Nexperia USA Inc. HEF4070BT,653

Overview

HEF4070BT,653 from Nexperia is a quad 2-input CMOS EXCLUSIVE-OR gate in SO14 package, operating from 3 V to 15 V supply, with propagation delays as low as 25 ns at 15 V and ±10 mA output drive capability. It features input clamp diodes for overvoltage tolerance, symmetrical output characteristics, and is rated for industrial temperature range (-40 °C to +85 °C). It serves as a logic-level comparator or parity generator in digital control and data integrity circuits.

For engineers reviewing the HEF4070BT,653 datasheet, HEF4070BT,653 pinout, HEF4070BT,653 application, or HEF4070BT,653 equivalent, this page delivers verified functional behavior, validated pin mapping, real-world timing performance across voltage and load conditions, and precise substitution guidance for legacy 4000-series logic design.

Technical Context

The HEF4070BT implements four independent XOR gates using standard CMOS process technology, each with fully static operation and rail-to-rail input voltage tolerance (VSS to VDD). Its inputs include integrated clamp diodes enabling safe interfacing to signals exceeding VDD when used with current-limiting resistors.

Propagation delay is supply-voltage dependent and load-sensitive: tPHL/tPLH range from 25–55 ns at 15 V (CL = 50 pF), scaling predictably via published extrapolation formulas. Output transition time (tt) follows the same CL-dependent model, ensuring predictable timing margins in synchronous logic designs.

Key Specifications

Pinout & Package

HEF4070BT,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. Pin 1 is marked by a notch or dot; pin numbering follows standard counter-clockwise convention starting from top-left corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CD4070BE and 74HC86PW,118, the HEF4070BT,653 uniquely balances wide supply range (3–15 V), built-in overvoltage input tolerance, and industrial temperature qualification - making it optimal for retrofitting legacy 4000B designs or mixed-rail industrial controls where reliability trumps raw speed.

Availability

HEF4070BT,653 is available at Aetrix Electronics and suitable for logical comparators, parity generators, discrete arithmetic units, and programmable signal routing requiring stable component supply across extended temperature and voltage ranges.

Supply support for HEF4070BT,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 specializing in high-performance, high-reliability logic, analog, and discrete components, with roots in NXP's logic division and headquartered in Nijmegen, Netherlands.

The HEF4070BT,653 belongs to Nexperia's 4000B-series logic family, designed specifically to replace legacy CD4070 and HEF4070 variants with enhanced ESD robustness, tighter parametric control, and full industrial temperature validation.

FAQ

What is the maximum supply voltage the HEF4070BT,653 can tolerate continuously?

The HEF4070BT,653 has an absolute maximum VDD rating of +18 V per IEC 60134, but its recommended operating range is 3 V to 15 V. Continuous operation above 15 V risks accelerated aging and violates JEDEC JESD13-B compliance - use only within 3–15 V for guaranteed functionality and lifetime reliability.

Can the HEF4070BT,653 safely interface with 24 V sensor signals?

Yes - its input clamp diodes allow connection to 24 V signals when paired with a series current-limiting resistor (e.g., 2.2 kΩ limits input current to ~6 mA at 24 V), staying within the ±10 mA clamp current rating. This avoids level shifters while maintaining logic integrity.

Does the HEF4070BT,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 states and increased dynamic power consumption. The device lacks internal pull-ups/pull-downs, and leaving inputs unconnected causes undefined logic states and potential oscillation due to noise coupling.

How does propagation delay vary with capacitive load at 10 V supply?

At 10 V, tPHL/tPLH follow the formula 24 ns + (0.23 ns/pF) × CL, ranging from 35 ns (CL = 50 pF) to 75 ns (CL = 150 pF). This linear dependency is confirmed in Table 7 and enables accurate timing budgeting in PCB layouts with known trace capacitance.