8
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
Rev. A
11/12/02
IS93C46A
IS93C56A
IS93C66A
ISSI
AC ELECTRICAL CHARACTERISTICS
TA = –40°C to +85°C for Industrial
Symbol
Parameter
Test Conditions
Vcc
Min.
Max.
Unit
fSK
SK Clock Frequency
2.5V to 5.5V
0
1
Mhz
2.7V to 5.5V
0
1
Mhz
4.5V to 5.5V
0
2
Mhz
tSKH
SK HIGH Time
2.5V to 5.5V
500
—
ns
2.7V to 5.5V
350
—
ns
4.5V to 5.5V
250
—
ns
tSKL
SK LOW Time
2.5V to 5.5V
500
—
ns
2.7V to 5.5V
350
—
ns
4.5V to 5.5V
250
—
ns
tCS
Minimum CS LOW Time
2.5V to 5.5V
500
—
ns
2.7V to 5.5V
250
—
ns
4.5V to 5.5V
250
—
ns
tCSS
CS Setup Time
Relative to SK
2.5V to 5.5V
100
—
ns
2.7V to 5.5V
50
—
ns
4.5V to 5.5V
50
—
ns
tDIS
Din Setup Time
Relative to SK
2.5V to 5.5V
100
—
ns
2.7V to 5.5V
100
—
ns
4.5V to 5.5V
100
—
ns
tCSH
CS Hold Time
Relative to SK
2.5V to 5.5V
0
—
ns
2.7V to 5.5V
0
—
ns
4.5V to 5.5V
0
—
ns
tDIH
Din Hold Time
Relative to SK
2.5V to 5.5V
100
—
ns
2.7V to 5.5V
100
—
ns
4.5V to 5.5V
100
—
ns
tPD1
Output Delay to “1”
AC Test
2.5V to 5.5V
—
400
ns
2.7V to 5.5V
—
350
ns
4.5V to 5.5V
—
250
ns
tPD0
Output Delay to “0”
AC Test
2.5V to 5.5V
—
400
ns
2.7V to 5.5V
—
350
ns
4.5V to 5.5V
—
250
ns
tSV
CS to Status Valid
AC Test
2.5V to 5.5V
—
400
ns
2.7V to 5.5V
—
250
ns
4.5V to 5.5V
—
250
ns
tDF
CS to Dout in 3-state
AC Test, CS=VIL
2.5V to 5.5V
—
200
ns
2.7V to 5.5V
—
200
ns
4.5V to 5.5V
—
100
ns
tWP
Write Cycle Time
2.5V to 5.5V
—
10
ms
2.7V to 5.5V
—
10
ms
4.5V to 5.5V
—
5ms
Notes:
1. C L = 100pF