Renesas 74HC158P-E

Overview

74HC158P-E from Renesas Electronics is a quad 2-to-1-line data selector/multiplexer with inverted outputs, designed for digital signal routing in logic control and data path management circuits. It operates across 2–6 V supply, delivers 12 ns typical propagation delay (CL = 50 pF), supports ±25 mA output current, and functions over –40°C to +85°C. It is used in industrial control panels requiring reliable, low-power signal selection.

For engineers reviewing the 74HC158P-E datasheet, 74HC158P-E pinout, 74HC158P-E application, or 74HC158P-E equivalent, key selection criteria include its inverted-output behavior versus HD74HC157, strobe-enabled enable/disable control, common select input architecture, and DIP-16 package compatibility with legacy through-hole PCB layouts.

Technical Context

The 74HC158P-E implements four independent 2-input multiplexers sharing one Select input and one Strobe (enable) input. When Strobe is low, selected inputs (A or B per channel) pass to outputs with inversion; when Strobe is high, all outputs force high. Internal decoding eliminates need for external logic to route the Select signal.

Its CMOS HCMOS design ensures compatibility with both HC and HCT families, supports fanout of 10 LSTTL loads, and maintains rail-to-rail output swing across full VCC range (2–6 V). Quiescent ICC remains ≤4 µA at 25°C, enabling use in battery-backed or low-power monitoring subsystems.

Key Specifications

Pinout & Package

Dual In-line Package (DIP-16), 7.62 mm pitch, 19.2 mm × 6.3 mm body, through-hole mount. RoHS-compliant Ni/Pd/Au plating.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad 2-to-1 multiplexer applications.

Compared with 74HC158P-E, SN74HC158N offers near-identical performance with minor propagation delay variance, while 74HCT158N trades lower static power for guaranteed TTL input compatibility-making it preferable in mixed-logic-voltage systems where HC-level thresholds risk marginal switching.

Availability

74HC158P-E is available at Aetrix Electronics and suitable for industrial control systems, test equipment signal routing, and legacy logic replacement requiring stable component supply, long-term lifecycle support, and RoHS-compliant through-hole packaging.

Supply support for 74HC158P-E 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

Renesas Electronics Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and logic solutions for industrial, automotive, and infrastructure markets.

The HD74HC158 product line delivers standardized high-speed CMOS logic building blocks optimized for robustness, low power, and broad voltage operation in industrial control and instrumentation applications.

FAQ

What is the logic function of the 74HC158P-E?

The 74HC158P-E is a quad 2-to-1-line data selector/multiplexer with inverted outputs. Each of its four channels routes either the A or B input to the corresponding Y output based on the Select pin state, but the output is logically inverted. The Strobe pin enables or disables all outputs simultaneously: when Strobe is low, the selected inputs pass (inverted); when high, all Y outputs go high. This matches the function table defined in Renesas document REJ03D0578-0200.

Does the 74HC158P-E support 3.3 V operation?

Yes, the 74HC158P-E supports 3.3 V operation fully. Its specified supply voltage range is 2 V to 6 V, and all electrical characteristics-including VIH/VIL thresholds, propagation delay, and output drive-are guaranteed across this range. At VCC = 3.3 V, VIH is 2.31 V min and VIL is 1.09 V max, providing adequate noise margin for standard 3.3 V CMOS interfaces. This is confirmed in the Recommended Operating Conditions table of the HD74HC157/HD74HC158 datasheet Rev.2.00.

Is the 74HC158P-E pin-compatible with the 74HC157P-E?

Yes, the 74HC158P-E is pin-compatible with the 74HC157P-E: both use the same DIP-16 package (PRDP0016AE-B), share identical pin assignments for VCC, GND, Select, Strobe, all A/B inputs, and Y outputs. The sole functional difference is output polarity-74HC157P-E provides noninverted outputs, while 74HC158P-E provides inverted outputs. No PCB layout change is needed when substituting between them, provided system logic accounts for the inversion.

What is the maximum output current rating for the 74HC158P-E?

The 74HC158P-E has a maximum output current rating of ±25 mA per output pin, as specified in the Absolute Maximum Ratings table. This applies to both sourcing (IOH) and sinking (IOL) conditions. However, for reliable operation within recommended limits, the datasheet specifies that IOH = –4 mA and IOL = 4 mA are used for VOH/VOL testing-indicating that sustained ±25 mA should be reserved for short-duration pulses or derated per thermal constraints. Total package power dissipation must remain ≤500 mW.

How does the Strobe input affect output behavior in the 74HC158P-E?

In the 74HC158P-E, the Strobe input acts as an active-low enable. When Strobe is low, the multiplexer functions normally: the Select input determines whether A or B is routed to each Y output, and the result is inverted. When Strobe is high, all four Y outputs are forced high regardless of Select or input states. This behavior is explicitly defined in the Function Table on page 2 of the HD74HC157/HD74HC158 datasheet Rev.2.00 and enables global output disable without external gating logic.