SN74ACT240DWE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74ACT240DWE4 is an octal buffer and line driver IC from Texas Instruments with inverting 3-state outputs, built using ACT CMOS technology. It offers 24 mA output low current drive capability, operates from a 4.5 V to 5.5 V supply, and is housed in a 20-pin SOIC package for high-drive bus interface applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- SN74ACT240DWE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74ACT240DWE4?
- Octal inverting buffer with 3-state outputs for direct connection to shared digital bus lines
- 24 mA maximum output low current providing strong bus drive capability for large fan-out
- ACT CMOS family with TTL-compatible input thresholds for mixed TTL/CMOS system interfaces
- Active-low output enable for easy bus sharing in tri-state bus architectures
- 20-pin SOIC package compatible with standard surface-mount PCB assembly processes
What is SN74ACT240DWE4 used for?
The SN74ACT240DWE4 is used as a bus buffer and line driver in microprocessor address and data buses, memory interface circuits, and peripheral interface logic. Its strong 24 mA output drive and TTL-compatible inputs make it ideal for driving large capacitive bus loads in industrial control systems, data acquisition hardware, and embedded computing platforms.
What are the specifications of SN74ACT240DWE4?
| YTEOL | 0 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | ACT |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.024A |
| Number of Bits | 4 |
| Number of Functions | 2 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | INVERTED |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.04mA |
| Prop. Delay@Nom-Sup | 9.5ns |
| Propagation Delay (tpd) | 9.5ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
Where can I find the SN74ACT240DWE4 datasheet?
SN74ACT240DWE4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74ACT240DWE4?
Compatible alternatives and drop-in replacements for SN74ACT240DWE4:
Bus Driver, ACT Series, 2-Func, 4-Bit, Inverted Output, CMOS, PDSO20
Bus Driver, ACT Series, 2-Func, 4-Bit, Inverted Output, CMOS, PDSO20
Frequently Asked Questions
What is the output drive current of the SN74ACT240DWE4?
The SN74ACT240DWE4 provides a maximum output low current of 24 mA, enabling it to drive large bus loads and multiple device inputs in parallel without significant voltage drop.
Does the SN74ACT240DWE4 have inverting or non-inverting outputs?
The SN74ACT240DWE4 has inverting outputs (designated by the '240' part number suffix), providing complement of the input logic level at each output for use in bus driver and level inversion applications.
What is the supply voltage range of the SN74ACT240DWE4?
The SN74ACT240DWE4 operates from 4.5 V to 5.5 V supply voltage, compatible with standard 5 V TTL and CMOS digital logic systems in industrial and embedded computing applications.
What package does the SN74ACT240DWE4 use?
The SN74ACT240DWE4 is packaged in a 20-pin SOIC (Small Outline Integrated Circuit) package, offering an industry-standard surface-mount footprint compatible with automated reflow soldering assembly.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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