SCASE82 January   2026 TPUL2T122-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Thermal Information
    4. 5.4 Electrical Characteristics
    5. 5.5 Recommended Operating Conditions
    6. 5.6 Timing Characteristics
    7.     13
    8. 5.7 Switching Characteristics
    9. 5.8 Typical Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
      1. 7.1.1 State Machine Description
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Naming Convention
      2. 7.3.2 Retriggerable One-Shot
      3. 7.3.3 Timing Mechanism and Accuracy
      4. 7.3.4 Balanced CMOS Push-Pull Outputs
      5. 7.3.5 CMOS Schmitt-Trigger Inputs
      6. 7.3.6 Latching Logic with Known Power-Up State
      7. 7.3.7 Reduced Input Threshold Voltages
      8. 7.3.8 Wettable Flanks
      9. 7.3.9 Clamp Diode Structure
    4. 7.4 Device Functional Modes
      1. 7.4.1 Off-State Operation
      2. 7.4.2 Startup Operation
      3. 7.4.3 On-State Operation
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application - Edge Detector
      1. 8.2.1 Design Requirements
        1. 8.2.1.1 Timing Components
        2. 8.2.1.2 Input Considerations
        3. 8.2.1.3 Output Considerations
        4. 8.2.1.4 Power Considerations
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
    3. 8.3 Typical Application - Delayed Pulse Generator
      1. 8.3.1 Application Curves
    4. 8.4 Power Supply Recommendations
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
      2. 8.5.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

5.6 Timing Characteristics

over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER DESCRIPTION CONDITION VCC MIN MAX UNIT
twi Pulse duration Any trigger input 1.5V 18.2 ns
1.8V ± 0.15V 9.9
2.5V ± 0.2V 7.8
3.3V ± 0.3V 5.8
5V ± 0.5V 4.1
tsu Setup time between trigger inputs 122: T low before T↑ or CLR↑
122A: T high before T↑ or CLR↑		 1.5V 9.6 ns
1.8V ± 0.15V 8
2.5V ± 0.2V 6.9
3.3V ± 0.3V 6.6
5V ± 0.5V 6.5
122: T high before T↓ or CLR↑
122A: T low before T↓ or CLR↑		 1.5V 5 ns
1.8V ± 0.15V 5
2.5V ± 0.2V 5
3.3V ± 0.3V 5
5V ± 0.5V 5
CLR high before T↓ or T↑ 1.5V 9.2 ns
1.8V ± 0.15V 7.8
2.5V ± 0.2V 6.7
3.3V ± 0.3V 6.5
5V ± 0.5V 6.4
th Hold time Any trigger input 1.5V 9.3 ns
1.8V ± 0.15V 7.8
2.5V ± 0.2V 6.7
3.3V ± 0.3V 6.5
5V ± 0.5V 6.4
CLR low after T↓ or T↑ 1.5V 0.1
1.8V ± 0.15V 0.1
2.5V ± 0.2V 0.1
3.3V ± 0.3V 0.1
5V ± 0.5V 0.1
trr Retrigger time Any trigger input, Cext = 100pF 1.5V 72 240 ns
1.8V ± 0.15V 63 184
2.5V ± 0.2V 41 93
3.3V ± 0.3V 30 66
5V ± 0.5V 22 46
Any trigger input, Cext = 0.1µF 1.5V 12 54 µs
1.8V ± 0.15V 11 44
2.5V ± 0.2V 7.7 26
3.3V ± 0.3V 6.6 20
5V ± 0.5V 5.5 15
Any trigger input, Cext = 10µF 1.5V 1.2 5.4 ms
1.8V ± 0.15V 1 4.3
2.5V ± 0.2V 0.7 2.5
3.3V ± 0.3V 0.6 1.9
5V ± 0.5V 0.5 1.4
tstartup(1) Startup time 1.5V to 5.5V 0 µs
(1) Triggers received during device startup may be ignored. The external timing capacitor requires time to charge after startup. For optimal first pulse accuracy, wait a minimum of one retrigger time (trr) after supply voltage has reached stable operating conditions before applying the first trigger.