SCES469F August   2003  – March 2020 SN74LVC1404

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Simplified Schematic
  5. 5 Revision History
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Switching Characteristics, CL = 15 pF
    7. 7.7 Switching Characteristics, CL = 30 pF or 50 pF
    8. 7.8 Operating Characteristics
    9. 7.9 Typical Characteristics
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
    4. 9.4 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Testing
      3. 10.2.3 Application Curves
        1. 10.2.3.1 LVC1404 in 25-MHz Crystal-Oscillator Circuit
        2. 10.2.3.2 LVC1404 in 10-MHz Crystal-Oscillator Circuit
        3. 10.2.3.3 LVC1404 in 2-MHz Crystal-Oscillator Circuit
        4. 10.2.3.4 LVC1404 in 100-kHz Crystal-Oscillator Circuit
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Trademarks
    2. 13.2 Electrostatic Discharge Caution
    3. 13.3 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

パッケージ・オプション

デバイスごとのパッケージ図は、PDF版データシートをご参照ください。

メカニカル・データ（パッケージ｜ピン）
  • DCU|8
  • YZP|8
  • DCT|8
サーマルパッド・メカニカル・データ
発注情報

10.2.3.3 LVC1404 in 2-MHz Crystal-Oscillator Circuit

Equation 7. C1 ≈ C2 = 30 pF
Equation 8. XC2 = 2.4 kΩ (capacitive reactance at resonance frequency, that is, 2 MHz)
Equation 9. VCC = 3.3 V
SN74LVC1404 graph24_zza043.gifFigure 7. Effect of RS on Oscillator Waveform (Frequency = 2 MHz)

Table 5. Effect of RS on Duty Cycle and ICC
(Frequency = 2 MHz)

RS
(Ω)		 ICC
(mA)		 Positive Duty Cycle
(%)
240 11.1 45.9
2 k 7.3 47.3
10 k 8.6 46.7