MK74CG117AF

MK74CG117AF Datasheet

MK74CG117A

Part	Datasheet
MK74CG117AF	MK74CG117AF (pdf)

PDF Datasheet Preview
16 OUTPUT LOW SKEW CLOCK GENERATOR DATASHEET MK74CG117A The MK74CG117A is a monolithic CMOS high-speed, low-skew clock driver that includes an on-chip PLL. Ideal for communications and other systems that require a large number of high-speed clocks, the unique combination of PLL and 16 low-skew outputs can eliminate oscillators and low-skew buffers from systems. The device has a number of built-in multipliers, making it possible to run from one inexpensive, low-frequency crystal, and produce high-frequency clock outputs. Another selection allows the chip to run as a divider, dividing the input clock by two or 4 using the mode select . The device also has a buffered reference output, allowing multiple devices to be easily driven from one clock source. • 48-pin SSOP 300 mil package • On-chip PLL generates output clocks up to 90 MHz from a simple crystal or clock input • 16 low-skew outputs • Output skew less than 350 ps on rising edges • Ability to configure as 16 clocks at full-frequency 12 at full and 4 at half-frequency 8 at full and 8 at half-frequency • Tri-state mode for Output Enable function • V ±5% supply voltage Block Diagram S2:0 2 M1:0 Crystal or X1/ICLK clock input Crystal Ocsillator The crystal requires external capacitors for accurate tuning of the clock VDD 9 Clock Synthesis and Mode Select Circuitry 10 GND IDT / ICS 16 OUTPUT LOW SKEW CLOCK GENERATOR Clock 1 Clock 2 Clock 16 REF MK74CG117A 16 OUTPUT LOW SKEW CLOCK GENERATOR Pin Assignment VDD 1 X1/ICLK 2 X2 3 NC 4 NC 5 GND 6 GND 7 S2 8 REF 9 S1 10 GND 11 GND 12 CLK1 13 CLK2 14 VDD 15 VDD 16 CLK3 17 CLK4 18 GND 19 GND 20 NC 21 CLK5 22 CLK6 23 VDD 24 48 S0 47 CLK16 46 VDD 45 VDD 44 NC 43 CLK15 42 CLK14 41 GND 40 GND 39 M1 38 CLK13 37 CLK12 36 VDD 35 VDD 34 M0 33 CLK11 32 CLK10 31 CLK9 30 VDD 29 NC 28 GND 27 GND 26 CLK8 25 CLK7 48-pin 300 mil SSOP CLOCK SYNTHESIZER IDT / ICS 16 OUTPUT LOW SKEW CLOCK GENERATOR MK74CG117A 16 OUTPUT LOW SKEW CLOCK GENERATOR CLOCK SYNTHESIZER Pin Descriptions Pin Number Pin Name Pin Type Pin Description 1, 15, 16, 24, 30, 35, 36, 45, 46 Power Connect to VDD. Ordering Information Part / Order Number MK74CG117AF MK74CG117AFT Marking MK74CG117A Shipping Packaging Tubes Tape and Reel Package 48-pin SSOP 48-pin SSOP Temperature 0 to +70° C 0 to +70° C While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems, Inc. 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. IDT / ICS 16 OUTPUT LOW SKEW CLOCK GENERATOR MK74CG117A 16 OUTPUT LOW SKEW CLOCK GENERATOR CLOCK SYNTHESIZER Innovate with IDT and accelerate your future networks. Contact: For Sales 800-345-7015 408-284-8200 Fax 408-284-2775 For Tech Support <product line email> <product line phone> Corporate Headquarters Integrated Device Technology, Inc. 6024 Silver Creek Valley Road San Jose, CA 95138 United States 800 345 7015 +408 284 8200 outside U.S. Asia Pacific and Japan Integrated Device Technology Singapore 1997 Pte. Ltd. Reg. No. 199707558G 435 Orchard Road #20-03 Wisma Atria Singapore 238877 +65 6 887 5505 Europe IDT Europe, Limited Prime House Barnett Wood Lane Leatherhead, Surrey United Kingdom KT22 7DE +44 1372 363 339 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. Printed in USA

PDF Datasheet Preview

16 OUTPUT LOW SKEW CLOCK GENERATOR

DATASHEET

MK74CG117A

The MK74CG117A is a monolithic CMOS high-speed, low-skew clock driver that includes an on-chip PLL. Ideal for communications and other systems that require a large number of high-speed clocks, the unique combination of PLL and 16 low-skew outputs can eliminate oscillators and low-skew buffers from systems.

The device has a number of built-in multipliers, making it possible to run from one inexpensive, low-frequency crystal, and produce high-frequency clock outputs. Another selection allows the chip to run as a divider, dividing the input clock by two or 4 using the mode select .

The device also has a buffered reference output, allowing multiple devices to be easily driven from one clock source.
• 48-pin SSOP 300 mil package
• On-chip PLL generates output clocks up to 90 MHz from
a simple crystal or clock input
• 16 low-skew outputs
• Output skew less than 350 ps on rising edges
• Ability to configure as
16 clocks at full-frequency
12 at full and 4 at half-frequency
8 at full and 8 at half-frequency
• Tri-state mode for Output Enable function
• V ±5% supply voltage

Block Diagram

S2:0
2 M1:0

Crystal or X1/ICLK clock input

Crystal Ocsillator

The crystal requires external capacitors for accurate tuning of the clock

VDD 9

Clock Synthesis and Mode

Select Circuitry
10 GND

IDT / ICS 16 OUTPUT LOW SKEW CLOCK GENERATOR

Clock 1 Clock 2 Clock 16 REF

MK74CG117A 16 OUTPUT LOW SKEW CLOCK GENERATOR

Pin Assignment

VDD 1 X1/ICLK 2

X2 3 NC 4 NC 5 GND 6 GND 7 S2 8 REF 9 S1 10 GND 11 GND 12 CLK1 13 CLK2 14 VDD 15 VDD 16 CLK3 17 CLK4 18 GND 19 GND 20 NC 21 CLK5 22 CLK6 23 VDD 24
48 S0 47 CLK16 46 VDD 45 VDD 44 NC 43 CLK15 42 CLK14 41 GND 40 GND 39 M1 38 CLK13 37 CLK12 36 VDD 35 VDD 34 M0 33 CLK11 32 CLK10 31 CLK9 30 VDD 29 NC 28 GND 27 GND 26 CLK8 25 CLK7
48-pin 300 mil SSOP

CLOCK SYNTHESIZER

IDT / ICS 16 OUTPUT LOW SKEW CLOCK GENERATOR

MK74CG117A 16 OUTPUT LOW SKEW CLOCK GENERATOR

CLOCK SYNTHESIZER

Pin Descriptions

Pin Number

Pin Name Pin Type

Pin Description
1, 15, 16, 24, 30, 35, 36, 45, 46

Power Connect to VDD.
Ordering Information

Part / Order Number

MK74CG117AF MK74CG117AFT

Marking

MK74CG117A

Shipping Packaging

Tubes Tape and Reel

Package
48-pin SSOP 48-pin SSOP

Temperature
0 to +70° C 0 to +70° C

While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems, Inc. 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.

IDT / ICS 16 OUTPUT LOW SKEW CLOCK GENERATOR

MK74CG117A 16 OUTPUT LOW SKEW CLOCK GENERATOR

CLOCK SYNTHESIZER

Innovate with IDT and accelerate your future networks. Contact:

For Sales
800-345-7015 408-284-8200 Fax 408-284-2775

For Tech Support
<product line email> <product line phone>

Corporate Headquarters

Integrated Device Technology, Inc. 6024 Silver Creek Valley Road San Jose, CA 95138 United States 800 345 7015 +408 284 8200 outside U.S.

Asia Pacific and Japan

Integrated Device Technology Singapore 1997 Pte. Ltd. Reg. No. 199707558G 435 Orchard Road #20-03 Wisma Atria Singapore 238877 +65 6 887 5505

Europe

IDT Europe, Limited Prime House Barnett Wood Lane Leatherhead, Surrey United Kingdom KT22 7DE +44 1372 363 339
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. Printed in USA

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Datasheet ID: MK74CG117AF 637489