AT93C56A(2006) データシートの表示（PDF） - Atmel Corporation
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AT93C56A Datasheet PDF : 20 Pages
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Table 4. AC Characteristics
Applicable over recommended operating range from TAI = −40°C to + 85°C, VCC = As Specified,
CL = 1 TTL Gate and 100 pF (unless otherwise noted)
Symbol
Parameter
Test Condition
Min
Typ
fSK
SK Clock
Frequency
4.5V ≤ VCC ≤ 5.5V
2.7V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
0
0
0
tSKH
SK High Time
2.7V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
250
1000
tSKL
SK Low Time
2.7V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
250
1000
tCS
Minimum CS
Low Time
2.7V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
250
1000
tCSS
CS Setup Time
Relative to SK
2.7V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
50
200
tDIS
DI Setup Time
Relative to SK
2.7V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
100
400
tCSH
CS Hold Time
Relative to SK
0
tDIH
DI Hold Time
Relative to SK
2.7V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
100
400
tPD1
Output Delay to “1” AC Test
2.7V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
tPD0
Output Delay to “0” AC Test
2.7V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
tSV
CS to Status Valid AC Test
2.7V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
tDF
CS to DO in High
Impedance
AC Test
CS = VIL
2.7V ≤ VCC ≤ 5.5V
1.8V ≤ VCC ≤ 5.5V
tWP
Write Cycle Time
1.8V ≤ VCC ≤ 5.5V
0.1
3
Endurance(1)
5.0V, 25°C
1M
Note: 1. This parameter is characterized and is not 100% tested.
Max
2
1
0.25
250
1000
250
1000
250
1000
150
400
10
Units
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
Write Cycles
4 AT93C56A/66A
3378K–SEEPR–12/06
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