HEF4528BP,652

Multivibrators Overview

The HEF4528BP,652 is a dual retriggerable-resetable monostable multivibrator manufactured by NXP USA Inc. It operates within a supply voltage range of 3 V to 15 V and supports an ambient temperature range from -40 °C to +85 °C. The device features two independent circuits, each with active LOW input (nA), active HIGH input (nB), and active LOW clear direct input (nCD). Outputs include nQ and its complement nQ. Propagation delays vary by supply voltage: at 5 V, tPHL is up to 140 ns and tPLH up to 305 ns; at 10 V, tPHL is up to 50 ns and tPLH up to 115 ns; at 15 V, tPHL is up to 35 ns and tPLH up to 80 ns.

Multivibrators Feature Summary

• Dual retriggerable and resetable monostable multivibrator architecture
• Wide supply voltage operation from 3.0 V to 15.0 V
• High noise immunity and CMOS low power dissipation
• ESD protection exceeding 2000 V (HBM) and 1000 V (CDM)

Multivibrators Applications

• Non-retriggerable monostable multivibrator configurations
• Rising edge triggered pulse generation
• Falling edge triggered pulse generation

Multivibrators Procurement Notes

Verify the package type matches the required design constraints, as the datasheet primarily details the SO16 plastic small outline package (SOT109-1). Confirm that the specific ordering suffix corresponds to the desired packaging format for the manufacturing process. Ensure compatibility with the specified operating temperature range and supply voltage requirements before finalizing component selection.

Multivibrators Selection Notes

Select this component when a dual-channel timing solution is required with flexible triggering options. The device accommodates both positive-going transitions on input B and negative-going transitions on input A. Designers must account for external timing components REXT and CEXT to set the output pulse width according to the manufacturer's formulas. Verify that the load capacitance does not exceed limits affecting propagation delay specifications.

Multivibrators Part Context

The HEF4528B belongs to the HEF4000 series of CMOS logic devices. This family is characterized by static operation and standardized symmetrical output characteristics. The product complies with JEDEC standard JESD 13-B. The datasheet revision history indicates updates to ESD specifications and package outline drawings in recent versions.

Multivibrators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.