SN74HC251DTG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74HC251DTG4 is an 8-to-1 data selector/multiplexer IC in a 16-SOIC package from Texas Instruments. It features three-state outputs, enabling bus-driving applications with up to 50 pF load capacitance. Available in stock worldwide with competitive pricing and RoHS-compliant e4 designation.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- SN74HC251DTG4 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
- 8-to-1 single multiplexer with three-state outputs for bus-driving capability
- HC/UH logic family with 50 pF load capacitance and 6 mA output sink current
- RoHS-compliant JESD-609 e4 rated 16-SOIC package for surface-mount applications
Applications
The SN74HC251DTG4 is widely used in data routing and bus multiplexing applications in embedded systems and digital logic designs. It suits signal selection circuits in communication equipment, industrial controllers, and consumer electronics where multiple input sources must be steered to a single output line. Its three-state output capability makes it ideal for shared bus architectures requiring high-impedance states.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Family | HC/UH |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | MULTIPLEXER |
| Max I(ol) | 0.006A |
| 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 | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 49ns |
| Propagation Delay (tpd) | 375ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| 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
Compatible alternatives and drop-in replacements for SN74HC251DTG4:
Multiplexer, HC/UH Series, 1-Func, 8 Line Input, 1 Line Output, Complementary Output, CMOS, PDSO16
Frequently Asked Questions
What is the output configuration of the SN74HC251DTG4?
The SN74HC251DTG4 features three-state outputs, allowing the device to be used in bus-driving applications. The output can be placed in a high-impedance state, enabling multiple devices to share a common bus line without signal contention.
What load capacitance does the SN74HC251DTG4 support?
The SN74HC251DTG4 supports a maximum load capacitance (CL) of 50 pF. It also has a maximum output low current (IOL) of 6 mA, making it suitable for standard TTL-compatible logic interfacing in 16-SOIC package designs.
What package type is the SN74HC251DTG4 available in?
The SN74HC251DTG4 is available in a 16-pin Small Outline Integrated Circuit (SOIC) package, designated as R-PDSO-G16 per JESD-30 standards. This surface-mount package is ideal for compact PCB designs requiring space-efficient component placement.
Is the SN74HC251DTG4 RoHS compliant?
Yes, the SN74HC251DTG4 is RoHS compliant with a JESD-609 Code of e4, indicating it is manufactured without restricted hazardous substances. It is also marked as Pb-free, making it suitable for lead-free soldering processes in modern electronics manufacturing.
What are common alternatives or substitutes for the SN74HC251DTG4?
Common alternatives include the SN74HC251N (DIP package), SN74HC251D (standard SOIC), and CD74HC251 from other manufacturers. All share the same 8-to-1 multiplexer with three-state outputs functionality, though package and operating temperature ranges may vary slightly.
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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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