CD74ACT540M96G4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments CD74ACT540M96G4 is an octal inverting buffer and line driver from the ACT logic family with dual active-low output enable control. Features unidirectional data flow, 24mA output low current capability, 50pF load capacitance rating, and 20-pin SOIC package for high-drive bus interfacing. Available in tape-and-reel with RoHS-compliant lead-free construction. In stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- CD74ACT540M96G4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Octal (8-bit) inverting buffer/line driver in ACT CMOS family with dual active-low output enable for independent or combined bus control
- 24mA maximum output low current (IOL) with 50pF load capacitance rating enabling robust drive of heavily loaded bus lines
- Unidirectional data flow with active-low enable control simplifying bus isolation and direction management in microprocessor systems
- 20-pin SOIC package (R-PDSO-G20) in tape-and-reel with RoHS-compliant lead-free e4 construction for automated high-volume assembly
Applications
The CD74ACT540M96G4 octal inverting bus driver is widely used in microprocessor and microcontroller systems to buffer and drive data, address, and control buses between ICs at different drive strengths, enabling reliable communication across PCB traces with high capacitive loading. Its dual output enable inputs allow it to function as a bus isolator, selectively connecting or disconnecting bus segments in memory expansion, peripheral interface, and backplane applications. The ACT family's TTL-compatible inputs make it ideal for mixed 3.3V/5V systems and legacy-compatible designs requiring high fan-out with active bus drive.
Specifications
| YTEOL | 0 |
| Additional Feature | WITH DUAL OUTPUT ENABLE |
| 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 | 8 |
| Number of Functions | 1 |
| 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 | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.16mA |
| Prop. Delay@Nom-Sup | 7.2ns |
| Propagation Delay (tpd) | 7.2ns |
| 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 | MILITARY |
| 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 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the logic family of the CD74ACT540M96G4 and what does it mean?
The CD74ACT540M96G4 belongs to the ACT (Advanced CMOS TTL-compatible) logic family. ACT devices feature CMOS technology with TTL-compatible input thresholds, enabling them to interface directly with TTL outputs while consuming much less power than equivalent TTL devices. The ACT family offers high noise immunity and is suitable for systems requiring 5V operation with TTL input compatibility.
What is the output drive current of the CD74ACT540M96G4?
The CD74ACT540M96G4 provides a maximum output low current (IOL) of 24mA (0.024A) per output channel. This high drive capability allows it to sink significant current when driving heavily loaded bus lines with 50pF load capacitance. The 8 parallel output channels enable simultaneous driving of an 8-bit data or address bus with strong fan-out capability.
How does the output enable work on the CD74ACT540M96G4?
The CD74ACT540M96G4 features dual output enable inputs, both active-low (Control Type: Enable Low). When either enable input is high, all 8 outputs are placed in the high-impedance (tri-state) condition, isolating the bus. Both enable inputs must be asserted low simultaneously to activate the outputs, providing flexibility for various bus control and gating configurations.
What package does the CD74ACT540M96G4 come in?
The CD74ACT540M96G4 is packaged in an R-PDSO-G20 (20-pin plastic dual small outline), commonly known as a 20-pin SOIC. The M96 suffix indicates the 96-unit tape-and-reel format for automated SMT assembly. The G4 suffix confirms RoHS-compliant lead-free construction (JESD-609 code e4), meeting current environmental standards.
What are common applications for the CD74ACT540M96G4?
Common applications include driving data and address buses in microprocessor systems, acting as bus buffers between CPUs and memory or peripheral devices, bus isolation and direction control in backplane designs, signal level restoration on long PCB traces, and interface buffering between logic families. The inverting characteristic makes it suitable for applications requiring complementary bus drive or signal inversion.
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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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