SN74BCT2241DWR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74BCT2241DWR is an octal buffer and line driver with 3-state outputs from Texas Instruments' BCT logic family, featuring integrated 33 Ω series output resistors to dampen bus reflections. It operates at 5 V with enable-low and enable-high control inputs in a 20-pin SOIC package for high-drive bus applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- SN74BCT2241DWR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74BCT2241DWR?
- Octal 3-state buffer and line driver with unidirectional data flow
- Integrated 33 Ω output series resistors for signal integrity on long bus traces
- Dual enable control (active-low and active-high) for flexible bus arbitration
- BCT family with high-drive outputs up to 12 mA for MOS bus driving
- 20-pin SOIC package with 50 pF load capacitance rating for reliable bus switching
What is SN74BCT2241DWR used for?
The SN74BCT2241DWR is designed for memory expansion buses, backplane data paths, and system-level bus driving in industrial and computing environments where signal integrity over board traces is critical. Its integrated 33 Ω series resistors eliminate the need for external damping components and reduce PCB complexity, simplifying high-speed board design. The dual active-low and active-high enable inputs allow flexible bus sharing among multiple master devices in multi-processor or FPGA-based architectures.
What are the specifications of SN74BCT2241DWR?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | OUTPUT ENABLE ACTIVE HIGH FOR ONE FUNCTION; 33 OHM OUTPUT SERIES RESISTOR |
| Control Type | ENABLE LOW/HIGH |
| Count Direction | UNIDIRECTIONAL |
| Family | BCT/FBT |
| JESD-30 Code | R-PDSO-G20 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.012A |
| Number of Bits | 4 |
| Number of Functions | 2 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE WITH SERIES RESISTOR |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Power Supply Current-Max (ICC) | 76mA |
| Prop. Delay@Nom-Sup | 6.9ns |
| Propagation Delay (tpd) | 6.9ns |
| 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 | COMMERCIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Where can I find the SN74BCT2241DWR datasheet?
SN74BCT2241DWR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74BCT2241DWR?
Compatible alternatives and drop-in replacements for SN74BCT2241DWR:
Bus Driver, BCT/FBT Series, 2-Func, 4-Bit, True Output, BICMOS, PDSO20
Bus Driver, BCT/FBT Series, 2-Func, 4-Bit, True Output, BICMOS, PDSO20
Bus Driver, BCT/FBT Series, 2-Func, 4-Bit, True Output, BICMOS, PDSO20
Bus Driver, BCT/FBT Series, 2-Func, 4-Bit, True Output, BICMOS, PDSO20
Bus Driver, BCT/FBT Series, 2-Func, 4-Bit, True Output, BICMOS, PDSO20
Frequently Asked Questions
Why does the SN74BCT2241DWR include 33 Ω output series resistors, and how does this improve signal quality?
The integrated 33 Ω output series resistors on the SN74BCT2241DWR form a termination network with the parasitic capacitance of long PCB traces, reducing ringing and reflection on bus lines. This is especially valuable when driving capacitive loads up to 50 pF over traces longer than a few centimeters, improving signal integrity without requiring external resistor arrays.
How does the dual enable control structure of the SN74BCT2241DWR support multi-master bus designs?
The SN74BCT2241DWR provides both an active-low and an active-high output-enable input, allowing the 8 output channels to be enabled or tri-stated independently by different logic signals. This dual-control scheme lets bus masters with inverted or non-inverted enable logic share the same data bus without additional inverter stages, saving components in multi-processor and FPGA systems.
What output current drive does the SN74BCT2241DWR provide and which bus loads can it reliably drive?
The SN74BCT2241DWR delivers a maximum output low current (IOL) of 12 mA per channel while maintaining a valid logic low at the output. This current drive capacity, combined with the 33 Ω series resistors and 5 V supply operation, is sufficient to drive typical MOS memory bus loads with capacitance up to 50 pF, covering most SRAM and Flash interface scenarios.
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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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