FT7521FHX

Supervisors Overview

The FT7521FHX is a reset timer integrated circuit manufactured by onsemi, designed to provide fixed delay and reset pulse generation. It operates within a supply voltage range of 1.6 V to 5.5 V and features an open-drain or open-collector output. The device is housed in a compact 6-MicroPak2 package, suitable for space-constrained applications requiring reliable system supervision.

Supervisors Feature Summary

• Generates a fixed delay time before asserting the reset signal
• Provides a defined reset pulse width to ensure stable system initialization
• Features an open-drain/open-collector output for flexible interfacing

Supervisors Applications

• Embedded systems requiring supervised power-up sequences
• Microcontroller unit (MCU) reset circuits
• Industrial control boards needing reliable startup timing

Supervisors Procurement Notes

Verify the specific suffix FHX against the official datasheet to confirm pinout and electrical characteristics. Check current product status as some variants may be obsolete. Ensure compatibility with your system's voltage levels and load requirements before finalizing procurement.

Supervisors Selection Notes

Select this component when a fixed delay reset function is required without programmable timing adjustments. Consider the 6-MicroPak2 package size for PCB layout constraints. Verify that the open-drain output capability matches the pull-up requirements of your target logic family.

Supervisors Part Context

The FT7521 belongs to onsemi’s supervisor and reset timer product line. It serves as a dedicated solution for managing system resets during power transitions. The FHX variant specifies the particular packaging and configuration details distinct from other suffixes in the FT7521 family.

Supervisors Replacement Considerations

Check for direct pin-to-pin replacements within the FT7521 series with different suffixes. Evaluate generic reset timers with similar fixed delay specifications if exact matches are unavailable. Ensure voltage ranges and output types remain compatible.