74ABT16541ADGVRE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The 74ABT16541ADGVRE4 is a 16-bit non-inverting bus buffer and line driver from Texas Instruments in the ABT logic family, housed in a 48-pin SSOP package. It features dual active-low output enables and 3-state outputs for unidirectional data bus driving with 50pF load capacity. Available from stock worldwide for high-density bus interface and data path designs.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 48
- Lifecycle
- OBSOLETE
- Datasheet
- 74ABT16541ADGVRE4 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
- 16-bit 3-state bus driver with dual active-low output enables for flexible bus arbitration and data path control
- ABT logic family provides high-speed switching with bus-hold inputs to prevent floating signals on undriven lines
- 48-pin SSOP package integrates 16 driver channels for compact wide-bus interface PCB designs at 50pF load capacity
Applications
The 74ABT16541ADGVRE4 is used in microprocessor, DSP, and FPGA systems requiring 16-bit unidirectional data bus driving between high-capacitance backplane traces or memory banks. The dual output-enable inputs allow two independent groups of 8 bits to be enabled or tri-stated separately, supporting byte-wide bus control in 16-bit memory interfaces. The ABT family's speed and drive strength make it well suited for VMEbus, CompactPCI, and custom wide data bus applications where signal integrity over 50pF loads is critical.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | WITH DUAL OUTPUT ENABLE |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | ABT |
| JESD-30 Code | R-PDSO-G48 |
| 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 | 2 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP48,.25,16 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 34mA |
| Prop. Delay@Nom-Sup | 4.2ns |
| Propagation Delay (tpd) | 4.2ns |
| 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 | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.4mm |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the dual output-enable feature of the 74ABT16541ADGVRE4 allow in a 16-bit bus design?
The 74ABT16541ADGVRE4 has 2 independent active-low output-enable pins, each controlling 8 of the 16 driver outputs. This lets a system controller selectively enable the lower byte, upper byte, or the full 16-bit bus independently, which is essential in designs using an 8-bit memory alongside 16-bit peripherals, or when managing bus contention between two 8-bit data sources sharing a wide multiplexed bus.
How does the ABT logic family differ from the LVTH or ABT-related families for driving a 50pF bus load?
The ABT (Advanced BiCMOS Technology) family in the 74ABT16541ADGVRE4 combines bipolar output transistors with CMOS input stages, delivering higher output drive current and faster edge rates than pure CMOS LVT or LVTH families at 5V supply. For a 50pF bus load, ABT's strong drive reduces output rise times compared to standard CMOS, enabling higher bus operating frequencies. The 16-bit width in a 48-pin SSOP also means fewer ICs are needed to buffer a wide data bus.
In a 16-bit SRAM interface, why would a designer choose the 74ABT16541ADGVRE4 over two 8-bit buffer ICs?
Using a single 74ABT16541ADGVRE4 to buffer all 16 data lines reduces the BOM to 1 IC instead of 2, saving PCB area, reducing the number of decoupling capacitors, and simplifying routing in a 48-pin SSOP footprint versus two separate 20-pin packages. The dual output enables still provide byte-level control matching the function of two independent 8-bit drivers, so no flexibility is lost while board area and assembly cost decrease for the 16-bit SRAM interface.
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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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