SCLS393Q APRIL   1998  – August 2015 SN74LV123A

UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Pin Configuration and 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  Timing Requirements, VCC = 2.5 V ± 0.2 V
    7. 7.7  Timing Requirements, VCC = 3.3 V ± 0.3 V
    8. 7.8  Timing Requirements, VCC = 5 V ± 0.5 V
    9. 7.9  Switching Characteristics, VCC = 2.5 V ± 0.2 V
    10. 7.10 Switching Characteristics, VCC = 3.3 V ± 0.3 V
    11. 7.11 Switching Characteristics, VCC = 5 V ± 0.5 V
    12. 7.12 Operating Characteristics
    13. 7.13 Typical Characteristics
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagrams
    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
        1. 10.2.1.1 Power-Down Considerations
        2. 10.2.1.2 Output Pulse Duration
        3. 10.2.1.3 Retriggering Data
      2. 10.2.2 Detailed Design Procedure
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Documentation Support
      1. 13.1.1 Related Documentation
    2. 13.2 Related Links
    3. 13.3 Community Resources
    4. 13.4 Trademarks
    5. 13.5 Electrostatic Discharge Caution
    6. 13.6 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

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1 Features

  • 2-V to 5.5-V VCC Operation
  • Maximum tpd of 11 ns at 5 V
  • Typical VOLP (Output Ground Bounce)
    < 0.8 V at VCC = 3.3 V, TA = 25°C
  • Typical VOHV (Output VOH Undershoot)
    > 2.3 V at VCC = 3.3 V, TA = 25°C
  • Support Mixed-Mode Voltage Operation on
    All Ports
  • Schmitt-Trigger Circuitry on A, B, and CLR Inputs for Slow Input Transition Rates
  • Edge Triggered From Active-High or
    Active-Low Gated Logic Inputs
  • Ioff Supports Partial-Power-Down Mode Operation
  • Retriggerable for Very Long Output Pulses,
    up to 100% Duty Cycle
  • Overriding Clear Terminates Output Pulse
  • Glitch-Free Power-Up Reset on Outputs
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class 11
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)

2 Applications

  • AV Receivers
  • Blu-ray Players and Home Theaters
  • DVD Recorders and Players
  • Desktop PCs or Notebook PCs
  • Digital Radio and Internet Radio Players
  • Digital Video Cameras (DVC)
  • Embedded PCs
  • GPS: Personal Navigation Devices
  • Mobile Internet Devices
  • Network Attached Storage (NAS)
  • Personal Digital Assistant (PDA)
  • Server PSU
  • Solid-State Drive (SSD): Client and Enterprise
  • Video Analytics Servers
  • Wireless Headsets, Keyboard, and Mice

3 Description

The 'LV123A devices are dual retriggerable monostable multivibrators designed for 2-V to 5.5-V VCC operation.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
SN74LV123AD SOIC (16) 6.00 mm x 9.90 mm
SN74LV123ADB SSOP (16) 7.80 mm x 6.20 mm
SN74LV123ANS SO (16) 7.80 mm x 10.20 mm
SN74LV123APW TSSOP (16) 6.40 mm x 5.00 mm
SN74LV123ARGY VQFN (16) 3.50 mm x 4.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Logic Diagram, Each Multivibrator (Positive Logic)

SN54LV123A SN74LV123A ld_cls393.gif