SN74ABT16541ADLRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments SN74ABT16541ADLRG4 is a 16-channel unidirectional bus buffer and line driver with 3-state outputs and dual output-enable control in a 48-pin SSOP package. It operates in the ABT logic family with 64 mA output sink current and 50 pF load drive capability. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 48
- Lifecycle
- OBSOLETE
- Datasheet
- SN74ABT16541ADLRG4 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 SN74ABT16541ADLRG4?
- 16-channel unidirectional 3-state buffer driving 50 pF loads at 64 mA sink current for high-fanout bus applications
- Dual active-low output enable pins providing flexible bank-split control of two 8-bit bus segments independently
- ABT logic family with fast propagation delays and TTL-compatible inputs enabling high-speed bus driving up to 100+ MHz
- 48-pin SSOP package minimizing PCB footprint for dense backplane and memory bus buffer designs
- 3-state output control allowing multiple SN74ABT16541 devices to share a common bus without contention
What is SN74ABT16541ADLRG4 used for?
The SN74ABT16541ADLRG4 is designed for memory bus buffering, backplane driving, and address/data bus isolation in high-speed digital systems such as FPGA development boards, DSP subsystems, and microprocessor memory interfaces. Its 16-channel 3-state outputs with dual enable control allow two independent 8-bit bus groups to be switched separately, simplifying bidirectional memory expansion designs. The device also serves as a line driver for long PCB traces and multi-drop bus topologies where output impedance matching and drive strength up to 64 mA are required.
What are the specifications of SN74ABT16541ADLRG4?
| 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 | SSOP48,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, 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 | 0.635mm |
| 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 SN74ABT16541ADLRG4 datasheet?
SN74ABT16541ADLRG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74ABT16541ADLRG4?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What output drive current and load capacitance can SN74ABT16541ADLRG4 handle for bus driving applications?
The SN74ABT16541ADLRG4 provides a maximum output sink current (I_OL) of 64 mA per channel and is rated for 50 pF load capacitance. These specs make it suitable for driving memory address buses, backplane signals, or multi-load PCB traces where long interconnects or heavy fanout would otherwise degrade signal integrity at bus frequencies of 50 MHz to 100 MHz.
How does the dual output-enable feature of SN74ABT16541ADLRG4 simplify 16-bit bus designs?
The SN74ABT16541ADLRG4 has two separate active-low output-enable inputs, OE1 and OE2, each controlling one 8-bit bank of its 16 channels independently. This allows a host controller to selectively enable the upper byte or lower byte of a 16-bit data bus without needing an external demultiplexer, reducing gate count and simplifying bus arbitration logic in memory or I/O expansion designs.
Is SN74ABT16541ADLRG4 compatible with 3.3 V and 5 V logic systems?
Yes. The SN74ABT16541ADLRG4 is part of the ABT (Advanced BiCMOS Technology) logic family, which accepts TTL-level inputs (V_IH min 2.0 V, V_IL max 0.8 V) and is powered from a 4.5 V to 5.5 V supply, making it directly compatible with 5 V TTL systems. For 3.3 V-output devices, the ABT inputs accept 3.3 V CMOS logic levels since V_IH = 2.0 V, enabling mixed 3.3 V / 5 V signal translation in the same bus segment.
What PCB footprint does the 48-pin SSOP package of SN74ABT16541ADLRG4 occupy?
The 48-pin SSOP (Shrink Small Outline Package) used by SN74ABT16541ADLRG4 has a body size of approximately 12.5 mm x 7.8 mm with a 0.635 mm pin pitch. This footprint is roughly 40% smaller in board area than an equivalent 48-pin SOIC, making the SSOP variant a space-saving choice for dense memory bus buffer sections on embedded computing and FPGA interface boards.
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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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