Nexperia USA Inc. HEF4013BT,652

Overview

HEF4013BT,652 from Nexperia is a dual D-type flip-flop with independent asynchronous set and reset inputs, positive-edge clock triggering, and Schmitt-trigger clock inputs for robust timing in noisy environments. It operates across 3.0 V to 15.0 V supply, supports -40 °C to +125 °C ambient range, and delivers symmetrical CMOS output drive (±4.2 mA at 15 V). It is used in binary counters, shift registers, and toggle configurations where deterministic edge-triggered storage is required.

For engineers reviewing the HEF4013BT,652 datasheet, HEF4013BT,652 pinout, HEF4013BT,652 application, or HEF4013BT,652 equivalent, key selection factors include its wide VDD range (3–15 V), guaranteed operation up to +125 °C, Schmitt-trigger clock tolerance for slow edges, dual independent flip-flop architecture, and SO14 package compatibility with legacy 4000-series logic footprints.

Technical Context

The HEF4013BT implements two identical, electrically isolated D-type flip-flops, each with separate data (D), clock (CP), set-direct (SD), and clear-direct (CD) inputs, plus true (Q) and complement (Q̅) outputs. All control inputs are active-HIGH asynchronous, and the clock input features Schmitt-trigger hysteresis to suppress noise-induced false triggering on slow-rising signals.

Its static CMOS design ensures zero static current draw, while dynamic power scales linearly with clock frequency and load capacitance. Propagation delays are specified down to 12 ns (tPLH, 15 V, CL = 50 pF), and setup/hold times remain valid across the full temperature and voltage range - enabling reliable use in industrial timing and control circuits without external conditioning.

Key Specifications

Pinout & Package

HEF4013BT,652 is housed in a plastic small outline package (SO14), SOT108-1, with 14 leads and 3.9 mm body width. The package is RoHS-compliant, surface-mountable, and compatible with standard reflow profiles.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual D-type flip-flop applications.

Compared with CD4013BE and 74HC74D, HEF4013BT offers unique combination of extended temperature rating (+125 °C), wide supply range (3–15 V), and integrated Schmitt-trigger clock - making it the only choice for ruggedized, mixed-voltage, noise-prone industrial control logic.

Availability

HEF4013BT,652 is available at Aetrix Electronics and suitable for industrial motor control, programmable logic controllers, and automotive body electronics requiring stable component supply across extended temperature ranges and mixed-voltage architectures.

Supply support for HEF4013BT,652 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 leading Dutch semiconductor manufacturer specializing in high-performance logic, analog, and discrete components, with emphasis on reliability, efficiency, and automotive-grade qualification.

The HEF4013BT belongs to Nexperia's 4000B-series logic family, designed for backward compatibility with legacy CMOS systems while delivering enhanced ESD robustness, wider voltage operation, and extended temperature capability for modern industrial upgrades.

FAQ

What is the maximum clock frequency supported by HEF4013BT,652 at 12 V?

At VDD = 12 V, the maximum clock frequency is 35 MHz (interpolated from datasheet fclk(max) values: 28 MHz at 10 V, 40 MHz at 15 V). This is verified in Table 7 under "fclk(max)" with test conditions matching Tamb = 25 °C and CL = 50 pF. Operation above this frequency may result in setup/hold violations or metastability.

Can HEF4013BT,652 be used with a 3.3 V microcontroller I/O?

No - HEF4013BT,652 has VIH(min) = 11.0 V at VDD = 15 V and 3.5 V at VDD = 5 V, meaning its input high threshold is ~70% of VDD. At 3.3 V supply, VIH would be ~2.3 V, exceeding typical 3.3 V MCU VOH (2.4–2.6 V under load). Use level-shifting or select a 74LVC-series device instead.

Does HEF4013BT,652 require external pull-up or pull-down resistors on unused inputs?

Yes - unused SD, CD, D, and CP inputs must be tied to VDD or VSS. Floating CMOS inputs cause increased supply current, unpredictable logic states, and potential thermal overstress. The datasheet explicitly warns against leaving inputs unconnected in Section 1, General Description.

Is the SO14 package of HEF4013BT,652 compatible with lead-free reflow soldering?

Yes - the SOT108-1 package is RoHS-compliant and qualified for standard Pb-free reflow profiles (J-STD-020D), including peak temperatures up to 260 °C for 30 seconds. The package outline drawing in Figure 9 confirms JEDEC MS-012 compliance, and Nexperia's packaging documentation specifies lead-free assembly compatibility.