Nexperia USA Inc. HEF4077BT,653

Overview

HEF4077BT,653 from Nexperia is a quad 2-input EXCLUSIVE-NOR gate in SO14 package, operating across 3.0 V to 15.0 V supply, with symmetrical CMOS output drive, -40 °C to +85 °C temperature range, and input clamp diodes enabling overvoltage-tolerant interfacing. It performs logic equality detection in digital control, address decoding, and bus arbitration circuits.

For engineers reviewing the HEF4077BT,653 datasheet, HEF4077BT,653 pinout, HEF4077BT,653 application, or HEF4077BT,653 equivalent, key selection factors include supply voltage flexibility (3–15 V), propagation delay vs. load capacitance (e.g., 30 ns typ. at 15 V/50 pF), static operation, and JEDEC JESD13-B compliance for industrial logic interfacing.

Technical Context

The HEF4077BT,653 implements four independent 2-input XNOR gates using standard CMOS process technology, supporting fully static operation with no minimum clock or refresh requirement. Each gate exhibits identical HIGH/LOW output voltage thresholds (VIH = 11.0 V min at VDD = 15 V; VIL = 4.0 V max) and rail-to-rail output swing capability.

Input clamping diodes allow safe interface to signals exceeding VDD when used with current-limiting resistors - a critical feature for mixed-voltage system interconnects. Propagation delays scale predictably with supply voltage and load capacitance (e.g., tPHL = 22 ns + 0.16 ns/pF × CL at VDD = 15 V), enabling accurate timing budgeting in synchronous logic designs.

Key Specifications

Pinout & Package

HEF4077BT,653 is housed in a plastic small outline package (SO14), SOT108-1 variant, with 14 leads, 3.9 mm body width, and 1.27 mm lead pitch. The package is RoHS-compliant and rated for reflow soldering per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad XNOR gate applications.

Compared with CD4077BE and 74HC09N, the HEF4077BT,653 uniquely combines wide-voltage operation, integrated input clamping, and guaranteed XNOR functionality in surface-mount SO14 - making it the sole drop-in solution for industrial mixed-voltage equality checking where reliability and pin compatibility are mandatory.

Availability

HEF4077BT,653 is available at Aetrix Electronics and suitable for industrial control logic, address decoding, bus arbitration, and digital test equipment requiring stable component supply across extended temperature and voltage ranges.

Supply support for HEF4077BT,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 delivering high-performance logic, analog, and MOSFET solutions with focus on efficiency, reliability, and sustainability.

The HEF4077BT,653 belongs to Nexperia's legacy 4000B-series CMOS logic family, engineered for robust industrial interfacing where wide supply range, static operation, and overvoltage tolerance are essential design requirements.

FAQ

Can HEF4077BT,653 operate reliably at 3.3 V?

No - the HEF4077BT,653 is not characterized or guaranteed for operation at 3.3 V. Its minimum rated supply is 3.0 V, but static characteristics (e.g., VIH = 3.5 V min at VDD = 5 V) and propagation delay extrapolation formulas assume ≥5 V operation. At 3.3 V, output drive and noise margins degrade significantly and are outside specification.

What is the maximum capacitive load for stable 15 V operation?

The HEF4077BT,653 supports up to 50 pF load capacitance at 15 V while maintaining tPHL ≤ 55 ns (max) and tPLH ≤ 50 ns (max). Exceeding 50 pF increases propagation delay nonlinearly (tPHL = 22 ns + 0.16 ns/pF × CL) and may cause marginal timing in high-speed synchronous designs.

Does HEF4077BT,653 support hot-swap or live-insertion?

No - the device lacks built-in hot-swap protection circuitry. While input clamp diodes tolerate brief overvoltage transients, applying VDD before establishing solid VSS connection or sequencing inputs before supply stabilization can exceed absolute maximum ratings (e.g., VI < −0.5 V or > VDD + 0.5 V), risking latch-up or permanent damage.

How does input leakage current vary with temperature and supply?

At 15 V and 25 °C, II is ±0.3 μA (max); at 85 °C, it rises to ±3.0 μA (max). At lower VDD (5 V), leakage is ≤7.5 μA (max) at 85 °C. This variation is critical for high-impedance bias networks - e.g., pull-up resistors >1 MΩ may develop unintended offset at elevated temperature.