The 501 Loco™ is the most cost effective way to generate a high-quality, high-frequency clock output from a lower frequency crystal or clock input. The name LOCO stands for Low Cost Oscillator, as it is designed to replace crystal oscillators in most electronic systems. Using Phase-Locked Loop (PLL) techniques, the device uses a standard fundamental mode, inexpensive crystal to produce output clocks up to 160 MHz. Stored in the chip's ROM is the ability to generate nine different multiplication factors, allowing one chip to output many common frequencies (see table on page 2). The device also has an output enable pin which tri-states the clock output when the OE pin is taken low. This product is intended for clock generation. It has low output jitter (variation in the output period), but input to output skew and jitter are not defined or guaranteed. For applications which require defined input to output skew, use the 570B.


  • Packaged as 8-pin SOIC, MSOP, or die
  • RoHS 5 (green) or RoHS 6 (green and lead free) compliant packaging
  • IDT's lowest cost PLL clock
  • Zero ppm multiplication error
  • Input crystal frequency of 5 - 27 MHz
  • Input clock frequency of 2 - 50 MHz
  • Output clock frequencies up to 160 MHz
  • Extremely low jitter of 25 ps (one sigma)
  • Compatible with all popular CPUs
  • Duty cycle of 45/55 up to 160 MHz
  • Nine selectable frequencies
  • Operating voltage of 3.3 V or 5.0 V
  • Tri-state output for board level testing
  • 25 mA drive capability at TTL levels
  • Ideal for oscillator replacement
  • Industrial temperature version available
  • Advanced, low-power CMOS process


下单器件 ID Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
Active SOIC 8 I 是的 Tube
Active SOIC 8 I 是的 Reel
Active SOIC 8 C 是的 Tube
Active SOIC 8 C 是的 Reel


文档标题 其他语言 类型 文档格式 文件大小 日期
501 Datasheet 数据手册 PDF 189 KB
应用指南 &白皮书
AN-828 Termination - LVPECL 应用文档 PDF 322 KB
AN-831 The Crystal Load curve 应用文档 PDF 395 KB
AN-845 Termination - LVCMOS 应用文档 PDF 146 KB
AN-844 Termination - AC Coupling Clock Receivers 应用文档 PDF 170 KB
AN-842 Thermal Considerations in Package Design and Selection 应用文档 PDF 495 KB
AN-803 Crystal Timing Budget and Accuracy for IDT Timing Clock Products 应用文档 PDF 128 KB
AN-840 Jitter Specifications for Timing Signals 应用文档 PDF 442 KB
AN-838 Peak-to-Peak Jitter Calculations 应用文档 PDF 115 KB
AN-839 RMS Phase Jitter 应用文档 PDF 233 KB
AN-837 Overdriving the Crystal Interface 应用文档 PDF 133 KB
AN-832 Timing Budget and Accuracy 应用文档 PDF 131 KB
AN-834 Hot-Swap Recommendations 应用文档 PDF 153 KB
AN-836 Differential Input to Accept Single-ended Levels 应用文档 PDF 120 KB
AN-835 Differential Input with VCMR being VIH Referenced 应用文档 PDF 160 KB
AN-830 Quartz Crystal Drive Level 应用文档 PDF 143 KB
AN-827 Application Relevance of Clock Jitter 应用文档 PDF 1.15 MB
AN-815 Understanding Jitter Units 应用文档 PDF 565 KB
AN-802 Crystal-Measuring Oscillator Negative Resistance 应用文档 PDF 136 KB
AN-801 Crystal-High Drive Level 应用文档 PDF 202 KB
AN-806 Power Supply Noise Rejection 应用文档 PDF 438 KB
AN-805 Recommended Ferrite Beads 应用文档 PDF 121 KB
ICS500 Family demo board instructions 应用文档 PDF 103 KB
PDN# : CQ-18-03 Product Discontinuance Notice 产品停产通告 PDF 218 KB
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly 产品变更通告 PDF 611 KB
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly 产品变更通告 PDF 611 KB
PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages 产品变更通告 PDF 95 KB
PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages 产品变更通告 PDF 50 KB
PDN# : CQ-14-08 Manufacturing Discontinunce PDN 产品停产通告 PDF 486 KB
PCN# : A1403-03 Gold wire to Copper wire 产品变更通告 PDF 42 KB
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products 产品变更通告 PDF 361 KB
PCN# : A1208-01R1 Gold to Copper Wire 产品变更通告 PDF 254 KB
PCN# A-0607-06 MMT Thailand as Alternate Assembly Facility for PLCC, SOIC 150mil/300mil 产品变更通告 PDF 223 KB
501 3.3V IBIS Model 模型 - IBIS ZIP 3 KB
501 5V IBIS Model 模型 - IBIS ZIP 3 KB
501A 3.3V IBIS Model 模型 - IBIS ZIP 3 KB
Timing Solutions Products Overview 概览 PDF 4.11 MB
IDT Products for Radio Applications 日本語 产品简述 PDF 2.34 MB
IDT Clock Generation Overview 日本語 概览 PDF 1.83 MB
IDT Clock Distribution Overview 日本語 概览 PDF 3.79 MB