Nexperia USA Inc. HEF4001BT,653

Overview

HEF4001BT,653 from Nexperia is a quad 2-input CMOS NOR gate IC in SO14 package, operating from 3.0 V to 15.0 V supply, with ±10 mA output drive capability, propagation delay as low as 20 ns at 15 V (CL = 50 pF), and rated for -40 °C to +125 °C ambient temperature. It serves as a fundamental logic building block in industrial control sequencers, power-on reset combinatorial logic, and discrete-level signal conditioning circuits.

For engineers reviewing the HEF4001BT,653 datasheet, HEF4001BT,653 pinout, HEF4001BT,653 application, or HEF4001BT,653 equivalent, key selection criteria include supply voltage flexibility (3–15 V), guaranteed output swing (VOH ≥ 14.95 V / VOL ≤ 0.05 V at 15 V), input clamping diodes enabling overvoltage-tolerant interfacing, and JEDEC JESD13-B compliance for industrial-grade reliability.

Technical Context

The HEF4001BT,653 implements four independent 2-input NOR gates using silicon-gate CMOS technology, each with symmetrical push-pull output stages delivering matched rise/fall times and rail-to-rail switching. Its static operation eliminates dynamic power concerns at DC, while input clamp diodes allow safe interfacing to signals exceeding VDD when used with current-limiting resistors.

Propagation delay scales inversely with supply voltage (e.g., 20–40 ns at 15 V, 25–50 ns at 10 V, 60–120 ns at 5 V for CL = 50 pF), and output transition times follow identical voltage-dependent formulas. The device complies with JEDEC JESD13-B and supports full parametric characterization across three standard supply rails: 5 V, 10 V, and 15 V.

Key Specifications

Pinout & Package

HEF4001BT,653 is housed in a plastic small outline package (SO14), designated SOT108-1, with 14 leads, 3.9 mm body width, and 1.27 mm lead pitch. Pin 1 is marked by a notch or dot; the package is RoHS-compliant and halogen-free.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad 2-input NOR gate applications.

Compared with CD4001BE and 74HC02PW,118, the HEF4001BT,653 uniquely balances wide supply flexibility (3–15 V), industrial temperature support (-40 °C to +125 °C), integrated input clamping, and JEDEC-standardized parametrics - making it optimal for mixed-voltage industrial control and automotive ancillary logic where robustness and interoperability are prioritized over raw speed or extreme temperature range.

Availability

HEF4001BT,653 is available at Aetrix Electronics and suitable for industrial motor control sequencers, power management reset networks, and automotive body control logic requiring stable component supply across extended temperature and voltage ranges.

Supply support for HEF4001BT,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

Nexperia is a global semiconductor expert headquartered in Nijmegen, Netherlands, specializing in high-volume, high-reliability logic, analog, and discrete components for industrial, automotive, and consumer markets.

The HEF4001BT,653 belongs to Nexperia's legacy 4000B-series CMOS logic family, designed specifically for robust, wide-supply-voltage digital interfacing in harsh environments where long-term stability and cross-vendor compatibility are essential.

FAQ

Can HEF4001BT,653 operate reliably at 15 V with a 50 pF load?

Yes. At VDD = 15 V and CL = 50 pF, the HEF4001BT,653 delivers tPHL/tPLH ≤ 40 ns and tTHL/tTLH ≤ 40 ns, with VOH ≥ 14.95 V and VOL ≤ 0.05 V under all temperatures from -40 °C to +125 °C. Its 500 mW total power dissipation limit remains well below derated thermal limits in SO14 packaging.

Does HEF4001BT,653 require external pull-up or pull-down resistors on unused inputs?

No. Unused inputs must be tied to VDD or VSS to prevent floating nodes and increased static current. The device does not have internal pull-ups/pull-downs; however, its CMOS inputs draw < ±0.1 μA leakage, so direct connection to supply rails is electrically safe and prevents oscillation or shoot-through.

How does the input clamping diode affect interfacing with a 24 V sensor signal?

The integrated clamp diodes allow safe interface to 24 V signals only when used with an external current-limiting resistor. For VI > VDD + 0.5 V, the diode conducts; with R ≥ 2.2 kΩ at 24 V and VDD = 15 V, peak clamp current stays below ±10 mA absolute maximum, preventing damage and ensuring valid logic interpretation.

Is HEF4001BT,653 qualified for automotive applications?

No. While rated for -40 °C to +125 °C ambient, the HEF4001BT,653 is not AEC-Q100 qualified and lacks automotive-specific stress testing, failure rate reporting, or PPAP documentation. It may be used in non-safety-critical automotive body electronics only with full customer validation and risk acceptance.