NXP Semiconductors 74HC154N,652

Overview

74HC154N,652 from Nexperia is a 4-to-16 line decoder/demultiplexer in a 24-pin DIP package (SOT101-1), operating from 2.0 V to 6.0 V supply, with active-LOW outputs, dual active-LOW enable inputs (E0, E1), and CMOS-level input compatibility. It decodes four binary address inputs (A0–A3) into sixteen mutually exclusive outputs (Y0–Y15) for memory addressing and I/O expansion in industrial control logic.

For engineers reviewing the 74HC154N,652 datasheet, 74HC154N,652 pinout, 74HC154N,652 application, or 74HC154N,652 equivalent, key selection criteria include its 2.0–6.0 V wide supply range, -40 °C to +125 °C temperature rating, 16-line demultiplexing capability, active-LOW output polarity, and compatibility with standard TTL/CMOS logic families in legacy through-hole designs.

Technical Context

The 74HC154N,652 implements combinational logic decoding using standard CMOS gate architecture, where address inputs A0–A3 select exactly one of sixteen outputs based on binary encoding, while both enables E0 and E1 must be LOW for valid decoding. Its output stage drives active-LOW signals capable of sinking up to 25 mA per pin under recommended conditions.

Input clamp diodes allow safe interfacing to voltages exceeding VCC when used with current-limiting resistors, and the device complies with JESD7A (2.0–6.0 V) and JEDEC ESD standards (HBM >2000 V, CDM >1000 V), supporting robust operation in noisy industrial environments.

Key Specifications

Pinout & Package

74HC154N,652 uses a 24-pin plastic dual in-line package (DIP), SOT101-1, with 0.3-inch body width and through-hole mounting. Pin 1 is index-marked; pin 12 is GND; pin 24 is VCC.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HCT154N,652, the 74HC154N,652 offers lower static power and wider supply range but requires stronger HIGH-level drive; versus SN74LS154N, it delivers superior speed-power tradeoff and temperature resilience at the cost of TTL input compatibility.

Availability

74HC154N,652 is available at Aetrix Electronics and suitable for memory address decoding, I/O port expansion, industrial control logic, and legacy system interface applications requiring stable component supply and long-term obsolescence management.

Supply support for 74HC154N,652 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, reliable, and efficient logic, analog, and discrete components for automotive, industrial, computing, and consumer markets.

The 74HC154N,652 belongs to Nexperia's HC logic family, designed for low-power, high-noise-immunity digital interfacing in industrial and embedded systems where wide supply range and extended temperature operation are essential.

FAQ

What is the maximum supply voltage rating for the 74HC154N,652?

The 74HC154N,652 has an absolute maximum supply voltage (VCC) of +7.0 V, but its recommended operating range is 2.0 V to 6.0 V. Operating continuously above 6.0 V risks exceeding safe power dissipation limits and may degrade long-term reliability. The 74HC154N,652 is rated for full functionality across this 2.0–6.0 V window, including guaranteed timing and logic thresholds.

Does the 74HC154N,652 support demultiplexing functionality?

Yes, the 74HC154N,652 supports 1-to-16 demultiplexing by using one enable input (e.g., E1) as the data input and the other (E0) as the active-LOW strobe. When E0 is LOW, the selected output Yn follows the logic state of E1. This mode is explicitly defined in the functional description and application figures of the Nexperia datasheet for 74HC154N,652.

What is the output polarity of the 74HC154N,652?

The 74HC154N,652 features active-LOW outputs (Y0–Y15). Each output drives LOW when selected and remains HIGH otherwise. This is confirmed in Table 2 (Pin Description) and the Function Table (Table 3), where all asserted outputs are marked "L" (LOW). External pull-up resistors are required to establish a defined HIGH state when outputs are inactive.

Can the 74HC154N,652 operate at -40 °C?

Yes, the 74HC154N,652 is fully specified and tested from -40 °C to +125 °C, as stated in the Ordering Information (Table 1) and Recommended Operating Conditions (Table 5). All electrical characteristics-including propagation delay, VOL, VOH, and VIH/VIL-are guaranteed across this full industrial temperature range, making it suitable for harsh-environment applications.

Is the 74HC154N,652 pin-compatible with the 74HCT154N,652?

Yes, the 74HC154N,652 and 74HCT154N,652 share identical pinout, package (SOT101-1), and functional block diagram. The only difference is input voltage thresholds: 74HC154N,652 uses CMOS-compatible inputs (VIH ≥ 70 % VCC), while 74HCT154N,652 uses TTL-compatible inputs (VIH ≥ 2.0 V). Both are drop-in replacements in the same footprint.