SN74ABT540N Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The SN74ABT540N is an octal buffer and driver with 3-state outputs from Texas Instruments. It features dual output enable control for unidirectional bus driving at 50 pF load capacitance. Available in DIP-20 package from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- SN74ABT540N 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
Key Features
- Octal 3-state outputs with dual output enable (active-low) for flexible bus control
- ABT logic family: high-speed, low-power with TTL-compatible inputs and CMOS outputs
- 20-pin DIP package with 50 pF load capacitance and JESD-30 R-PDIP-T20 compliance
- RoHS compliant (JESD-609 e4) with extended commercial temperature range support
Applications
The SN74ABT540N is widely used in data bus buffering and driving applications in embedded systems, servers, and industrial control boards where multiple data lines need isolation or signal amplification. Its dual output enable inputs make it ideal for bidirectional bus interface designs and address/data multiplexing in microprocessor systems. The 3-state outputs allow multiple devices to share a common bus without contention.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | WITH DUAL OUTPUT ENABLE |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | ABT |
| JESD-30 Code | R-PDIP-T20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.064A |
| Number of Bits | 8 |
| Number of Functions | 8 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | INVERTED |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 30mA |
| Prop. Delay@Nom-Sup | 4.8ns |
| Propagation Delay (tpd) | 4.8ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74ABT540N:
Bus Driver, ABT Series, 8-Func, 4-Bit, Inverted Output, BICMOS, PDSO20
Bus Driver, ABT Series, 8-Func, 4-Bit, Inverted Output, BICMOS, PDSO20
Frequently Asked Questions
What is the logic family of the SN74ABT540N and what does it mean for performance?
The SN74ABT540N belongs to the ABT (Advanced BiCMOS Technology) logic family, which combines the low power of CMOS with the high speed of bipolar transistors. This results in fast propagation delays typically under 4 ns, making it suitable for high-speed bus applications.
How do the dual output enable pins work on the SN74ABT540N?
The SN74ABT540N has two active-low output enable pins (1OE and 2OE). When either pin is driven high, the corresponding outputs enter a high-impedance (3-state) condition, effectively disconnecting them from the bus. Both must be low to enable the outputs, supporting flexible bus arbitration with 50 pF load capacitance.
What package does the SN74ABT540N use and how many pins does it have?
The SN74ABT540N comes in a 20-pin Dual-In-Line Package (DIP), designated JESD-30 code R-PDIP-T20. The through-hole DIP package is well-suited for prototyping and applications where socketing is required.
Is the SN74ABT540N RoHS compliant?
Yes, the SN74ABT540N is RoHS compliant with JESD-609 code e4, indicating it is a lead-free (Pb-free) device. It meets environmental regulations for hazardous substance restrictions used in the EU and other markets.
What are common replacements or alternatives for the SN74ABT540N?
Common alternatives include the SN74ABT540PWR (TSSOP package) for surface-mount designs, the SN74LVTH540 for 3.3 V systems, or the SN74ACT540 for the ACT logic family. Selection depends on supply voltage, speed requirements, and PCB form factor constraints.
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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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