Texas Instruments SN74F153N

Overview

SN74F153N from Texas Instruments is a dual 4-line to 1-line data selector/multiplexer in a 16-pin plastic DIP package, operating at 4.5–5.5 V with propagation delays as low as 2.2 ns (tPHL on data inputs), supporting parallel-to-serial conversion and cascaded multiplexing in TTL-compatible digital logic systems used in industrial control and legacy computing interfaces.

For engineers reviewing the SN74F153N datasheet, SN74F153N pinout, SN74F153N application, or SN74F153N equivalent, key selection considerations include its dual-section architecture with shared select lines (A/B), independent strobe inputs (1G/2G), guaranteed 20 mA output drive capability, and commercial temperature range (0°C to 70°C) for stable operation in non-military embedded logic designs.

Technical Context

The SN74F153N implements two independent 4:1 multiplexer sections using TTL-compatible bipolar F technology, each with dedicated strobe (enable) inputs (1G and 2G) and common binary select inputs A and B. Its internal structure includes inverters, drivers, and AND-OR gating to perform full binary decoding of four data inputs per section.

Propagation delay varies by signal path: tPLH/tPHL from select inputs (A/B) to outputs (Y) is 3.7–12 ns; from strobe (G) to Y is 3.7–10.5 ns; and from data inputs (C0–C3) to Y is 1.7–9 ns under recommended conditions (VCC = 4.5–5.5 V, CL = 50 pF, TA = 0°C to 70°C).

Key Specifications

Pinout & Package

SN74F153N is supplied in a 16-pin plastic dual in-line package (PDIP-N) with 0.3-inch body width and standard through-hole lead spacing. Pin 1 is located at the top-left corner when the notch faces upward.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual 4:1 multiplexer applications.

Compared with SN74F153N, SN74LS153N trades speed for lower power and cost in legacy TTL systems, while SN74HC153N offers voltage flexibility and noise resilience at the expense of raw speed - neither is a drop-in replacement without verifying timing and drive requirements.

Availability

SN74F153N is available at Aetrix Electronics and suitable for industrial control logic, legacy computer bus interface, and digital signal routing requiring stable component supply and long-term obsolescence management.

Supply support for SN74F153N includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader founded in 1930, specializing in analog, embedded processing, and logic solutions with broad industrial, automotive, and communications applications.

The SN74F153N belongs to TI's 74F TTL logic family, designed specifically for high-speed, low-noise digital signal routing in commercial-grade systems where performance and compatibility with legacy 74-series infrastructure are essential.

FAQ

What is the maximum clock frequency supported by SN74F153N in a synchronous multiplexing application?

The SN74F153N does not operate on a clock; it is a combinational logic device. Its usable data rate depends on propagation delay and system timing margins. With worst-case tPHL/tPLH of 12 ns, it supports reliable operation in logic paths with minimum pulse widths ≥25 ns - corresponding to effective toggle rates up to ~40 MHz in feedback-free configurations. For SN74F153N-based designs, always validate setup/hold times against driving and receiving devices.

Can SN74F153N be used with 3.3 V logic inputs?

No - SN74F153N requires TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) and a 4.5–5.5 V supply. A 3.3 V signal may not meet VIH specification reliably, risking logic misreads. If interfacing with 3.3 V systems, use a level translator such as SN74LVC1T45 or design with SN74HC153N instead. SN74F153N itself must be powered at 5 V.

Does SN74F153N support hot insertion or live swapping in powered systems?

No - SN74F153N lacks hot-swap protection features such as power-up 3-state or Ioff. Applying VCC before GND or inserting/removing while powered risks latch-up or permanent damage due to absolute maximum ratings being exceeded (e.g., input voltage > VCC + 0.5 V). Always power-cycle the board before replacing SN74F153N in service.

Are the two multiplexer sections of SN74F153N electrically isolated from each other?

Yes - the two 4:1 sections share only the A and B select inputs and VCC/GND rails; their data inputs (1C0–1C3, 2C0–2C3), strobes (1G, 2G), and outputs (1Y, 2Y) are fully independent. This allows simultaneous, uncorrelated selection - for example, routing different signals through each section while maintaining identical address control. SN74F153N's internal isolation prevents crosstalk between sections under normal operating conditions.

What is the recommended decoupling for SN74F153N in high-speed layouts?

Place a 0.1 µF ceramic capacitor between VCC (pin 14) and GND (pin 7) as close as possible to the SN74F153N package - lead length should be <2 mm. For boards with multiple SN74F153N units or dense logic, add a bulk 4.7 µF tantalum or aluminum electrolytic capacitor per 5–10 ICs on the same 5 V rail. Avoid shared vias between decoupling caps and signal traces to maintain SN74F153N timing integrity.