PCK2010RA

General description

The PCK2010RA is a clock generator (frequency synthesizer) chip for a Pentium II and other similar processors.

The PCK2010RA has four CPU clock outputs at 2.5 V, two CPUDIV2 clock outputs running at ½ CPU clock frequency (66 MHz or 50 MHz depending on the state of SEL133/100) and four 3V66 clocks running at 66MHz. There are eight PCI clock outputs running at 33 MHz. One of the PCI clock outputs is free-running. Additionally, the part has three 2.5 V IOAPIC clock outputs at 16.67 MHz and two 3.3 V reference clock outputs at 14.318 MHz. All clock outputs meet Intel?s drive strength, rise/fall time, jitter, accuracy, and skew requirements.

The part possesses dedicated power-down, CPUSTOP, and PCISTOP input pins for power management control. These inputs are synchronized on-chip and ensure glitch-free output transitions. When the CPUSTOP input is asserted, the CPU clock outputs and 3V66 clock outputs are driven LOW. When the PCISTOP input is asserted, the PCI clock outputs are driven LOW.

Finally, when the PWRDWN input pin is asserted, the internal reference oscillator and PLLs are shut down, and all outputs are driven LOW.

Features

• Mixed 2.5 V and 3.3 V operation
• Four CPU clocks at 2.5 V
• Eight PCI clocks at 3.3 V, one free-running (synchronous with CPU clocks)
• Four 3.3 V fixed clocks @ 66 MHz
• Two 2.5 V CPUDIV2 clocks @ ² CPU clock frequency
• Three 2.5 V IOAPIC clocks @ 16.67 MHz
• One 3.3 V 48 MHz USB clock
• Two 3.3 V reference clocks @ 14.318 MHz
• Reference 14.31818 MHz Xtal oscillator input
• 133 MHz or 100 MHz operation, 133.01 MHz in 133 mode
• Power management control input pins
• CPU clock jitter max. 250 ps cycle-cycle
• CPU clock skew max. 175 ps pin-pin
• 0.0 ns - 1.5 ns CPU-3V66 delay
• 1.5 ns - 3.5 ns 3V66-PCI delay
• 1.5 ns - 4.0 ns CPU-IOAPIC delay
• 1.5 ns - 4.0 ns CPU-PCI delay
• Available in 56-pin SSOP package
• +- 0.6 pct. center spread spectrum capability via select pins
• -0.6 pct. down spread spectrum capability via select pins

Products/packages

Type number	North American Type number	Ordering code (12NC)	Product status	Package	Packing	Marking	Chemical content	Leadfree conversion date
PCK2010RADL		9352 686 64518	Samples available	SOT371-1 (SSOP56)	Reel Dry Pack, SMD, 13"	Standard Marking	PCK2010RADL	week 11, 2005
PCK2010RADL		9352 686 64512	Samples available	SOT371-1 (SSOP56)	Tube Dry Pack	Standard Marking	PCK2010RADL	week 11, 2005

Pricing/ordering/availability

Type number	Ordering code(12NC)	Indicative price/unit($)	Region	Distributor	In stock	Order quantity	Inventory date	Buy online	Samples
PCK2010RADL	9352 686 64518								not available
PCK2010RADL	9352 686 64512								not available

Block diagrams/pinning

Design support

Support Documents

Parametrics/similar products

Type number	Package	Supply voltage(V)	Application	Other features	Operating temp.(Cel)	Outputs	Rise/fall time(ps)	Output frequency range(MHz)	Jitter (pk-pk)(ps)	Output skew(ps)	Programmability
PCK2010RADL	SOT371-1 (SSOP56)	2.5?3.3	CPU clock synthesis & driver for 100/133MHz Pentium II applications (CK98)	spread spectrum?synchronous individual output power-down	0~+70	24 x LVTTL	1600	14.318?16.67?33?48?50?66?100?133	250	175	Pin select

Similar products
PCK2010RA links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

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