mk1493-03b Integrated Device Technology, mk1493-03b Datasheet - Page 3

• Manufacturer Part Number: mk1493-03b
• Description: Pci Clock Generator
• Manufacturer: Integrated Device Technology

IDT™ PCI CLOCK GENERATOR
MK1493-03B
PCI CLOCK GENERATOR
Number
Pin
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
PCICLK2/FS10
PCICLK1/FS9
CLK66M/FS8
CLK66/71/83
PCICLK3
PCICLK0
PCICLK4
PCICLK5
PCICLK6
PCICLK7
CPUCLK
CPUCLK
CLK50M
REF25
FS7_B
FS6_B
FS5_B
FS4_B
FS3_B
FS2_B
FS1_B
FS0_B
FS7_A
FS6_A
FS5_A
FS4_A
Name
GND
GND
GND
GND
GND
VDD
VDD
VDD
VDD
VDD
Pin
Output Buffered reference output of 25 MHz, (See table2, FS11=0 turns this clock off).
Output 100/125 MHz CPU clock.
Output 100/125 MHz CPU clock.
Output 50 MHz clock output.
Output PCI CLK3 (Programmable PCI Clock 3).
Output PCI CLK0 (Programmable PCI Clock 0).
Output Clock66/71/83. Default Value is 83.33 MHz.
Output PCI CLK4 (Programmable PCI Clock 4).
Output PCI CLK5 (Programmable PCI Clock 5).
Output PCI CLK6 (Programmable PCI Clock 6).
Output PCI CLK7.
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Type
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Pin
I/O
I/O
I/O
Connect to +3.3 V.
Connect to ground.
Connect to ground.
Connect to +3.3 V.
1 of 4 freq select input pin for PCI CLK7 per table 1
Freq select input pin for PCI CLK6 per table 1
Freq select input pin for PCI CLK5 per table 1
Freq select input pin for PCI CLK4 per table 1
PCI CLK1 (For CLK66/71/83 selection on pin 33, using FS9) (See table 2).
PCI CLK2 (For CLK66/71/83 selection on pin 33, using FS10) (See table 2).
Connect to ground.
Connect to +3.3 V.
Freq select input pin for PCI CLK3 per table 1
66.66 MHz clock, FS8=1 CPUCLK=100 MHz, FS8=0 CPUCLK=125 MHz) (table 2).
Connect to ground.
Connect to +3.3 V.
Freq select input pin for PCI CLK2 per table 1
Connect to +3.3 V.
Connect to ground.
Freq select input pin for PCI CLK1 per table 1
Freq select input pin for PCI CLK0 per table 1
Freq select input pin for PCI CLK7 per table 1
Freq select input pin for PCI CLK6 per table 1
Freq select input pin for PCI CLK5 per table 1
Freq select input pin for PCI CLK4 per table 1
3
Pin Description
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Internal pull-up resistor 120 K
Internal pull-up resistor 120 K
Internal pull-up resistor 120 K
Internal pull-up resistor 120 K
Internal pull-up resistor 120 K
Internal Pull up resistor 120 K
Internal Pull up resistor 120 K
Internal Pull up resistor 120 K
Internal Pull up resistor 120 K
Internal Pull up resistor 120 K
Internal Pull up resistor 120 K
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Internal pull-up resistor 120 K
MK1493-03B
CLOCK SYNTHESIZER
Ω.
Ω.
Ω.
Ω.
Ω.
Ω.
Ω.
Ω.
Ω.
Ω.
Ω.
REV H 051310
Ω.