CY28347 Universal Single-chip Clock Solution Datasheet

CY28347 Universal Single-chip Clock Solution

Pin 3 4 1 XIN XOUT FS0/REF0 VDD VDD [2] Name PWR I/O I O Description Oscillator Buffer Input. Connect to a crystal or to an external clock. Oscillator Buffer Output. Connect to a crystal. Do not connect when an external clock is applied at XIN. I/O Power-on Bidirectional Input/Output. At power-up, FS0 is the input. When the PU power supply voltage cross.

Features

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• Supports VIA P4M266/KM266 chipsets Supports Pentium® 4, Athlon processors Supports two DDR DIMMS Provides — Two different programmable CPU clock pairs — Six differential DDR SDRAM pairs — Two low-skew/low-jitter AGP clocks — Six low-skew/low-jitter PCI clocks — One 48M output for USB — One programmable 24M or 48M for SIO
• Dial-a-Frequency and Dial-a-dB features
• Spread Spectrum for best electromagnetic interference (EMI) reduction
• SMBus-compatible for programmability
• 56-pin SSOP and TSSOP packages Table 1. Frequency Selection Table FS(3:0) 0000 0001 0010 0011 0100 0101 0110 01.

No.	Partie #	Fabricant	Description
1	CY28341	Cypress Semiconductor	Universal Single-Chip Clock Solution
2	CY28341	SpectraLinear	Universal Single-Chip Clock Solution
3	CY28342	Cypress Semiconductor	High-performance SiS645/650 Pentium 4 Clock Synthesizer
4	CY28343	Cypress Semiconductor	Zero Delay SDR/DDR Clock Buffer
5	CY28344	Cypress Semiconductor	FTG
6	CY28346	Cypress Semiconductor	Clock Synthesizer with Differential CPU Outputs
7	CY28346-2	Silicon Laboratories	Clock Synthesizer
8	CY28349	SpectraLinear	FTG
9	CY28349B	Cypress Semiconductor	FTG
10	CY28301	Cypress Semiconductor	Frequency Generator for Intel Integrated Chipset
11	CY28322-2	Cypress	133 Mhz Spread Spectrum Clock Synthesizer with Differential CPU Outputs
12	CY28323	Cypress Semiconductor	FTG

CY28347 - Cypress Semiconductor

CY28347 Universal Single-chip Clock Solution

Features

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