NXP Semiconductors HEF4072BT,653

Overview

HEF4072BT,653 from NXP Semiconductors (formerly Philips) is a dual 4-input OR gate IC in the HE4000B LOCMOS logic family, operating at 5–15 V supply, with propagation delays as low as 17 ns at 15 V and 50 pF load, fully buffered outputs for noise immunity, and SO14 plastic package. It performs positive-logic OR functions in digital control logic, bus arbitration, and enable gating circuits.

For engineers reviewing the HEF4072BT,653 datasheet, HEF4072BT,653 pinout, HEF4072BT,653 application, or HEF4072BT,653 equivalent, key selection criteria include supply voltage range (5–15 V), dual-gate 4-input OR topology, SO14 package compatibility, propagation delay vs. load capacitance dependency, and LOCMOS family DC/AC specifications per IC04 documentation.

Technical Context

The HEF4072BT,653 implements two independent 4-input OR gates using LOCMOS (Low-power CMOS) technology, ensuring rail-to-rail output swing and high noise margin. Each gate accepts four inputs and delivers one fully buffered output with symmetrical HIGH-to-LOW and LOW-to-HIGH propagation delays.

Its AC performance is specified at Tamb = 25 °C with CL = 50 pF and input transition times ≤20 ns; delay values scale linearly with load capacitance per published formulas (e.g., tPLH = 17 ns + 0.16 ns/pF × CL at VDD = 15 V), enabling accurate timing budgeting in synchronous logic designs.

Key Specifications

Pinout & Package

HEF4072BT,653 is housed in a 14-lead small-outline (SO) plastic package (SOT108-1), with standard dual-in-line pin spacing (1.27 mm pitch) and gull-wing leads for surface-mount assembly.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual 4-input OR gate applications.

Compared with CD4072BM96 and 74HC32DR, the HEF4072BT,653 uniquely balances wide supply range (5–15 V), LOCMOS noise robustness, and predictable delay-load linearity-making it optimal for legacy industrial controls where voltage flexibility and deterministic timing outweigh raw speed.

Availability

HEF4072BT,653 is available at Aetrix Electronics and suitable for industrial control panels, automotive body electronics, and legacy instrumentation systems requiring stable component supply over extended production lifecycles.

Supply support for HEF4072BT,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 focused on secure connectivity solutions for automotive, industrial, and IoT applications, with roots in Philips' pioneering IC development.

The HE4000B LOCMOS logic family-including HEF4072BT,653-was engineered for high-noise industrial environments requiring wide-voltage operation, low static power, and predictable AC timing without complex biasing.

FAQ

What logic family does the HEF4072BT,653 belong to, and how does it differ from standard 4000-series CMOS?

The HEF4072BT,653 belongs to the HE4000B LOCMOS family developed by Philips (now NXP). Unlike standard 4000-series CMOS, LOCMOS offers lower dynamic power consumption, tighter propagation delay specifications, and improved noise immunity due to fully buffered outputs. The HEF4072BT,653 maintains full 5–15 V operation while delivering more consistent timing behavior across temperature and load variations than generic 4000B variants.

Does the HEF4072BT,653 support 3.3 V operation?

No, the HEF4072BT,653 is not characterized or guaranteed for 3.3 V operation. Its absolute minimum supply voltage is 5 V per the January 1995 datasheet, and DC/AC parameters (e.g., VIH/VIL thresholds, propagation delay) are only specified across 5–15 V. For 3.3 V systems, consider 74LVC32 or 74AUP1G32 alternatives instead of the HEF4072BT,653.

What is the maximum capacitive load the HEF4072BT,653 can drive reliably?

The HEF4072BT,653 is characterized up to 50 pF in the official datasheet, with propagation and transition times extrapolated linearly beyond that (e.g., tPLH = 17 ns + 0.16 ns/pF × CL at 15 V). While it can physically drive >100 pF, timing margins degrade predictably-designers should verify setup/hold timing in their specific layout. The HEF4072BT,653 is not rated for transmission-line driving or heavy bus loading without external buffering.

Are pins 11–13 on the HEF4072BT,653 internally connected?

No, pins 11, 12, and 13 on the HEF4072BT,653 are not internally connected (NC). The datasheet's pinning diagram and package outline SOT108-1 confirm these terminals have no die bond wires or circuit connections. They must remain unconnected or tied to VSS only if required for mechanical stability-never to VDD or signal nets-to prevent parasitic coupling or latch-up risk in the HEF4072BT,653.

Can the HEF4072BT,653 replace the HEF4072BP or HEF4072BD in an existing design?

Yes, the HEF4072BT,653 is functionally identical to HEF4072BP (plastic DIP) and HEF4072BD (ceramic DIP) in logic behavior, DC specs, and AC timing-but differs in package (SO14 vs. DIP). Pinout is identical across all three variants. Layout changes are required due to SO vs. through-hole footprint, but no schematic or firmware modifications are needed for the HEF4072BT,653 to operate correctly in those designs.