HEF4528BT/AUJ

Multivibrators Overview

The HEF4528BT is a dual retriggerable-resettable monostable multivibrator from the 4000/14000/40000 series, manufactured by Nexperia. It operates within a supply voltage range of 3 V to 15 V and supports an ambient temperature range of -40 °C to +85 °C. The device features two independent channels, each with active LOW (nA) and active HIGH (nB) inputs, an active LOW clear input (nCD), and complementary outputs (nQ and nQ). Pulse duration is determined by external timing components connected to pins nREXT/CEXT and nCEXT.

Multivibrators Feature Summary

• Fully static operation with CMOS low power dissipation
• Wide supply voltage range from 3.0 V to 15.0 V
• High noise immunity and standardized symmetrical output characteristics
• ESD protection exceeding 2000 V (HBM) and 1000 V (CDM)

Multivibrators Applications

• Non-retriggerable monostable multivibrator circuits
• Timing pulse generation using external RC networks
• Signal conditioning for edge-triggered transitions

Multivibrators Procurement Notes

Verify that the ordering suffix matches the required package type, specifically SOT109-1 for the SO16 plastic small outline package. Confirm the temperature grade corresponds to the specified -40 °C to +85 °C operating range. Ensure compliance with JEDEC standard JESD 13-B and relevant RoHS directives before finalizing procurement specifications.

Multivibrators Selection Notes

Select this component when a dual-channel monostable function is required with wide voltage flexibility. The device accommodates both rising and falling edge triggering through dedicated inputs. Designers must account for external timing resistor and capacitor values to achieve desired pulse widths, noting that propagation delays vary with load capacitance and supply voltage levels.

Multivibrators Part Context

This part belongs to the HEF4528B family of dual monostable multivibrators. It is distributed under the Nexperia brand and utilizes a 16-lead plastic small outline package. The device implements standard CMOS logic functions compatible with the 4000 series ecosystem, providing resettable and retriggerable capabilities for digital timing applications.

Multivibrators Replacement Considerations

HEF4528BP