Texas Instruments SN74HC153NE4

Overview

SN74HC153NE4 from Texas Instruments is a dual 4-line to 1-line data selector/multiplexer in 16-pin PDIP package, operating from 2 V to 6 V supply, with typical propagation delay of 32 ns at 5 V and ±6-mA output drive capability. It performs parallel-to-serial conversion and supports cascading via independent strobe (G) inputs per channel, used in digital logic routing and address decoding in industrial control systems.

For engineers reviewing the SN74HC153NE4 datasheet, SN74HC153NE4 pinout, SN74HC153NE4 application, or SN74HC153NE4 equivalent, key selection criteria include its dual-channel multiplexing architecture, 5-V-compatible CMOS logic levels, low 80-μA max ICC quiescent current, and compatibility with LSTTL loads - critical for legacy-compatible digital interface design and signal routing in embedded controllers.

Technical Context

The SN74HC153NE4 implements full binary decoding using AND-OR-inverter logic to select one of four data inputs per channel based on shared A/B address lines. Each channel features an independent active-low strobe (G) input that forces its Y output low when asserted, enabling synchronized gating and hierarchical multiplexing.

It operates within −40°C to +85°C ambient temperature, supports 50-pF load switching, and maintains rail-to-rail output swing (VOH ≥ 4.4 V, VOL ≤ 0.26 V at VCC = 4.5 V, IO = ±6 mA), ensuring robust noise margin and interoperability with mixed-voltage logic families.

Key Specifications

Pinout & Package

SN74HC153NE4 uses a 16-pin plastic dual in-line package (PDIP-N), body size 19.31 mm × 6.35 mm, with standard through-hole mounting and 0.1-inch lead pitch. Pin 1 is marked by a notch or dot; pins are numbered counter-clockwise from top-left corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74HCT153N, SN74HC153NE4 provides lower power and wider voltage flexibility but requires CMOS-level inputs; compared with CD74HC153E, it is functionally identical with no design impact - making SN74HC153NE4 optimal for new industrial designs prioritizing low ICC and 2–6 V operation.

Availability

SN74HC153NE4 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, legacy microcontroller address decoding, and automated test equipment requiring stable component supply across long production lifecycles.

Supply support for SN74HC153NE4 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 specializing in analog, embedded processing, and logic ICs, with over 50 years of innovation in industrial and automotive electronics.

The SN74HC153NE4 belongs to TI's 74HC logic family, designed for high-speed, low-power digital signal routing in industrial control, instrumentation, and legacy-compatible embedded systems.

FAQ

What is the maximum clock/data rate supported by SN74HC153NE4?

The SN74HC153NE4 is not a clocked device but a combinational multiplexer. Its usable data rate depends on propagation delay: with tpd = 32 ns typical at 4.5 V, it supports reliable signal routing up to ~20 MHz for clean, low-skew transitions. For higher rates, layout parasitics and load capacitance must be minimized - SN74HC153NE4 itself imposes no internal clock limit.

Can SN74HC153NE4 operate at 3.3 V supply?

Yes, SN74HC153NE4 is fully specified from 2 V to 6 V, including 3.3 V operation. At VCC = 3.3 V, VIH = 2.31 V min and VIL = 0.99 V max ensure compatibility with standard 3.3-V CMOS outputs; tpd increases to ~45 ns, and output drive reduces to ±4 mA - all within datasheet limits. SN74HC153NE4 remains functional and reliable at 3.3 V.

Does SN74HC153NE4 require external pull-up or pull-down resistors on unused inputs?

Yes - all unused inputs of SN74HC153NE4 must be terminated to VCC or GND per TI's SCBA004 guideline. Floating CMOS inputs cause increased ICC, noise susceptibility, and potential oscillation. For example, unused address lines (A/B) or data inputs (C0–C3) should be tied to GND or VCC depending on desired default selection state. This requirement applies directly to SN74HC153NE4 in any configuration.

How does the strobe (G) input affect SN74HC153NE4 output behavior?

The strobe input (G) on each channel of SN74HC153NE4 is active-high and overrides address decoding: when G = HIGH, the corresponding Y output is forced LOW regardless of A/B or C0–C3 states. When G = LOW, normal 4:1 selection resumes. This enables hardware-gated signal routing and cascading - a key feature distinguishing SN74HC153NE4 from basic mux ICs.

Is SN74HC153NE4 RoHS compliant and lead-free?

Yes, SN74HC153NE4 is RoHS compliant with lead-free terminal finish (NIPDAU), as confirmed in TI's Package Option Addendum. It meets JEDEC J-STD-020 moisture sensitivity Level-1 (unlimited floor life at <30°C/60% RH) and is rated for industrial temperature range (−40°C to +85°C). All SN74HC153NE4 units supplied by Aetrix Electronics carry full RoHS documentation traceability.