NXP Semiconductors HEF4075BT,653

Overview

HEF4075BT,653 from NXP Semiconductors (formerly Philips) is a triple 3-input OR gate IC in the HE4000B LOCMOS logic family, operating at supply voltages of 5 V, 10 V, or 15 V, with propagation delays as low as 12 ns at 15 V and 50 pF load, fully buffered outputs for high noise immunity, and designed for digital control and combinational logic in industrial timing and interface circuits.

For engineers reviewing the HEF4075BT,653 datasheet, HEF4075BT,653 pinout, HEF4075BT,653 application, or HEF4075BT,653 equivalent, key selection considerations include supply voltage range compatibility, output drive capability under capacitive load, propagation delay vs. VDD scaling, and SO14 package thermal and layout constraints in space-constrained PCBs.

Technical Context

The HEF4075BT,653 implements three independent positive-logic 3-input OR gates using LOCMOS (Low-power CMOS) process technology, ensuring static power consumption near zero and dynamic dissipation governed by input/output switching frequency and load capacitance. Each gate features fully buffered outputs to maintain consistent impedance regardless of internal signal patterns.

Propagation delay varies predictably with supply voltage and load: tPLH/tPHL scale from 12–25 ns at 15 V/50 pF to 30–65 ns at 5 V/50 pF, and output transition times follow linear CL-dependent formulas (e.g., tTLH = 6 ns + 0.28 ns/pF × CL at 15 V), enabling precise timing budgeting in synchronous logic designs.

Key Specifications

Pinout & Package

HEF4075BT,653 is housed in a 14-lead small-outline (SO) plastic package (SOT108-1), compliant with JEDEC MS-012, with 1.27 mm pitch, gull-wing leads, and standard SO14 footprint.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar triple 3-input OR gate applications.

Compared with CD4075BM96 and 74HC1OR3, the HEF4075BT,653 uniquely balances wide VDD flexibility (3–15 V), robust noise immunity via full buffering, and predictable CL-dependent timing-making it optimal for mixed-rail industrial upgrades and long-lifecycle maintenance programs.

Availability

HEF4075BT,653 is available at Aetrix Electronics and suitable for industrial control logic, legacy system interface, and power sequencing monitor applications requiring stable component supply, long-term obsolescence mitigation, and guaranteed SO14 packaging consistency.

Supply support for HEF4075BT,653 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

NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions, automotive MCUs, and legacy logic families inherited from Philips Semiconductors.

The HE4000B LOCMOS logic family-including HEF4075BT,653-was engineered for industrial and automotive applications demanding wide supply voltage tolerance, high noise immunity, and long-term reliability in harsh environments.

FAQ

What is the maximum supply voltage rating for HEF4075BT,653?

The HEF4075BT,653 supports a maximum supply voltage of 15 V DC, with absolute maximum ratings defined per Philips HE4000B Family Specifications. Operation above 15 V risks permanent damage. The device functions reliably across 3 V to 15 V, making HEF4075BT,653 suitable for multi-rail systems without external regulators.

Does HEF4075BT,653 support 3.3 V logic inputs?

Yes, HEF4075BT,653 accepts 3.3 V logic inputs when operated at VDD ≥ 4.5 V, as its input threshold is approximately 0.5 × VDD. At 5 V supply, VIH(min) = 3.5 V and VIL(max) = 1.5 V - fully compatible with 3.3 V CMOS outputs. HEF4075BT,653 does not support 3.3 V VDD operation below 3 V.

Is HEF4075BT,653 pin-compatible with other HE4000B-series SO14 logic devices?

Yes, HEF4075BT,653 uses the standard SO14 pinout defined in SOT108-1 and matches the pin mapping of other HE4000B SO-packaged logic (e.g., HEF4001BT, HEF4011BT). Inputs and outputs are arranged identically across the family, enabling layout reuse and simplified BOM rationalization for HEF4075BT,653 and related parts.

What is the typical quiescent current of HEF4075BT,653 at 15 V?

The typical quiescent supply current (IDD) for HEF4075BT,653 is less than 1 µA at 25 °C and 15 V, per HE4000B Family Specifications. This ultra-low static power enables use in battery-backed or energy-sensitive systems where leakage must be minimized - a defining trait of the HEF4075BT,653 LOCMOS implementation.

Can HEF4075BT,653 drive a 50 pF capacitive load reliably at 10 MHz?

Yes, HEF4075BT,653 can drive a 50 pF load at 10 MHz toggle rate with verified timing margins: at 15 V, tPLH/tPHL ≤ 25 ns and output transition time ≤ 40 ns, yielding >20 ns setup/hold margin per cycle. Dynamic power remains manageable (~12 mW), confirming HEF4075BT,653 suitability for sustained high-frequency combinational logic paths.