CY28325-3
Table 6. Examples of N and M Value for Different CPU Frequency Range
Fixed Value for
Range of N-Value Register
for Different CPU Frequency
Frequency Ranges
50 MHz–129 MHz
130 MHz–248 MHz
Gear Constants
M-Value Register
48.00741
93
45
97 - 255
48.00741
127 - 245
Absolute Maximum Conditions[2]
Parameter
Description
Condition
Min.
Max.
Unit
V
DD, VDDC, 3.3V Supply Voltage
Maximum functional voltage
–0.5
5.5
V
VDDA, VDDX
VDDQ
VIN
Analog Supply Voltage
Maximum functional voltage
Relative to V SS
–0.5
–0.5
–65
0
5.5
VDD + 0.5
150
V
V
Input Voltage
TS
Temperature, Storage
Non-functional
°C
TA
Temperature, Operating Ambient
Temperature, Junction
Functional
70
°C
TJ
Functional
150
°C
ESDHBM
ØJC
ESD Protection (Human Body Model)
Dissipation, Junction to Case
Dissipation, Junction to Ambient
Flammability Rating
MIL-STD-883, Method 3015
Mil-Spec 883E Method 1012.1
JEDEC (JESD 51)
At 1/8 in.
2000
–
V
31.03
°C/W
°C/W
ØJA
77.42
V–0
1
UL–94
MSL
Moisture Sensitivity Level
Operating Conditions
Parameter
Description
Min.
Max.
Unit
VDD_REF, VDD_PCI,VDD_AGP,
3.3V Supply Voltages
3.135
3.465
V
VDD_CPU, VDD_48MHz
VDD_CPPU_CS
CPU_CS Supply Voltage
Input Pin Capacitance
XTAL Pin Capacitance
2.375
2.625
5
V
Cin
pF
pF
pF
CXTAL
CL
–
–
22.5
Max. Capacitive Load on
24_48MHz, 48 MHz, REF
PCI, AGP
20
30
f(REF)
Reference Frequency, Oscillator Nominal Value
14.318
14.318
MHz
Note:
2. Multiple Sequence: The voltage on any input or I/O pin cannot exceed the power pin during power-up. Power supply sequencing is NOT required.
Rev 1.0,November 21, 2006
Page 14 of 18
SPECTRALINEAR [ SPECTRALINEAR INC ]
