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HWD803 Datasheet 3-pin Microprocessor Reset Circuits

Manufacturer: Chengdu Sino Microelectronics System

Overview: 3-Pin Microprocessor Reset Circuits General.

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 ponents 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.

Key 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-.

More Datasheets from Chengdu Sino Microelectronics System

Part Number Description
HWD809 3-pin microprocessor power monitoring
HWD809 3-Pin Microprocessor Reset Circuits
HWD810 3-Pin Microprocessor Reset Circuits
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HWD4863 Dual 2.2W Audio Amplifier

HWD803 Distributor