©2014 Silicon Storage Technology, Inc. DS20005016C 11/14
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512 Kbit / 1 Mbit / 2 Mbit / 4 Mbit 1.8V SPI Serial Flash
SST25WF512 / SST25WF010 / SST25WF020 / SST25WF040
EOL Data Sheet
AC Characteristics
Table 19: AC Operating Characteristics
Limits - 20 MHz Limits - 40 MHz
Symbol Parameter Min Max Min Max Units
F
CLK
1
1. Maximum clock frequency for Read instruction, 03H, is 20 MHz
Serial Clock Frequency 20 40 MHz
T
SCKH
Serial Clock High Time 20 11 ns
T
SCKL
Serial Clock Low Time 20 11 ns
T
SCKR
Serial Clock Rise Time 5 5 ns
T
SCKF
Serial Clock Fall Time 5 5 ns
T
CES
2
2. Relative to SCK
CE# Active Setup Time 20 8 ns
T
CEH
2
CE# Active Hold Time 20 8 ns
T
CHS
2
CE# Not Active Setup Time 10 10 ns
T
CHH
2
CE# Not Active Hold Time 10 10 ns
T
CPH
CE# High Time 50 25 ns
T
CHZ
CE# High to High-Z Output 20 19 ns
T
CLZ
SCK Low to Low-Z Output 0 0 ns
T
DS
Data In Setup Time 5 2 ns
T
DH
Data In Hold Time 5 5 ns
T
HLS
HOLD# Low Setup Time 10 8 ns
T
HHS
HOLD# High Setup Time 10 8 ns
T
HLH
HOLD# Low Hold Time 15 12 ns
T
HHH
HOLD# High Hold Time 10 10 ns
T
HZ
HOLD# Low to High-Z Output 20 20 ns
T
LZ
HOLD# High to Low-Z Output 20 20 ns
T
OH
Output Hold from SCK Change 0 0 ns
T
V
Output Valid from SCK 20 9 ns
T
SE
Sector-Erase 75 75 ms
T
BE
Block-Erase 75 75 ms
T
SCE
Chip-Erase 150 150 ms
T
BP
3
3. AAI-Word Program T
BP
maximum specification is also at 60 µs maximum time
Byte-Program 60 60 µs
T19.1 20005016
