DATASHEET
PCI CLOCK GENERATOR MK1493-01
IDT™ / ICS™
PCI CLOCK GENERATOR 1
MK1493-01 REV B 021204
Description
The MK1493-01 is a general purpose clock generator part
that provides an integrated clocking solution for
PCI/networking applications. It provides 8 individually
programmable PCI clocks, 2 CPU clocks, additional fixed
PCI clocks and a 25 MHz reference clock for LAN support.
This part incorporates ICS’s newest clock technology,
offering more robust features and functionality. Using a
serially programmable SMBus interface, the MK1493-01
can select the output clock frequency, and
enabling/disabling each individual output clock.
Features
•8 PCI clocks at 25, 33, 50, 66.66 MHz individually pin
selectable and serial port selectable
•2 CPU clocks at 100 MHz
•2 PCI clocks at 66.66 MHz
•1 PCI clock @ 50 MHz
•25 MHz reference clock
•SMBus Programming
•Power-up default frequency can be selected through FS
inputs
•25 MHz crystal or clock input required
•PCICLK cycle to cycle jitter <250ps
•CPUCLK cycle to cycle jitter <100ps
•Packaged in 48-pin (240mil) TSSOP Package
•Operating Voltage 3.3V + - 5%
Block Diagram
PCICLK(0:7)
Each PCI Output
Clock Individually
Programmable
Clock Buffer/
Crystal
Ocsillator
PLL
Divider
Buffer Circuits
SMBus Programmable
CPUCLK(100MHz)
X1/CLK
X2
SCLK
66M CLK
FS(0:7)_A
FS(0:7)_B
50M CLK
REFCLK
2
SDATA
2
8
8
25 MHz
GND
VDD
7
7
8
MK1493-01
PCI CLOCK GENERATOR CLOCK SYNTHESIZER
IDT™ / ICS™
PCI CLOCK GENERATOR 2
MK1493-01 REV B 021204
Pin Assignment
Pin Descriptions
21CLK50
22
FS6_B
23
FS5_B
24
FS4_B
1FS3_A
2
FS2_A
3
FS1_A
4
FS0_A
5
GND
6
VDD
7
SCL
8
SDA
9
GND
10
X1
11
X2
12
VDD
13
REF25
14
VDD
15
GND
16
GND
17
VDD
18
CPUCLK0
19
CPUCLK1
20
FS7_B
28
27
26
25
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
PCICLK2
PCICLK1
PCICLK0
PCICLK3
FS4_A
FS5_A
FS6_A
FS7_A
FS0_B
FS1_B
PCICLK7
GND
VDD
PCICLK6
PCICLK5
PCICLK4
FS2_B
VDD
GND
CLK66A1
FS3_B
VDD
GND
CLK66A0
Pin
Number
Pin
Name
Pin
Type
Pin Description
1 FS3_A Input Frequency select input pin for PCI CLK3 per per table 1. Pull up resistor.
2 FS2_A Input Frequency select input pin for PCI CLK2 per per table 1. Pull up resistor.
3 FS1_A Input Frequency select input pin for PCI CLK1 per per table 1. Pull up resistor.
4 FS0_A Input Frequency select input pin for PCI CLK0 per per table 1. Pull up resistor.
5 GND Power Connect to ground.
6 VDD Power Connect to +3.3 V.
7 SCL Input Clock pin for SMBus circuitry, 5 V tolerant.
8 SDA Input Data pin for SMBus circuitry, 5 V tolerant.
9 GND Power Connect to ground.
10 X1/ICLK Input Crystal connection/input clock. Connect to a 25 MHz fundamental mode crystal.
11 X2 XO Crystal connection. Connect to a 25 MHz fundamental mode crystal or leave open.
12 VDD Power Connect to +3.3 V.
MK1493-01
PCI CLOCK GENERATOR CLOCK SYNTHESIZER
IDT™ / ICS™
PCI CLOCK GENERATOR 3
MK1493-01 REV B 021204
13 REF25 Output Buffered reference output of 25 MHz crystal input.
14 VDD Power Connect to +3.3 V.
15 GND Power Connect to ground.
16 GND Power Connect to ground.
17 VDD Power Connect to +3.3 V.
18 CPUCLK0 Output 100 MHz CPU clock.
19 CPUCLK1 Output 100 MHz CPU clock.
20 FS7_B Input 1 of 4 frequency select input pin for PCI CLK7 per per table 1. Pull-up resistor.
21 CLK50 Output 50 MHz clock output.
22 FS6_B Input Frequency select input pin for PCI CLK6 per per table 1. Pull-up resistor.
23 FS5_B Input Frequency select input pin for PCI CLK5 per per table 1. Pull-up resistor.
24 FS4_B Input Frequency select input pin for PCI CLK4 per per table 1. Pull-up resistor.
25 PCICLK3 Output PCI CLK3.
26 PCICLK0 Output PCI CLK0.
27 PCICLK1 Output PCI CLK1.
28 PCICLK2 Output PCI CLK2.
29 GND Power Connect to ground.
30 VDD Power Connect to +3.3 V.
31 FS3_B Input Frequency select input pin for PCI CLK3 per per table 1. Pull-up resistor.
32 CLK66A1 Output Additional PCI Clock (fixed frequency 66 MHz ).
33 CLK66A0 Output Additional PCI Clock (fixed frequency 66 MHz ).
34 GND Power Connect to ground.
35 VDD Power Connect to +3.3 V.
36 FS2_B Input Frequency select input pin for PCI CLK2 per per table 1. Pull-up resistor.
37 PCICLK4 Output PCI CLK4.
38 PCICLK5 Output PCI CLK5.
39 PCICLK6 Output PCI CLK6.
40 VDD Power Connect to +3.3 V.
41 GND Power Connect to ground.
42 PCICLK7 Output PCI CLK7.
43 FS1_B Input Frequency select input pin for PCI CLK1 per per table 1. Pull-up resistor.
44 FS0_B Input Frequency select input pin for PCI CLK0 per per table 1. Pull-up resistor.
45 FS7_A Input Frequency select input pin for PCI CLK7 per per table 1. Pull-up resistor.
46 FS6_A Input Frequency select input pin for PCI CLK6 per per table 1. Pull-up resistor.
47 FS5_A Input Frequency select input pin for PCI CLK5 per per table 1. Pull-up resistor.
48 FS4_A Input Frequency select input pin for PCI CLK4 per per table 1. Pull-up resistor.
Pin
Number
Pin
Name
Pin
Type
Pin Description
MK1493-01
PCI CLOCK GENERATOR CLOCK SYNTHESIZER
IDT™ / ICS™
PCI CLOCK GENERATOR 4
MK1493-01 REV B 021204
Table 1. Frequency Select
Power Groups
General I2C Serial Interface Information
How to Write:
•Controller (host) sends a start bit
•Controller (host) sends the write address D2 (H)
•ICS clock will acknowledge
•Controller (host) sends the beginning byte location = N
•ICS clock will acknowldege
•Controller (host) starts sending Byte N through Byte
N+X-1(note 2)
•ICS clock will acknowledge each byte one at a time
•Controller (host) sends a Stop bit
FS(0:7)_B FS(0:7)_A PCICLK(0:7)
0025 MHz
0133.33 MHz
1050 MHz
1166.66 MHz
Pin Number Description
VDD GND
12 9 Ref, Crystal Osc Power
supply
30, 40 29, 41 PCICLK
35 34 PCI 66 clocks
65 SCLK
17 16 CPU Clocks(100MHz)
14 15 PLL
Index Block Write Operation
Controller (Host) ICS (Slave/Receiver)
TstarT bit
Slave Address D2 (H)
WR WRite
ACK
Beginning Byte = N
ACK
Data Byte Count = X
ACK
Beginning Byte N
X Byte
ACK
O
OO
OO
O
Byte N + X - 1
ACK
PstoP bit
MK1493-01
PCI CLOCK GENERATOR CLOCK SYNTHESIZER
IDT™ / ICS™
PCI CLOCK GENERATOR 5
MK1493-01 REV B 021204
How to Read:
•Controller (host) will send a start bit
•Controller (host) sends the write address D2 (H)
•ICS clock will acknowledge
•Controller (host) sends the beginning byte
location = N
•ICS clock will acknowldege
•Controller (host) will send a separate start bit
•Controller (host) sends the read address D3 (H)
•ICS clock will acknowldege
•ICS clock will send the data byte count = X
•ICS clock sends Byte N+X-1
•ICS clock sends Byte 0 through Byte X (if X(H) was
written to Byte 8)
•Controller (host) will need to acknowledge each byte
•Controller (host) will send a not acknowledge bit
•Controller (host) will send a stop bit
SMBus Table 2: Read-Back Register
Index Block Read Operation
Controller (Host) ICS (Slave/Receiver)
TstarT bit
Slave Address D2 (H)
WR WRite
ACK
Beginning Byte = N
ACK
RT Repeat starT
Slave Address D3 (H)
RD ReaD
ACK
Data Byte Count=X
ACK
X Byte
Beginning Byte N
ACK
O
OO
OO
O
Byte N + X - 1
NNot
PstoP bit
Byte 0 Pin # Name Control
Function
Type 0 1 PWD
Bit 7 - RESERVED 0
Bit 6 - FS vs. SMBus
prog
HW/SW select RW HW SW 0
Bit 5 - RESERVED 0
Bit 4 - RESERVED 0
Bit 3 - RESERVED 0
Bit 2 -
Frequency
Selection
See Frequency table 3
0
Bit 1 - 0
Bit 0 - 0
MK1493-01
PCI CLOCK GENERATOR CLOCK SYNTHESIZER
IDT™ / ICS™
PCI CLOCK GENERATOR 6
MK1493-01 REV B 021204
SMBus Table 2: Output Control Register
SMBus Table 2: Output Control Register
SMBus Table 2: Frequency Control Register
Byte 1 Pin # Name Control
Function
Type 0 1 PWD
Bit 7 40 PCICLK7 Output Control RW Disable Enable 1
Bit 6 39 PCICLK6 Output Control RW Disable Enable 1
Bit 5 38 PCICLK5 Output Control RW Disable Enable 1
Bit 4 37 PCICLK4 Output Control RW Disable Enable 1
Bit 3 31 PCICLK3 Output Control RW Disable Enable 1
Bit 2 28 PCICLK2 Output Control RW Disable Enable 1
Bit 1 27 PCICLK1 Output Control RW Disable Enable 1
Bit 0 26 PCICLK0 Output Control RW Disable Enable 1
Byte 2 Pin # Name Control
Function
Type 0 1 PWD
Bit 7 - RESERVED 0
Bit 6 - RESERVED 0
Bit 5 32 CLK66A1 Output Control RW Disable Enable 0
Bit 4 33 CLK66A0 Output Control RW Disable Enable 1
Bit 3 12 REF25 Output Control RW Disable Enable 0
Bit 2 19 CPUCLK1 Output Control RW Disable Enable 1
Bit 1 18 CPUCLK0 Output Control RW Disable Enable 1
Bit 0 20 CLK50 Output Control RW Disable Enable 1
Byte 3 Pin # Control Function Type 0 1 PWD
Bit 7 4 FS0_A RW
See Frequency Table 1
X
Bit 6 44 FS0_B RW X
Bit 5 3 FS1_A RW X
Bit 4 43 FS1_B RW X
Bit 3 2 FS2_A RW X
Bit 2 36 FS2_B RW X
Bit 1 1 FS3_A RW X
Bit 0 31 FS3_B RW X
MK1493-01
PCI CLOCK GENERATOR CLOCK SYNTHESIZER
IDT™ / ICS™
PCI CLOCK GENERATOR 7
MK1493-01 REV B 021204
SMBus Table 2: Frequency Control Register
SMBus Table 2: Reserved
SMBus Table 2: Reserved
Byte 4 Pin # Control Function Type 0 1 PWD
Bit 7 48 FS4_A RW
See Frequency Table 1
X
Bit 6 24 FS4_B RW X
Bit 5 47 FS5_A RW X
Bit 4 23 FS5_B RW X
Bit 3 46 FS6_A RW X
Bit 2 22 FS6_B RW X
Bit 1 45 FS7_A RW X
Bit 0 20 FS7_B RW X
Byte 5 Pin # Control Function Type 0 1 PWD
Bit 7 RESERVED - RESERVED 0
Bit 6 RESERVED - 0
Bit 5 RESERVED - 0
Bit 4 RESERVED - 0
Bit 3 RESERVED - 0
Bit 2 RESERVED - 0
Bit 1 RESERVED - 0
Bit 0 RESERVED - 0
Byte 6 Pin # Control Function Type 0 1 PWD
Bit 7 RESERVED - RESERVED 0
Bit 6 RESERVED - 0
Bit 5 RESERVED - 0
Bit 4 RESERVED - 0
Bit 3 RESERVED - 1
Bit 2 RESERVED - 0
Bit 1 RESERVED - 0
Bit 0 RESERVED - 0
MK1493-01
PCI CLOCK GENERATOR CLOCK SYNTHESIZER
IDT™ / ICS™
PCI CLOCK GENERATOR 8
MK1493-01 REV B 021204
MBus Table 2: Vendor and Revision ID Register
MBus Table 2: Byte Count Register
Tabel 3. Frequency Selection through SMBus (Byte 0)
Byte 7 Pin # Control Function Type 0 1 PWD
Bit 7 RID3 R REVISION ID 0
Bit 6 RID2 R 0
Bit 5 RID1 R 0
Bit 4 RID0 R 0
Bit 3 VID3 R VENDOR ID 0
Bit 2 VID2 R 0
Bit 1 VID1 R 0
Bit 0 VID0 R 1
Byte 8 Pin # Control Function Type 0 1 PWD
Bit 7 BC7 RW Writing to this Register
will confirm how many
bytes will be read
back, default
08=8 bytes
0
Bit 6 BC6 RW 0
Bit 5 BC5 RW 0
Bit 4 BC4 RW 0
Bit 3 BC3 RW 1
Bit 2 BC2 RW 0
Bit 1 BC1 RW 0
Bit 0 BC0 RW 0
Bit 2 Bit 1 Bit 0 CPUCLK1,0
(MHz)
CLK50 (MHz) CLK66A1,A0
(MHz)
PCICLK (MHz)
000 100.00 50.00 66.66 nominal
001 105.00 nominal + 5% nominal + 5% nominal + 5%
010 110.00 nominal + 10% nominal + 10% nominal + 10%
011 95.00 nominal - 5% nominal - 5% nominal - 5%
100 90.00 nominal - 10% nominal - 10% nominal - 10%
MK1493-01
PCI CLOCK GENERATOR CLOCK SYNTHESIZER
IDT™ / ICS™
PCI CLOCK GENERATOR 9
MK1493-01 REV B 021204
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the MK1493-01. These ratings, which are
standard values for ICS commercially rated parts, are stress ratings only. Functional operation of the device at
these or any other conditions above those indicated in the operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended periods can affect product reliability. Electrical
parameters are guaranteed only over the recommended operating temperature range.
Recommended Operation Conditions
DC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V+-5%, Ambient Temperature 0 to +70°C
Item Rating
Supply Voltage, VDD 5.5 V
All Inputs and Outputs -0.5 V to VDD+0.5 V
Ambient Operating Temperature 0 to +70°C
Storage Temperature -65 to +150°C
Junction Temperature 125°C
Soldering Temperature 260°C
Parameter Min. Typ. Max. Units
Ambient Operating Temperature 0 +70 °C
Power Supply Voltage (measured in respect to GND) +3.15 3.3 +3.45 V
Parameter Symbol Conditions Min. Typ. Max. Units
Input High Voltage VIH 2V
Input Low Voltage VIL 0.8 V
Input High Current IIH VIN=VDD -5 5 µA
Input Low Current IIL1 VIN=0V, SDA, SCL
inputs with no pull-up
resistors.
-5 µA
IIL2 VIN=0V, All other inputs
with pull-up resistors
-200 µA
Operating Supply
Current
IDD CL = Full load 350 mA
Input Frequency FIN Note 3 25 MHz
Pin Inductance LPIN Note 1 7 nH
MK1493-01
PCI CLOCK GENERATOR CLOCK SYNTHESIZER
IDT™ / ICS™
PCI CLOCK GENERATOR 10
MK1493-01 REV B 021204
Note 1: Guaranteed by design, not 100% tested in production.
Note 2: See timing diagrams for timing requirements.
Note 3: Input frequency should be measured at the REF output pin and tuned to ideal 25 MHz to meet ppm
frequency accuracy on PLL outputs.
Electrical Characteristics - CPUCLK
Unless stated otherwise, VDD = 3.3 V+-5%, CL=20 pf, Ambient Temperature 0 to +70° C
Note 1: Guaranteed by design, not 100% tested in production
Electrical Characteristics - CLK50, CLK66A0 & CLK66A1
Unless stated otherwise, VDD = 3.3 V+-5%, CL= 20 pf, Ambient Temperature 0 to +70° C
Input Capacitance
Note 1
CIN Logic inputs 5 pF
COUT Output pin capacitance 6 pF
CINX X1 and X2 pins 5 pF
CLK Stabilization TSTAB From VDD Power-up
Note 2
3ms
Parameter Symbol Conditions Min. Typ. Max. Units
Output Frequency FO1 100 MHz
Output Impedance RDSP VO = VDD*(0.5)
Note 1
12 55 Ω
Output High Voltage VOH IOH = -12 mA, Note 1 2.4 V
Output Low Voltage VOL IOL = 12 mA, Note 1 0.3 0.4 V
Output High Current IOH VOH@MIN = 2.0 V,
Note 1
-19 mA
Output Low Current IOL VOL@MAX = 0.8 V
Note 1
19 mA
Rise Time tr1 VOL = 0.4 V,
VOH = 2.4 V, Note 1
1.2 1.7 ns
Fall Time tf1 VOH = 2.4 V,
VOL = 0.8 V, Note 1
1.2 1.7 ns
Duty Cycle dt1 VT = 1.5 V 45 50 55 %
Output to Output Skew tsk1 VT = 1.5 V 175 ps
Cycle to Cycle Jitter VT = 1.5 V 50 100 ps
Parameter Symbol Conditions Min. Typ. Max. Units
Output Frequency FO1 50&66 MHz
Output Impedance RDSP VO = VDD*(0.5)
Note 1
12 55 Ω
Output High Voltage VOH IOH = -12 mA, Note 1 2.4 V
Parameter Symbol Conditions Min. Typ. Max. Units
MK1493-01
PCI CLOCK GENERATOR CLOCK SYNTHESIZER
IDT™ / ICS™
PCI CLOCK GENERATOR 11
MK1493-01 REV B 021204
Note 1: Guaranteed by design, not 100% tested in production
Electrical Characteristics - PCICLK
Unless stated otherwise, VDD = 3.3 V+-5%, CL=30 pf, Ambient Temperature 0 to +70° C
Note 1: Guaranteed by design, not 100% tested in production
Output Low Voltage VOL IOL = 12 mA, Note 1 0.3 0.4 V
Output High Current IOH VOH@MIN = 2.0 V,
Note 1
-19 mA
Output Low Current IOL VOH@MAX = 0.8 V
Note 1
19 mA
Rise Time tr1 VOL = 0.4V,
VOH = 2.4 V, Note 1
1.2 1.7 ns
Fall Time tf1 VOH = 2.4 V,
VOL = 0.4 V, Note 1
1.2 1.7 ns
Duty Cycle VT = 1.5 V 45 50 55 %
Output to Output Skew
(CLK66A0, A1)
VT = 1.5 V 175 ps
Cycle to Cycle Jitter VT = 1.5 V 250 ps
Parameter Symbol Conditions Min. Typ. Max. Units
Output Frequency FO1 FS0 25 MHz
Output Impedance RDSP VO = VDD*(0.5)
Note 1
12 55 Ω
Output High Voltage VOH IOH = -1 mA, Note 1 2.4 V
Output Low Voltage VOL IOL = 1 mA, Note 1 0.55 V
Output High Current IOH VOH@MIN = 2.0 V,
Note 1
-33 mA
Output Low Current IOL VOL@MAX = 0.8 V
Note 1
30 mA
Rise Time tr1 VOL = 0.4 V,
VOH = 2.4 V, Note 1
1.7 2.4 ns
Fall Time tf1 VOH = 2.4 V,
VOL = 0.4 V, Note 1
1.7 2.4 ns
Duty Cycle VT = 1.5 V 45 50 55 %
Output to Output Skew VT = 1.5 V 250 ps
Cycle to Cycle Jitter VT = 1.5 V 250 ps
Parameter Symbol Conditions Min. Typ. Max. Units
MK1493-01
PCI CLOCK GENERATOR CLOCK SYNTHESIZER
IDT™ / ICS™
PCI CLOCK GENERATOR 12
MK1493-01 REV B 021204
Electrical Characteristics - 25 MHz Reference
Unless stated otherwise, VDD = 3.3 V+-5%, CL=20 pf, VDD = 3.3 V, Ambient Temperature 0 to +70° C
Note 1: Guaranteed by design, not 100% tested in production
Parameter Symbol Conditions Min. Typ. Max. Units
Output Frequency FO1 25 MHz
Output Impedance RDSP VO = VDD*(0.5)
Note 1
20 60 Ω
Output High Voltage VOH IOH = -1 mA, Note 1 2.4 V
Output Low Voltage VOL IOL = 1 mA, Note 1 0.4 V
Output High Current IOH VOH@MIN = 1.0 V,
VOH@MAX = 3.135 V
Note 1
-29 mA
Output Low Current IOL VOL@MAX = 0.8 V
Note 1
29 mA
Rise Time tr1 VOL = 0.4 V,
VOH = 2.4 V, Note 1
1.2 1.7 ns
Fall Time tf1 VOH = 2.4 V,
VOL = 0.4 V, Note 1
1.2 1.7 ns
Duty Cycle VT = 1.5 V 45 50 55 %
Jitter Cycle to Cycle VT = 1.5 V 500 ps
MK1493-01
PCI CLOCK GENERATOR CLOCK SYNTHESIZER
IDT™ / ICS™
PCI CLOCK GENERATOR 13
MK1493-01 REV B 021204
Package Outline and Package Dimensions (48-pin TSSOP, 240 Mil. Body)
Package dimensions are kept current with JEDEC Publication No. 95
Ordering Information
While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems (ICS) assumes no
responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use. No
other circuits, patents, or licenses are implied. This product is intended for use in normal commercial applications. Any other applications
such as those requiring extended temperature range, high reliability, or other extraordinary environmental requirements are not
recommended without additional processing by ICS. ICS reserves the right to change any circuitry or specifications without notice. ICS
does not authorize or warrant any ICS product for use in life support devices or critical medical instruments.
Part / Order Number Marking Shipping
packaging
Package Temperature
MK1493-01G MK1493-01G Tubes 48-pin TSSOP 0 to +70° C
MK1493-01GTR MK1493-01G Tape and Reel 48-pin TSSOP 0 to +70° C
MIN MAX MIN MAX
A -- 1.20 -- .047
A1 0.05 0.15 .002 .006
A2 0.80 1.05 .032 .041
b 0.13 0.23 .005 .009
c 0.09 0.20 .0035 .008
D 12.40 12.60 0.488 0.496
E
E1 6.00 6.20 .236 .244
e
8.10 BASIC 0.319 BASIC
6.10 mm. Body, 0.40 mm. Pitch TSSOP
(240 mil) (16 mil)
SYMBOL
In Millimeters In Inches
C
OMMON DIMENSION
S
C
OMMON DIMENSION
S
0.5 BASIC 0.02 BASIC
INDEX
AREA
INDEX
AREA
12
1 2
N
D
E1 E
α
SEATING
PLANE
SEATING
PLANE
A1
A
A2
e
-C-
- C -
b
c
L
aaa
C
© 2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device
Technology, Inc. Accelerated Thinking is a service mark of Integrated Device Technology, Inc. All other brands, product names and marks are or may be trademarks or registered
trademarks used to identify products or services of their respective owners.
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Corporate Headquarters
Integrated Device Technology, Inc.
6024 Silver Creek Valley Road
San Jose, CA 95138
United States
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+408 284 8200 (outside U.S.)
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Integrated Device Technology
Singapore (1997) Pte. Ltd.
Reg. No. 199707558G
435 Orchard Road
#20-03 Wisma Atria
Singapore 238877
+65 6 887 5505
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Prime House
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United Kingdom KT22 7DE
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For Sales
800-345-7015
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Fax: 408-284-2775
For Tech Support
<product line email>
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MK1493-01
PCI CLOCK GENERATOR CLOCK SYNTHESIZER
