Texas Instruments SN74F352N

Overview

SN74F352N from Texas Instruments is a dual 4-line to 1-line data selector/multiplexer with active-low enable and complementary outputs, operating at 5 V supply, with typical propagation delay of 3.5 ns at V_CC = 5 V and T_A = 25°C, used in digital logic routing and address decoding in TTL-based systems.

For engineers reviewing the SN74F352N datasheet, SN74F352N pinout, SN74F352N application, or SN74F352N equivalent, key selection criteria include its dual-channel 4:1 multiplexing capability, complementary output structure, TTL-compatible input thresholds, and through-hole DIP-16 package suitability for legacy board-level integration and test fixtures.

Technical Context

The SN74F352N implements two independent 4-input multiplexers sharing common select lines (S0, S1) and individual active-low enables (/E1, /E2), each producing true and complemented outputs (Y, /Y). It uses bipolar F-type TTL technology, ensuring compatibility with standard 74F logic families and supporting fan-out of 10 to similar loads.

Its internal architecture avoids latching or storage; all outputs respond combinatorially to input and select states. The device requires no external biasing or termination for nominal operation across the commercial temperature range (0°C to 70°C) and 4.5 V–5.5 V supply.

Key Specifications

Pinout & Package

SN74F352N is housed in a 16-pin plastic dual in-line package (PDIP-16) with 0.3-inch body width and standard through-hole mounting footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LS352N, the SN74F352N delivers 4× faster switching and higher drive; compared with SN74F153N, it adds integrated complementary outputs-critical for differential signaling or logic inversion without added components.

Availability

SN74F352N is available at Aetrix Electronics and suitable for computer address decoding, industrial control logic, test equipment signal switching, and legacy communication interface design requiring stable component supply and long-term obsolescence management.

Supply support for SN74F352N 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 company founded in 1930, specializing in analog, embedded processing, and logic ICs with broad industrial and automotive reach.

The SN74F352N belongs to TI's 74F TTL logic product line, designed for high-speed digital systems requiring reliable, pin-compatible upgrades from earlier 74-series families in commercial and industrial applications.

FAQ

What is the maximum operating frequency supported by the SN74F352N?

The SN74F352N does not specify a maximum clock frequency in its datasheet because it is a combinatorial multiplexer, not a clocked device. Its usable switching rate depends on propagation delay (3.5 ns typical) and system setup/hold timing. In practice, it reliably supports data routing in systems with clock periods ≥ 10 ns (i.e., ≤ 100 MHz toggle rate) when interfaced with compatible 74F logic.

Does the SN74F352N support 3.3 V operation?

No, the SN74F352N is specified only for 4.5 V to 5.5 V operation and is not 3.3 V tolerant. Applying 3.3 V to V_CC results in undefined logic thresholds and degraded performance. For 3.3 V systems, consider modern alternatives like SN74LVC153 or level-shifting interfaces-not the SN74F352N.

Are the /Y1 and /Y2 outputs truly complementary to Y1 and Y2 on the SN74F352N?

Yes, the /Y1 and /Y2 outputs of the SN74F352N are actively driven complements of Y1 and Y2 respectively, with matched propagation delays (within 0.5 ns) and full TTL voltage levels. This is confirmed in the functional truth table and AC characteristics section of the official SN74F352N datasheet.

Can the SN74F352N be used in place of the SN74F153N?

The SN74F352N is not a direct replacement for the SN74F153N due to differing pinouts: SN74F352N includes dedicated /Y1 and /Y2 pins (pins 6 and 13), while SN74F153N omits them. Using SN74F352N in an SN74F153N footprint requires PCB modification unless /Y signals are left unconnected and unused.

What is the recommended decoupling for the SN74F352N?

TI recommends a 0.1 µF ceramic capacitor placed as close as possible to pins 8 (GND) and 16 (V_CC) of the SN74F352N. For boards with multiple 74F devices, add a bulk 4.7 µF–10 µF electrolytic capacitor per power plane segment. This maintains stable V_CC during fast TTL switching transitions and prevents ground bounce in the SN74F352N.