SN74F251BD Texas Instruments Integrated Circuit (Other) In Stock
SN74F251BD is a high-speed 8-input, 1-of-8 data selector/multiplexer with 3-state outputs from Texas Instruments. Features 50pF load capacitance, 20mA output current, and F/FAST logic family performance. From $0.37, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- SN74F251BD Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3710(MOQ 1)
- 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 SN74F251BD?
- High-speed F/FAST logic family with 8-input multiplexing in a single package
- 3-state output enable for bus-oriented applications and wired-OR logic
- 20mA output sink current (I_OL) suitable for driving TTL and CMOS loads
- 50pF load capacitance rating ensures signal integrity in high-frequency designs
- Low-power consumption with wide operating voltage range for flexible system integration
What is SN74F251BD used for?
The SN74F251BD is widely used in digital data routing and bus switching applications where one of eight data inputs must be selected and forwarded to a common output. Its 3-state outputs make it ideal for microprocessor address/data buses, memory bank selection, and signal multiplexing in communication equipment. It also serves in test and measurement systems, programmable logic controllers, and any embedded design requiring high-speed data selection with minimal propagation delay.
What are the specifications of SN74F251BD?
| YTEOL | 0 |
| Family | F/FAST |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | MULTIPLEXER |
| Max I(ol) | 0.02A |
| Number of Bits | 2 |
| Number of Functions | 1 |
| Number of Inputs | 8 |
| Number of Outputs | 1 |
| Output Characteristics | 3-STATE |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 20mA |
| Prop. Delay@Nom-Sup | 9.5ns |
| Propagation Delay (tpd) | 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 | TTL |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Mexico |
Where can I find the SN74F251BD datasheet?
SN74F251BD Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74F251BD?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the SN74F251BD and what does it do?
The SN74F251BD is a high-speed 8-input data selector/multiplexer from Texas Instruments in the F/FAST logic family. It selects one of eight input signals based on a 3-bit binary address and routes it to a 3-state output, enabling efficient data bus management with 20mA sink current capability and 50pF load capacitance.
What are the key electrical specifications of the SN74F251BD?
The SN74F251BD features a maximum output low current (I_OL) of 20mA, load capacitance of 50pF, and operates with the F/FAST logic family supply voltage. It provides 8 data inputs, a 3-bit select input, and a 3-state output controlled by an active-low output enable pin, packaged in a 16-pin SOIC (R-PDSO-G16) package.
What applications is the SN74F251BD suitable for?
The SN74F251BD is ideal for microprocessor and microcontroller bus interfaces, memory bank selection, data routing in communication systems, and signal multiplexing in industrial control equipment. Its 3-state output makes it well-suited for multi-master bus architectures, where multiple devices share a common data line.
What package does the SN74F251BD come in and are there compatible alternatives?
The SN74F251BD is housed in a 16-pin small-outline IC (SOIC) package (JESD-30 code R-PDSO-G16) with a lead-free e4 finish per JESD-609. Compatible pin alternatives include the SN74LS251 and SN74HCT251 from Texas Instruments, which share the same pinout but differ in speed and power characteristics.
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Why Buy from FindMyChip
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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.7950 | $0.80 |
| 24+ | $0.4770 | $11.45 |
| 106+ | $0.3710 | $39.33 |
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