CY28301
DC Operating Requirements (continued)
Parameter
Description
Input Pin Capacitance
Xtal Pin Capacitance
Output Pin Capacitance
Pin Inductance
Condition
Min.
Max.
5
Unit
pF
Cin
Cxtal
Cout
Lpin
Ta
13.5
22.5
6
pF
pF
0
0
7
nH
°C
Ambient Temperature
No airflow
70
AC Electrical Characteristics[2] (TA = 0°C to +70°C, VDDQ3 = 3.3V 5%, VDDQ2= 2.5V 5% fXTL = 14.31818 MHz)
66.6-MHz Host 100-MHz Host 133-MHz Host
Parameter
Description
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Notes
CPUCLK
TPeriod
Host/CPUCLK Period
15.0
5.2
5.0
0.4
0.4
15.5
N/A
N/A
1.6
10.0
3.0
2.8
0.4
0.4
10.5
N/A
N/A
1.6
7.5
1.87
1.67
0.4
8.0
N/A
N/A
1.6
1.6
ns
ns
ns
ns
ns
4
THIGH
TLOW
TRISE
TFALL
Host/CPUCLK High Time
Host/CPUCLK Low Time
Host/CPUCLK Rise Time
Host/CPUCLK Fall Time
5
6
1.6
1.6
0.4
SDRAM
TPeriod
SDRAM CLK Period
10.0
3.0
2.8
0.4
0.4
10.5
N/A
N/A
1.6
10.0
3.0
2.8
0.4
0.4
10.5
N/A
N/A
1.6
10.0
3.0
2.8
0.4
0.4
10.5
N/A
N/A
1.6
ns
ns
ns
ns
ns
4
5
6
THIGH
TLOW
TRISE
TFALL
SDRAM CLK High Time
SDRAM CLK Low Time
SDRAM CLK Rise Time
SDRAM CLK Fall Time
1.6
1.6
1.6
APIC
TPeriod
APIC CLK Period
60.0
25.5
25.3
0.4
64.0
N/A
N/A
1.6
60.0
25.5
25.30
0.4
N/A
N/A
N/A
1.6
60.0
25.5
25.30
0.4
64.0
N/A
N/A
1.6
ns
ns
ns
ns
ns
4
5
6
THIGH
TLOW
TRISE
TFALL
APIC CLK High Time
APIC CLK Low Time
APIC CLK Rise Time
APIC CLK Fall Time
0.4
1.6
0.4
1.6
0.4
1.6
3V66
TPeriod
3V66 CLK Period
15.0
5.25
5.05
0.5
16.0
N/A
N/A
2.0
15.0
5.25
5.05
0.5
16.0
N/A
N/A
2.0
15.0
5.25
5.05
0.5
16.0
N/A
N/A
2.0
ns
ns
ns
ns
ns
4, 8
5
THIGH
TLOW
TRISE
3V66 CLK High Time
3V66 CLK Low Time
3V66 CLK Rise Time
3V66 CLK Fall Time
6
TFALL
0.5
2.0
0.5
2.0
0.5
2.0
Notes:
4. Period, jitter, offset, and skew measured on the rising edge at 1.25 for 2.5V clocks and at 1.5V for 3.3V clocks.
5. The time specified is measured from when V achieves its nominal operating level (typical condition V = 3.3V) until the frequency output is stable and
DDQ3
operating within specifications.
DDQ3
6. T
7. T
8. T
and T
are measured as transitions through the threshold region V = 0.4V and V = 2.0V (1 mA) JEDEC specification.
RISE
HIGH
LOW
FALL ol oh
is measured at 2.0V for 2.5V outputs, and 2.4V for 3.3V outputs.
is measured at 0.4V for all outputs.
Rev 1.0,November 27, 2006
Page 11 of 13
SPECTRALINEAR [ SPECTRALINEAR INC ]
