Table 3. AC Characteristics
Applicable over recommended operating range from TA = −40°C to + 125°C, VCC = As Specified, CL = 1 TTL Gate and
100 pF (unless otherwise noted)
Symbol
Parameter
Test Condition
Min
Typ
Max
Units
fSK
SK Clock
Frequency
4.5V ≤ VCC ≤ 5.5V
0
2.7V ≤ VCC ≤ 5.5V
0
2
1
MHz
tSKH
SK High Time
4.5V ≤ VCC ≤ 5.5V
250
2.7V ≤ VCC ≤ 5.5V
250
ns
tSKL
SK Low Time
4.5V ≤ VCC ≤ 5.5V
250
2.7V ≤ VCC ≤ 5.5V
250
ns
tCS
Minimum CS
Low Time
4.5V ≤ VCC ≤ 5.5V
250
2.7V ≤ VCC ≤ 5.5V
250
ns
tCSS
CS Setup Time
Relative to SK
4.5V ≤ VCC ≤ 5.5V
2.7V ≤ VCC ≤ 5.5V
50
50
ns
tDIS
DI Setup Time
Relative to SK
4.5V ≤ VCC ≤ 5.5V
2.7V ≤ VCC ≤ 5.5V
100
100
ns
tCSH
CS Hold Time
Relative to SK
0
ns
tDIH
DI Hold Time
Relative to SK
4.5V ≤ VCC ≤ 5.5V
2.7V ≤ VCC ≤ 5.5V
100
100
ns
tPD1
Output Delay to “1”
AC Test
4.5V ≤ VCC ≤ 5.5V
2.7V ≤ VCC ≤ 5.5V
250
500
ns
tPD0
Output Delay to “0”
AC Test
4.5V ≤ VCC ≤ 5.5V
2.7V ≤ VCC ≤ 5.5V
250
500
ns
tSV
CS to Status Valid
AC Test
4.5V ≤ VCC ≤ 5.5V
2.7V ≤ VCC ≤ 5.5V
250
250
ns
tDF
CS to DO in High
Impedance
AC Test
CS = VIL
4.5V ≤ VCC ≤ 5.5V
2.7V ≤ VCC ≤ 5.5V
100
150
ns
tWP
Endurance(1)
Write Cycle Time
5.0V, 25°C
2.7V ≤ VCC ≤ 5.5V
0.1
3
10
ms
1M
Write Cycles
Note: 1. This parameter is characterized and is not 100% tested.
4 AT93C56A/66A
5091D–SEEPR–2/07