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CY28301
Document #: 38-07011 Rev. *C
Page 10 of 15
DC Electrical Characteristics[2]
DC parameters must be sustainable under steady state (DC) conditions.
Bit 5
–
Reserved
0
Reserved
Bit 4
–
Reserved
0
Reserved
Bit 3
–
Reserved
0
Reserved
Bit 2
–
Reserved
0
Reserved
Bit 1
–
Reserved
0
Reserved
Table 5. Frequency Selections through HW Strap Option and Serial Data Interface Data Bytes
Input Conditions
Output Frequency
FS1
FS0
CPU
SDRAM
3V66
PCI
APIC
SEL1
SEL0
0
0
66.6
100.0
66.6
33.3
16.6
0
1
100.0
100.0
66.6
33.3
16.6
1
0
133.3
133.3
66.6
33.3
16.6
1
1
133.3
100.0
66.6
33.3
16.6
Byte 17: Reserved Register (continued)
Bit
Pin#
Name
Default
Description
Absolute Maximum DC Power Supply
Parameter
Description
Min.
Max.
Unit
VDDQ3
3.3V Core Supply Voltage
–0.5
4.6
V
VDDQ2
2.5V I/O Supply Voltage
–0.5
3.6
V
TS
Storage Temperature
–65
150
°C
Absolute Maximum DC I/O
Parameter
Description
Min.
Max.
Unit
Vi/o3
3.3V Core Supply Voltage
–0.5
4.6
V
Vi/o3
2.5V I/O Supply Voltage
–0.5
3.6
V
ESD prot.
Input ESD Protection
2000
V
DC Operating Requirements
Parameter
Description
Condition
Min.
Max.
Unit
VDD3
3.3V Core Supply Voltage
3.3V ±5%
3.135
3.465
V
VDDQ3
3.3V I/O Supply Voltage
3.3V ±5%
3.135
3.465
V
VDDQ2
2.5V I/O Supply Voltage
2.5V ±5%
2.375
2.625
V
VDD3 = 3.3V ±5%
Vih3
3.3V Input High Voltage
VDD3
2.0
VDD + 0.3
V
Vil3
3.3V Input Low Voltage
VSS – 0.3
0.8
V
Iil
Input Leakage Current[3]
0 < Vin <VDD3
–5+5
µA
VDDQ2 = 2.5V ±5%
Voh2
2.5V Output High Voltage
Ioh = (–1 mA)
2.0
V
Vol2
2.5V Output Low Voltage
Iol = (1 mA)
0.4
V
Note:
2.
Multiple Supplies: The voltage on any input or I/O pin cannot exceed the power pin during power-up. Power supply sequencing is NOT required.
3.
Input leakage current does not include inputs with pull-up or pull-down resistors.
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