Nexperia USA Inc. 74HC154PW,118

Overview

74HC154PW,118 from Nexperia is a 4-to-16 line decoder/demultiplexer in TSSOP24 package, decoding four binary address inputs (A0–A3) into sixteen active-LOW mutually exclusive outputs (Y0–Y15), with dual active-LOW enable inputs (E0, E1). It operates from 2.0 V to 6.0 V, supports -40 °C to +125 °C ambient range, and delivers 13 ns typical propagation delay at 4.5 V - used in memory address selection, I/O port expansion, and LED matrix row/column control.

For engineers reviewing the 74HC154PW,118 datasheet, 74HC154PW,118 pinout, 74HC154PW,118 application, or 74HC154PW,118 equivalent, this device is selected for high-density logic decoding where CMOS-level input compatibility, low static current (≤160 μA at 125 °C), and precise 16-output mutual exclusivity are required in space-constrained PCB layouts.

Technical Context

The 74HC154PW,118 implements a combinational binary decoder with two cascaded enable paths: both E0 and E1 must be LOW for any output to go LOW; a HIGH on either forces all outputs HIGH. Its internal logic directly maps A0–A3 to Y0–Y15 using standard NAND-based decoding architecture, with no latching or clocking - output state changes asynchronously with input transitions.

Input clamping diodes allow safe interfacing to voltages exceeding VCC when used with current-limiting resistors. Output drive capability is ±25 mA per pin under recommended conditions, with VOL ≤ 0.33 V at 4.5 V/4.0 mA and VOH ≥ 3.7 V under same load at 125 °C - enabling direct interface to TTL and CMOS loads without level-shifting.

Key Specifications

Pinout & Package

TSSOP24 package (SOT355-1): plastic thin shrink small outline, 24 leads, 4.4 mm body width, 0.65 mm pitch, exposed pad optional (non-electrical).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 4-to-16 decoder applications.

Compared with 74HC154PW,118, the 74HCT154PW,118 offers tighter input threshold guarantees for TTL sources but identical timing and drive; SN74HC154PWR trades compactness for thermal robustness and through-hole rework compatibility - choice depends on signal source family and thermal/mechanical constraints.

Availability

74HC154PW,118 is available at Aetrix Electronics and suitable for memory address decoding, I/O port expansion, LED matrix row control, and industrial PLC input scanning requiring stable component supply across automotive, industrial, and embedded computing programs.

Supply support for 74HC154PW,118 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

Nexperia is a global semiconductor expert delivering high-performance logic, analog, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in mass-market electronics.

The 74HC154 belongs to Nexperia's HC logic family - designed for low-power, high-noise-immunity combinatorial decoding in space- and power-constrained applications from consumer wearables to industrial controllers.

FAQ

Can 74HC154PW,118 operate at 3.3 V supply?

Yes. The 74HC154PW,118 is fully specified from 2.0 V to 6.0 V, including 3.3 V operation. At VCC = 3.3 V, VIH is guaranteed ≥2.1 V and VOL ≤0.26 V at 4 mA load, ensuring robust interface with 3.3 V microcontrollers and FPGAs without level shifters.

What happens if both E0 and E1 are HIGH?

When either E0 or E1 is HIGH, all 16 outputs (Y0–Y15) are forced HIGH regardless of A0–A3 states. This is a hard disable condition - no output can go LOW, providing fail-safe deactivation in safety-critical sequencing circuits.

Is the TSSOP24 package lead-free and RoHS compliant?

Yes. The 74HC154PW,118 (SOT355-1) is manufactured with lead-free terminations and complies with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, with full material declarations available upon request.

How does input clamping diode functionality affect external resistor sizing?

Clamping diodes allow safe interface to voltages up to VCC + 0.5 V. For overvoltage protection, use series current-limiting resistors sized so that |VI − VCC|/R ≤ 20 mA (max clamp current). At 5 V VCC and 12 V input, R ≥ 350 Ω ensures diode current stays within spec.