Datasheet4U Logo Datasheet4U.com

W161 - 133-MHz Spread Spectrum FTG

Description

CPU Clock Outputs 0 through 2: CPU clock outputs.

Their output voltage swing is controlled by voltage applied to VDDQ2.

PCI Clock Outputs 0 through 9: Output voltage swing is controlled by voltage applied to VDDQ3.

Features

  • Maximized EMI Suppression using Cypress’s Spread Spectrum Technology.
  • Three copies of CPU outputs at 100 or 133 MHz.
  • Three copies of 66-MHz output at 3.3V.
  • Ten copies of PCI clocks at 33 MHz, 3.3V.
  • Two copies of 14.318-MHz reference output at 3.3V.
  • One copy of 48-MHz USB clock.
  • One copy of CPU-divide-by-2 output as reference input to Direct Rambus™ Clock Generator (Cypress W134).
  • Available in 48-pin SSOP (300 mils) Spread S.

📥 Download Datasheet

Datasheet preview – W161

Datasheet Details

Part number W161
Manufacturer Cypress
File Size 117.41 KB
Description 133-MHz Spread Spectrum FTG
Datasheet download datasheet W161 Datasheet
Additional preview pages of the W161 datasheet.

📁 Similar Datasheet

  • W160A - 160 Lead Cerquad (National Semiconductor)
  • W168 - Dual P-Channel 30V MOSFET (VBsemi)
  • W16NA40 - STW16NA40 (ST Microelectronics)
  • W16NB60 - STW16NB60 (STMicroelectronics)
Other Datasheets by Cypress Semiconductor
  • W162 - Spread Aware/ Zero Delay Buffer
  • W163 - Spread Aware/ Zero Delay Buffer
  • W164 - Spread Spectrum Desktop/Notebook System Frequency Generator
  • W166 - Spread Spectrum Frequency Timing Generator
  • W167B - 133-MHz Spread Spectrum FTG

Full PDF Text Transcription

Click to expand full text
PRELIMINARY W161 133-MHz Spread Spectrum FTG for Pentium® II Platforms Features • Maximized EMI Suppression using Cypress’s Spread Spectrum Technology • Three copies of CPU outputs at 100 or 133 MHz • Three copies of 66-MHz output at 3.3V • Ten copies of PCI clocks at 33 MHz, 3.3V • Two copies of 14.318-MHz reference output at 3.3V • One copy of 48-MHz USB clock • One copy of CPU-divide-by-2 output as reference input to Direct Rambus™ Clock Generator (Cypress W134) • Available in 48-pin SSOP (300 mils) Spread Spectrum Modulation:..................................... –0.5% CPU to 3V66 Output Offset: ............. 0.0–1.5 ns (CPU leads) 3V66 to PCI Output Offset:.............. 1.5–3.0 ns (3V66 leads) CPU to IOAPIC Output Offset: ......... 1.5–4.0 ns (CPU leads) Table 1.
Published: |