SCAS512G June   1995  – March 2024 SN54AC240 , SN74AC240

PRODMIX  

  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 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Switching Characteristics, VCC = 3.3 V ± 0.3 V
    7. 5.7 Switching Characteristics, VCC = 5 V ± 0.5 V
    8. 5.8 Operating Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Power Supply Recommendations
    2. 8.2 Layout
      1. 8.2.1 Layout Guidelines
        1. 8.2.1.1 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Links
    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

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DB|20
  • NS|20
  • N|20
  • DW|20
  • PW|20
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5.5 Electrical Characteristics

over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS VCC TA = 25°C SN54AC240 SN74AC240 UNIT
MIN TYP MAX MIN MAX MIN MAX
VOH Ioh = -50 µA 3 V 2.9 2.9 2.9 V
4.5 V 4.4 4.4 4.4
5.5 V 5.4 5.4 5.4
Ioh = -12 mA 3 V 2.56 2.4 2.46
Ioh = -24 mA 4.5 V 3.86 3.7 3.76
5.5 V 4.86 4.7 4.76
Ioh = -50 mA (1) 5.5 V 3.85
Ioh = -75 mA (1) 5.5 V 3.85
VOL Iol = 50 µA 3 V 0.1 0.1 0.1 V
4.5 V 0.1 0.1 0.1
5.5 V 0.1 0.1 0.1
Iol = 12 mA 3 V 0.36 0.5 0.44
Iol = 24 mA 4.5 V 0.36 0.5 0.44
5.5 V 0.36 0.5 0.44
Iol = 50 mA (1) 5.5 V 1.65
Iol = 75 mA (1) 5.5 V 1.65
II Data inputs VI = VCC or GND 5.5 V ±0.1 ±1 ±1 µA
Control inputs VI = VCC or GND ±0.1 ±1 ±1
IOZ (2) VO = Vcc or GND, VI(OE) = VIL or VIH 5.5 V ±0.25 ±5 ±2.5 µA
ICC VI = VCC or GND, IO = 0 5.5 V 4 80 40 µA
Ci VI = VCC or GND 5 V 2.5 pF
(1) Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms.
(2) For I/O ports, the parameter IOZ includes the input leakage current.