W48S87(1999) 查看數據表（PDF） - Cypress Semiconductor
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W48S87 Datasheet PDF : 21 Pages
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PRELIMINARY
W48S87-04
3.3V DC Electrical Characteristics (CPU3.3#_2.5 Input = 0) (continued)
TA = 0°C to +70°C, VDD1:3 = VDDL1:2 = 3.3V±5% (3.135–3.465V)
Parameter
Description
Test Condition
IOH
Output High Current
CPU0:3[10]
VOH = 1.5V
SDRAM0:11
PCI_F, PCI0:5
IOAPIC
REF0
REF1
48/24MHZ
Pin Capacitance/Inductance
CIN
Input Pin Capacitance
COUT
Output Pin Capacitance
LIN
Input Pin Inductance
Serial Input Port
Except X1 and X2
VIL
Input Low Voltage
VIH
Input High Voltage
IIL
Input Low Current
VDD = 3.3V
VDD = 3.3V
No internal pull-up/down
on SCLOCK
IIH
Input High Current
No internal pull-up/down
on SCLOCK
IOL
Sink Current into SDATA,
IOL = 0.3VDD
Open Drain N-Channel Device On
CIN
Input Capacitance of SDATA and
SCLOCK
CSDATA
CSCLOCK
Total Capacitance of SDATA Bus
Total Capacitance of SCLOCK Bus
Min.
55
80
55
100
60
45
55
0.7VDD
6
Typ.
85
120
85
150
85
65
85
Max.
Unit
125
mA
175
125
220
110
90
125
5
pF
6
pF
7
nH
0.3VDD
V
V
10
µA
10
µA
mA
10
pF
400
pF
400
pF
2.5V DC Electrical Characteristics (CPU3.3#_2.5 Input = 1)
TA = 0°C to +70°C, VDD1:3 = 3.3V±5% (3.135–3.456V), VDDL1:2 = 2.5V±5% (2.375–2.625V)
Parameter
Description
Test Condition
Min.
Supply Current
IDD-3.3V
3.3V Supply Current
CPU0:3 = 66.4 MHz
Outputs Loaded[8]
IDD-2.5
2.5V Supply Current
CPU0:3= 66.4 MHz
Outputs Loaded[8]
Logic Inputs
VIL
Input Low Voltage
VIH
Input High Voltage
2.0
IIL
Input Low Current[9]
IIH
Input High Current[9]
Typ.
Max.
Unit
300
mA
50
mA
0.8
V
V
10
µA
10
µA
15
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