®
IS93C56A
IS93C66A
ISSI
AC ELECTRICAL CHARACTERISTICS
TA = –40°C to +85°C for Industrial
Symbol Parameter
TestConditions
Min.
Max.
Unit
fSK
SK Clock Frequency
1.8V ≤ Vcc < 2.5V
2.5V ≤ Vcc < 4.5V
4.5V ≤ Vcc ≤ 5.5V
0
0
0
1
2
3
Mhz
Mhz
Mhz
tSKH
tSKL
tCS
SK HIGH Time
1.8V ≤ Vcc < 2.5V
2.5V ≤ Vcc < 4.5V
4.5V ≤ Vcc ≤ 5.5V
1.8V ≤ Vcc < 2.5V
2.5V ≤ Vcc < 4.5V
4.5V ≤ Vcc ≤ 5.5V
1.8V ≤ Vcc < 2.5V
2.5V ≤ Vcc < 4.5V
4.5V ≤ Vcc ≤ 5.5V
1.8V ≤ Vcc < 2.5V
2.5V ≤ Vcc < 4.5V
4.5V ≤ Vcc ≤ 5.5V
1.8V ≤ Vcc < 2.5V
2.5V ≤ Vcc < 4.5V
4.5V ≤ Vcc ≤ 5.5V
1.8V ≤ Vcc < 2.5V
2.5V ≤ Vcc < 4.5V
4.5V ≤ Vcc ≤ 5.5V
1.8V ≤ Vcc < 2.5V
2.5V ≤ Vcc < 4.5V
4.5V ≤ Vcc ≤ 5.5V
1.8V ≤ Vcc < 2.5V
2.5V ≤ Vcc < 4.5V
4.5V ≤ Vcc ≤ 5.5V
1.8V ≤ Vcc < 2.5V
2.5V ≤ Vcc < 4.5V
4.5V ≤ Vcc ≤ 5.5V
1.8V ≤ Vcc < 2.5V
2.5V ≤ Vcc < 4.5V
4.5V ≤ Vcc ≤ 5.5V
1.8V ≤ Vcc < 2.5V
2.5V ≤ Vcc < 4.5V
4.5V ≤ Vcc ≤ 5.5V
1.8V ≤ Vcc < 2.5V
2.5V ≤ Vcc < 4.5V
4.5V ≤ Vcc ≤ 5.5V
250
200
200
—
—
—
ns
ns
ns
SK LOW Time
250
200
100
—
—
—
ns
ns
ns
Minimum CS LOW Time
CS Setup Time
250
200
200
—
—
—
ns
ns
ns
tCSS
tDIS
tCSH
tDIH
tPD1
tPD0
tSV
Relative to SK
Relative to SK
Relative to SK
Relative to SK
AC Test
200
100
50
—
—
—
ns
ns
ns
Din Setup Time
100
50
50
—
—
—
ns
ns
ns
CS Hold Time
0
0
0
—
—
—
ns
ns
ns
Din Hold Time
50
50
50
—
—
—
ns
ns
ns
Output Delay to “1”
Output Delay to “0”
CS to Status Valid
CS to Dout in 3-state
Write Cycle Time
—
—
—
400
200
100
ns
ns
ns
AC Test
—
—
—
400
200
100
ns
ns
ns
AC Test
—
—
—
400
200
200
ns
ns
ns
tDF
AC Test, CS=VIL
—
—
—
100
100
100
ns
ns
ns
tWP
—
—
—
10
5
5
ms
ms
ms
Notes:
1. C = 100pF
L
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
7
Rev. A
05/02/06