD# Low Hold Time
HOLD# High Hold Time
HOLD# Low to High-Z Output
HOLD# High to Low-Z Output
Output Hold from SCK Change
Output Valid from SCK
Sector-Erase
8
8
8
TLZ
12
TOH
TV
0
0
8
8
TSE
25
25
50
10
25
25
50
TBE
Block-Erase
TSCE
TBP
Chip-Erase
Byte-Program
10
T13.0 1295
1. Maximum clock frequency for Read Instruction, 03H, is 25 MHz
2. Maximum Rise and Fall time may be limited by TSCKH and TSCKL requirements
3. Relative to SCK.
©2009 Silicon Storage Technology, Inc.
S71295-05-000
10/09
24
SST [ SILICON STORAGE TECHNOLOGY, INC ]
