SN74AHCT157NSRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74AHCT157NSRG4 is a quad 2-to-1 line data selector/multiplexer in the AHCT logic family, selecting one of 2 input channels across 4 independent sections. It operates from a 4.5 V to 5.5 V supply in a 16-pin SOIC package for high-speed digital routing.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- SN74AHCT157NSRG4 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 SN74AHCT157NSRG4?
- Quad 2-to-1 multiplexer with 4 independent selection sections
- AHCT logic family operating from 4.5 V to 5.5 V supply
- High-speed switching with 50 pF load capacitance specification
- 8 mA output drive current per output for standard logic bus driving
- 16-pin SOIC package for standard SMT assembly
- True output polarity simplifies signal routing in bus selection circuits
What is SN74AHCT157NSRG4 used for?
The SN74AHCT157NSRG4 is used in data bus routing, address multiplexing, and signal selection circuits in microcontroller and FPGA systems where 2 input sources must be switched to a common output. It is commonly found in memory address selection, test and measurement equipment, and communication interfaces requiring reliable 5 V logic-level multiplexing.
What are the specifications of SN74AHCT157NSRG4?
| YTEOL | 0 |
| Family | AHCT/VHCT/VT |
| JESD-30 Code | R-PDSO-G16 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | MULTIPLEXER |
| Max I(ol) | 0.008A |
| Number of Functions | 4 |
| Number of Inputs | 2 |
| Number of Outputs | 1 |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Power Supply Current-Max (ICC) | 0.02mA |
| Prop. Delay@Nom-Sup | 9.8ns |
| Propagation Delay (tpd) | 9.8ns |
| 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 | CMOS |
| Temperature Grade | INDUSTRIAL |
| 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 SN74AHCT157NSRG4 datasheet?
SN74AHCT157NSRG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74AHCT157NSRG4?
Compatible alternatives and drop-in replacements for SN74AHCT157NSRG4:
Multiplexer, AHCT/VHCT/VT Series, 4-Func, 2 Line Input, 1 Line Output, True Output, CMOS, PDSO16
Frequently Asked Questions
How many simultaneous 2-to-1 multiplexing operations does SN74AHCT157NSRG4 support?
The SN74AHCT157NSRG4 contains 4 independent 2-to-1 data selectors, allowing 4 parallel signal paths to be switched simultaneously with a single common select input, making it efficient for 4-bit bus multiplexing.
Can SN74AHCT157NSRG4 interface directly with 3.3 V microcontroller outputs driving a 5 V bus?
The AHCT logic family accepts CMOS-compatible inputs from approximately 2 V logic-high threshold, so 3.3 V outputs from most microcontrollers can drive SN74AHCT157NSRG4 inputs correctly while the device outputs 5 V logic levels.
In a PCB redesign, does SN74AHCT157NSRG4 have footprint-compatible alternatives in the HC or HCT logic families?
Yes. The SN74AHCT157 is pin-compatible with SN74HCT157 and SN74HC157 variants in the same 16-pin SOIC package, allowing designers to swap logic families without PCB changes while evaluating speed, voltage, and supply current tradeoffs.
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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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