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HWD810 - 3-Pin Microprocessor Reset Circuits

Download the HWD810 datasheet PDF (HWD803 included). The manufacturer datasheet provides complete specifications, pinout details, electrical characteristics, and typical applications for 3-pin microprocessor reset circuits.

Description

The HWD803/HWD809/HWD810 are microprocessor (µP) supervisory circuits used to monitor the power supplies in µP and digital systems.

They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V, +3.3V, +3.0V, or +2.5V powered circuits.

Features

  • o Precision Monitoring of +2.5V, +3V, +3.3V, and +5V Power-Supply Voltages o Fully Specified Over Temperature o Available in Three Output Configurations Open-Drain RESET Output (HWD803) Push-Pull RESET Output (HWD809) Push-Pull RESET Output (HWD810) o 140ms min Power-On Reset Pulse Width o 12µA Supply Current o Guaranteed Reset Valid to VCC = +1V o Power Supply Transient Immunity o No External Components o 3-Pin SC70 and SOT23 Packages Ordering Information PART TEMP. RANGE PIN-.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (HWD803-ChengduSinoMicroelectronicsSystem.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number HWD810
Manufacturer Chengdu Sino Microelectronics System
File Size 291.37 KB
Description 3-Pin Microprocessor Reset Circuits
Datasheet download datasheet HWD810 Datasheet

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Full PDF Text Transcription

Click to expand full text
3-Pin Microprocessor Reset Circuits General Description The HWD803/HWD809/HWD810 are microprocessor (µP) supervisory circuits used to monitor the power supplies in µP and digital systems. They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V, +3.3V, +3.0V, or +2.5V powered circuits. These circuits perform a single function: they assert a reset signal whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for at least 140ms after VCC has risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available. The HWD803 has an open-drain output stage, while the HWD809/HWD810 have push-pull outputs.
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