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CY28158
Document #: 38-07039 Rev. *B
Page 4 of 10
Maximum Ratings
(Above which the useful life may be impaired. For user guide-
lines, not tested.)
Supply Voltage ..................................................–0.5 to +7.0V
Input Voltage .............................................. –0.5V to VDD+0.5
Storage Temperature (Non-Condensing) ... –65
°C to +150°C
Max. Soldering Temperature (10 sec) ...................... +260
°C
Junction Temperature............................................... +150
°C
Package Power Dissipation.............................................. 1W
Static Discharge Voltage
(per MIL-STD-883, Method 3015) ............................. >2000V
Operating Conditions[4] Over which Electrical Parameters are Guaranteed
Parameter
Description
Min.
Max.
Unit
VDD_REF, VDD_PCI, VDDA,
VDD_3V66, VDD_48MHZ
3.3V Supply Voltages
3.135
3.465
V
VDD_CPU
CPU Supply Voltage
2.375
2.625
V
VDD_IOAPIC
IOAPIC Supply Voltage
2.375
2.625
V
TA
Operating Temperature, Ambient
0
70
°C
CL
Max. Capacitive Load on
CPU, 48MHZ, REF, IOAPIC
PCI, 3V66
20
30
pF
f(REF)
Reference Frequency, Oscillator Nominal Value
14.318
14.318
MHz
Electrical Characteristics Over the Operating Range
Parameter
Description
Test Conditions
Min. Max. Unit
VIH
High-level Input Voltage
Except Crystal Pads. Threshold voltage for crystal pads = VDD/2
2.0
V
VIL
Low-level Input Voltage
Except Crystal Pads
0.8
V
VOH
High-level Output Voltage CPU, IOAPIC
IOH = –1 mA
2.0
V
48 MHZ, REF, PCI, 3V66
IOH = –1 mA
2.4
VOL
Low-level Output Voltage
CPU, IOAPIC
IOL = 1 mA
0.4
V
48 MHZ, REF, PCI, 3V66
IOL = 1 mA
0.4
IIH
Input High Current
0 < VIN < VDD
10
µA
IIL
Input Low Current
0 < VIN < VDD
10
µA
IOH
High-level Output Current CPU
VOH = 2.0V
–16
mA
–60
IOAPIC
VOH = 2.0V
–20
–72
48 MHZ, REF
VOH = 2.4V
–15
–51
3V66, PCI
VOH = 2.4V
–30
–100
IOL
Low-level Output Current
CPU
VOL = 0.4V
19
mA
49
IOAPIC
VOL = 0.4V
25
58
48 MHZ, REF
VOL = 0.4V
10
24
3V66, PCI
VOL = 0.4V
20
49
IOZ
Output Leakage Current
Three-state
10
µA
IDD2
2.5V Power Supply Cur-
rent
VDDA/VDD33 = 3.465V, VDD25 = 2.625V, FCPU = 133 MHz
90
mA
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