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Maxim > Products > Supervisors, Voltage Monitors, Sequencers  Timekeeping, Timers, and Counters  Oscillators 
MAX7381
3-Pin Silicon Oscillator


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Data Sheet
FULL DATA SHEET (PDF, 548kB)
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Description
The MAX7381 is a silicon oscillator intended as a low-cost improvement to ceramic resonators, crystals, and crystal oscillator modules as the clock source for microcontrollers and UARTs in 3V, 3.3V, and 5V applications.

The MAX7381 is an integrated oscillator, supplied at specific frequencies, just like crystals and resonators, and with a rail-to-rail, 50%, duty-cycle square-wave output. The oscillator frequency is generated directly without the use of a phase-locked loop (PLL). No additional components are required for setting or adjusting the frequency.

Unlike typical crystal and ceramic resonator oscillator circuits, the MAX7381 is resistant to vibration and EMI. The high output-drive current and absence of high-impedance nodes make the oscillator invulnerable to dirty or humid operating conditions. With a wide operating temperature range as standard, the oscillator is a good choice for demanding appliance and automotive environments. The MAX7381 is available with frequencies in the 10MHz to 16MHz range.

The MAX7381 is offered in a space-saving 3-pin SC70 package. All ICs are guaranteed to operate over the -55°C to +135°C temperature range and specified from the -40°C to +125°C temperature range.

Key Features   Applications/Uses
  • 2.7V to 5.5V Operation
  • Factory-Trimmed Oscillator (10MHz to 16MHz)
  • No External Components Required
  • ±10mA Output-Drive Current
  • 2% Initial Accuracy
  • ±100ppm/°C Temperature Drift
  • Fast Startup Time: 5µs
  • 40% to 60% Maximum Duty Cycle
  • 5ns Output Rise/Fall Time
  • Very-Low-EMI Susceptibility (No High-Impedance Nodes)
  • No PLL
  • Low Jitter: 180psP-P at 16MHz
  • -40°C to +125°C Temperature Range

 
  		• Appliances and Controls
  		• Automotive
  		• Handheld Products
  		• Microcontroller Systems
  		• Portable Equipment
  		• White Goods

    Key Specifications:   Silicon Oscillators
    Part Number fOUT (max) (MHz) fOUT (min) (kHz) Δ fOUT (max) (%) User Programmable fOUT Spread Spectrum VCC (V) Reset Output Package Operating Temp. Range (°C)
    MAX7381  16 10000 3.5 No No 2.7 to 5.5 No SC-70/3
    SOT-23/3     		-40 to +125
    See All Silicon Oscillators (21)

    Diagram
    MAX7381: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  		• Application Note 3582: Replacing Crystals and Ceramic Resonators with Silicon Oscillators - MAX7381

    Evaluation Kits
    none

    Design Guides
  		• Microprocessor Supervisory (PDF)

    Reliability Reports
  		• Show FIT data for:
  		• Request Reliability Report for:

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-34 of 34

    MAX7381 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX7381AUR336  



    		-40°C to +125°C See data sheet
    MAX7381AUR326  



    		-40°C to +125°C See data sheet
    MAX7381AUR336-T  



    		-40°C to +125°C See data sheet
    MAX7381AUR326-T  



    		-40°C to +125°C See data sheet
    MAX7381AXR166+T  
    		SC-70;3 pin;
    Dwg: 21-0075 (PDF)
    Use pkgcode/variation: X3+2*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7381AXR106+  
    		SC-70;3 pin;
    Dwg: 21-0075 (PDF)
    Use pkgcode/variation: X3+2*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7381AXR106+T  
    		SC-70;3 pin;
    Dwg: 21-0075 (PDF)
    Use pkgcode/variation: X3+2*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7381AXR126+  
    		SC-70;3 pin;
    Dwg: 21-0075 (PDF)
    Use pkgcode/variation: X3+2*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7381AXR166+  
    		SC-70;3 pin;
    Dwg: 21-0075 (PDF)
    Use pkgcode/variation: X3+2*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7381AXR126+T  
    		SC-70;3 pin;
    Dwg: 21-0075 (PDF)
    Use pkgcode/variation: X3+2*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7381AXR106  
    		SC-70;3 pin;
    Dwg: 21-0075 (PDF)
    Use pkgcode/variation: X3-2*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7381AXR116  
    		SC-70;3 pin;
    Dwg: 21-0075 (PDF)
    Use pkgcode/variation: X3-2*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7381AXR126  
    		SC-70;3 pin;
    Dwg: 21-0075 (PDF)
    Use pkgcode/variation: X3-2*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7381AXR136  
    		SC-70;3 pin;
    Dwg: 21-0075 (PDF)
    Use pkgcode/variation: X3-2*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7381AXR326  
    		SC-70;3 pin;
    Dwg: 21-0075 (PDF)
    Use pkgcode/variation: X3-2*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7381AXR336  
    		SC-70;3 pin;
    Dwg: 21-0075 (PDF)
    Use pkgcode/variation: X3-2*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7381AXR336-T  
    		SC-70;3 pin;
    Dwg: 21-0075 (PDF)
    Use pkgcode/variation: X3-2*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7381AXR326-T  
    		SC-70;3 pin;
    Dwg: 21-0075 (PDF)
    Use pkgcode/variation: X3-2*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7381AXR126-T  
    		SC-70;3 pin;
    Dwg: 21-0075 (PDF)
    Use pkgcode/variation: X3-2*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7381AXR116-T  
    		SC-70;3 pin;
    Dwg: 21-0075 (PDF)
    Use pkgcode/variation: X3-2*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7381AXR106-T  
    		SC-70;3 pin;
    Dwg: 21-0075 (PDF)
    Use pkgcode/variation: X3-2*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7381AXR136-T  
    		SC-70;3 pin;
    Dwg: 21-0075 (PDF)
    Use pkgcode/variation: X3-2*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7381AUR166  
    		SOT-23;3 pin;
    Dwg: 21-0051 (PDF)
    Use pkgcode/variation: U3-1*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX7381AUR146  
    		SOT-23;3 pin;
    Dwg: 21-0051 (PDF)
    Use pkgcode/variation: U3-1*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX7381AUR136  
    		SOT-23;3 pin;
    Dwg: 21-0051 (PDF)
    Use pkgcode/variation: U3-1*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX7381AUR126  
    		SOT-23;3 pin;
    Dwg: 21-0051 (PDF)
    Use pkgcode/variation: U3-1*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX7381AUR116  
    		SOT-23;3 pin;
    Dwg: 21-0051 (PDF)
    Use pkgcode/variation: U3-1*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX7381AUR106  
    		SOT-23;3 pin;
    Dwg: 21-0051 (PDF)
    Use pkgcode/variation: U3-1*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX7381AUR116-T  
    		SOT-23;3 pin;
    Dwg: 21-0051 (PDF)
    Use pkgcode/variation: U3-1*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX7381AUR126-T  
    		SOT-23;3 pin;
    Dwg: 21-0051 (PDF)
    Use pkgcode/variation: U3-1*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX7381AUR136-T  
    		SOT-23;3 pin;
    Dwg: 21-0051 (PDF)
    Use pkgcode/variation: U3-1*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX7381AUR146-T  
    		SOT-23;3 pin;
    Dwg: 21-0051 (PDF)
    Use pkgcode/variation: U3-1*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX7381AUR166-T  
    		SOT-23;3 pin;
    Dwg: 21-0051 (PDF)
    Use pkgcode/variation: U3-1*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX7381AUR106-T  
    		SOT-23;3 pin;
    Dwg: 21-0051 (PDF)
    Use pkgcode/variation: U3-1*
    		-40°C to +125°C See data sheet
    Materials Analysis

    More Information
  		• Topmark Coding: MAX7381
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    •  QuickView   Technical Documents   Ordering Info   More Information  
     Description 
     Key Features 
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     Diagram 

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    Document Ref.: 19-3697; Rev 0; 2005-06-02
    This page last modified: 2007-07-18




             


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