Fremont Micro Devices 93C46/A, 93C56/A, 93C66/A
© 2013 Fremont Micro Devices Inc. Confidential Rev. 0.8 DS93CXX-A-page9
AC CHARACTERISTICS
Applicable over recommended operating range from: T
AI
= -40°C to +85°C, V
CC
= +1.8V to +5.5V, T
AC
= 0°C
to +70°C, V
CC
= +1.8V to +5.5V (unless otherwise noted).
Symbol Parameter Test Condition Min Typ Max Units
f
SCL
SCL Clock Frequency
4.5V ≤ V
CC
≤ 5.5V
2.7V ≤ V
CC
≤ 5.5V
1.8V ≤ V
CC
≤ 5.5V
0
0
0
2
1
0.25
MHz
t
SCLH
SCL High Time
4.5V ≤ V
CC
≤ 5.5V
2.7V ≤ V
CC
≤ 5.5V
1.8V ≤ V
CC
≤ 5.5V
250
250
1000
ns
t
SCLL
SCL Low Time
4.5V ≤ V
CC
≤ 5.5V
2.7V ≤ V
CC
≤ 5.5V
1.8V ≤ V
CC
≤ 5.5V
250
250
1000
ns
t
CS
Minimum CS Low Time
4.5V ≤ V
CC
≤ 5.5V
2.7V ≤ V
CC
≤ 5.5V
1.8V ≤ V
CC
≤ 5.5V
250
250
1000
ns
t
CSS
CS Setup Time Relative to SCL
4.5V ≤ V
CC
≤ 5.5V
2.7V ≤ V
CC
≤ 5.5V
1.8V ≤ V
CC
≤ 5.5V
50
50
200
ns
t
DIS
DI Setup Time Relative to SCL
4.5V ≤ V
CC
≤ 5.5V
2.7V ≤ V
CC
≤ 5.5V
1.8V ≤ V
CC
≤ 5.5V
100
100
400
ns
t
CSH
CS Hold Time Relative to SCL 0 ns
t
DIH
DI Hold Time Relative to SCL
4.5V ≤ V
CC
≤ 5.5V
2.7V ≤ V
CC
≤ 5.5V
1.8V ≤ V
CC
≤ 5.5V
100
100
400
ns
t
PD1
Output Delay to ‘1’ AC Test
4.5V ≤ V
CC
≤ 5.5V
2.7V ≤ V
CC
≤ 5.5V
1.8V ≤ V
CC
≤ 5.5V
250
250
1000
ns
t
PD0
Output Delay to ‘0’ AC Test
4.5V ≤ V
CC
≤ 5.5V
2.7V ≤ V
CC
≤ 5.5V
1.8V ≤ V
CC
≤ 5.5V
250
250
1000
ns
t
SV
CS to Status Valid AC Test
4.5V ≤ V
CC
≤ 5.5V
2.7V ≤ V
CC
≤ 5.5V
1.8V ≤ V
CC
≤ 5.5V
250
250
1000
ns
t
DF
CS to DO in High
Impedance
AC Test CS = V
IL
4.5V ≤ V
CC
≤ 5.5V
2.7V ≤ V
CC
≤ 5.5V
1.8V ≤ V
CC
≤ 5.5V
100
100
400
ns
t
WC
Write Cycle Time
4.5V ≤ V
CC
≤ 5.5V
3 10 ms
