SN74F151BDRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
SN74F151BDRG4 is an 8-to-1 data selector and multiplexer from Texas Instruments' 74F FAST logic family, selecting one of eight input lines based on a 3-bit address and providing complementary true and inverted outputs with 20 mA sink capability. It operates on a 5 V TTL supply and achieves propagation delays typical of the FAST family. Packaged in a 16-pin SOIC, it suits data routing, function generation, and address demultiplexing in high-speed 5 V digital systems.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- SN74F151BDRG4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2392(MOQ 12500)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-to-1 data selector and multiplexer in 74F FAST logic family
- 8 data inputs with 3-bit binary address select
- Complementary true and inverted outputs on a single device
- 20 mA maximum output low sink current for TTL bus driving
- 50 pF rated load capacitance for FAST-family bus interfaces
- 16-pin SOIC package (JEDEC R-PDSO-G16)
- Active-low enable input for cascading multiple MUX stages
Applications
The SN74F151BDRG4 is used in 5 V TTL digital systems for data bus routing, where one of eight parallel data lines must be steered to a single output based on a 3-bit control address. Its complementary outputs enable direct connection to both inverting and non-inverting downstream logic without additional gates. High-speed address decoders, programmable logic function generators, and multi-source interrupt routers in industrial controllers and test instruments also leverage this device's FAST-family propagation speed.
Specifications
| 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 | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 21mA |
| 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 | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74F151BDRG4:
Multiplexer, F/FAST Series, 1-Func, 8 Line Input, 1 Line Output, Complementary Output, TTL, PDSO16
Multiplexer, F/FAST Series, 1-Func, 8 Line Input, 1 Line Output, Complementary Output, TTL, PDSO16
Frequently Asked Questions
How does the 3-bit address select work on the SN74F151BDRG4 to choose among 8 inputs?
The SN74F151BDRG4 uses three select pins (S0, S1, S2) to form a binary address from 000 to 111, routing the corresponding data input D0 through D7 to the output. With 3 select bits, the device covers all 8 input channels, so a logic 101 on S2:S0 steers input D5 to the output. The active-low enable input must be asserted low to allow data propagation; a high enable forces the output to its inactive state regardless of address.
What output drive strength does the SN74F151BDRG4 provide, and can it drive multiple TTL inputs?
Each output of the SN74F151BDRG4 sinks up to 20 mA in the low state, which satisfies the 3.2 mA low-state input current of standard 74LS gates, giving a fan-out of approximately 6 standard 74LS loads. The 50 pF load capacitance rating also supports moderate-length PCB trace routing. Both the true output and the complementary inverted output are available simultaneously, allowing dual-polarity signal distribution without additional inverters.
How does using the SN74F151BDRG4 as a logic function generator reduce gate count?
By connecting the 8 data inputs to the desired truth table values (VCC for logic one or GND for logic zero) and driving the 3 address pins with input variables A, B, C, the SN74F151BDRG4 implements any arbitrary 3-variable Boolean function in a single 16-pin IC. This approach replaces combinations of AND, OR, and NOT gates that might otherwise require 3 or more separate 14-pin logic packages, reducing board area and interconnection complexity.
Is the SN74F151BDRG4 compatible with standard 5 V TTL and LSTTL logic families?
Yes. The SN74F151BDRG4 operates from a 4.75 V to 5.25 V supply and conforms to TTL input and output voltage levels, making it directly compatible with 74LS, 74ALS, and 74F family devices. Its FAST-family propagation delay is typically under 5 ns, which is faster than 74LS (approximately 10 ns), allowing it to replace 74LS151 multiplexers in timing-critical paths without changing the logic design or external circuitry.
For a multi-source signal router, how can two SN74F151BDRG4 devices be cascaded to select among 16 inputs?
Two SN74F151BDRG4 devices can share the same 3-bit address bus while their active-low enable inputs are driven by a fourth selection bit: one device enabled when the bit is low, the other enabled when the bit is high via an inverter. Their outputs are then wire-OR connected with a common pull-up resistor, or combined through a 2-input OR gate, expanding coverage from 8 inputs to 16 inputs while adding only one inverter and one gate to the signal path.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 12500+ | $0.2437 | $3045.75 |
| 17500+ | $0.2414 | $4224.15 |
| 25000+ | $0.2392 | $5979.50 |
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