mk1491-14 Integrated Device Technology, mk1491-14 Datasheet - Page 3

• Manufacturer Part Number: mk1491-14
• Description: Opti Acpi Firestar Clock Source
• Manufacturer: Integrated Device Technology

MDS 1491-14 B
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA •95126 • [phone]tel • www.icst.com
Electrical Specifications
Note 1.
Parameter
ABSOLUTE MAXIMUM RATINGS (note 1)
ABSOLUTE MAXIMUM RATINGS (note 1)
Supply voltage, VDD
Inputs and Clock Outputs
Ambient Operating Temperature
Soldering Temperature
Storage temperature
DC CHARACTERISTICS (VDD = 3.3V or 2.5V unless noted)
DC CHARACTERISTICS (VDD = 3.3V or 2.5V unless noted)
Operating Voltage
Operating Voltage
Input High Voltage, VIH
Input Low Voltage, VIL
Output High Voltage, VOH
Output Low Voltage, VOL
Output High Voltage, VOH
Operating Supply Current, IDD
Power Down mode Supply Current
Short Circuit Current
Short Circuit Current
Input Capacitance
AC CHARACTERISTICS (VDD = 3.3V or 2.5V unless noted)
AC CHARACTERISTICS (VDD = 3.3V or 2.5V unless noted)
Input Frequency
Output Clock Rise Time
HOST Output Clock Rise Time
Output Clock Fall Time
HOST Output Clock Fall Time
Output Clock Duty Cycle, all MHz clocks
HOST1-4 Output to Output Skew
Skew of HOST 5,7 with respect to HOST 1-4
PCI Output to Output Skew
Lead of EHOST6 outputs with respect to PCI
Lead of EHOST6 with respect to HOST1-5, 7
Cycle to Cycle Jitter, CPU Clocks
Absolute Clock Period Jitter, Other MHz Clocks,
except 14.318 MHz
EMI reduction, peaks of 5th - 19th odd harmonics
Power up time, STOP# going high to all clocks stable
Power on time, applied VDD to all clocks stable
Stresses beyond those listed under Absolute Maximum Ratings could cause permanent damage to the device. Prolonged exposure to levels
above the operating limits but below the Absolute Maximums may affect device reliability.
VDD HOST = 2.5V
VDD HOST1-4, HOST5-7
VDD HOST = 2.5V
Conditions
Referenced to GND
Referenced to GND
Max of 10 seconds
VDD
IOH=-8mA
IOL=8mA
IOH=-8mA
No Load, 66.6MHz
Each output
0.8 to 2.0V
VDD HOST = 2.5V
2.0 to 0.8V
At 1.5V
Rising edges at 1.5V
With proper HSKEW setting
Rising edges at 1.5V
Rising edges at 1.5V
Rising edges at 1.5V
66.6 MHz clocks, LE=1
OPTi ACPI Firestar Clock Source
3
Minimum
VDD-0.4
-500
-0.5
-65
2.4
45
0
2
14.31818
Typical
49 to 51
2.5/3.3
±50
±25
3.3
1.9
3.9
48
12
3
7
6
8
MK1491-14
Maximum
VDD+0.5
VDD
1000
260
150
250
750
500
500
3.6
0.8
0.4
1.5
2.5
1.5
2.5
70
55
11
20
25
Revision 061801
7
Units
MHz
mA
mA
mA
°C
°C
°C
pF
dB
ms
ms
%
V
V
V
V
V
V
V
V
V
ns
ns
ns
ns
ps
ps
ps
ns
ns
ps
ps