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Reset ICs

PST87xR

Overview

This IC is a system reset IC builtin delay time circuit.
PST87/88 is not required with an external capacitor, and then can use a small package. The manual reset function can be forcibly reset.

Application

・Reset circuits for microcomputers, CPUs and MPUs
・Reset circuits for logic circuits
・Battery voltage check circuits
・Back-up power supply switching circuits
・Level detection circuits

Features

Low current consumption

Main specifications

Absolute maximum
rating
[V]
Recommended
operating voltage
Min.
[V]
Recommended
operating voltage
Max.
[V]
Detection voltage
Min.
[V]
Detection voltage
Max.
[V]
Detection voltage accuracy
[%]
Consumption current
[μA]
Release delay time Output type Output Logic Separated sense pin Manual reset Circuit structure Operating Ambient Temperature
Min.
[deg.C]
Operating Ambient Temperature
Max.
[deg.C]
Hysteresis voltage
Typ.
[V]
Detect delay time
Typ.
[ms]
Additional function
6.0 1.20 5.50 1.6 4.6 ±1.5 1.00 Fixed CMOS Active L No Yes 1ch Reset -40 85 50mV PST870:20
PST871:50
PST872:100
PST873:200
Manual reset (PST87xR/PST88xR)
Absolute maximum
rating
[V]
Recommended
operating voltage
Min.
[V]
Recommended
operating voltage
Max.
[V]
Detection voltage
Min.
[V]
Detection voltage
Max.
[V]
Detection voltage accuracy
[%]
Consumption current
[μA]
6.0 1.20 5.50 1.6 4.6 ±1.5 1.00
Release delay time Output type Output Logic Separated sense pin Manual reset Circuit structure
Fixed CMOS Active L No Yes 1ch Reset
Operating Ambient Temperature
Min.
[deg.C]
Operating Ambient Temperature
Max.
[deg.C]
Hysteresis voltage
Typ.
[V]
Detect delay time
Typ.
[ms]
-40 85 50mV PST870:20
PST871:50
PST872:100
PST873:200
Additional function
Manual reset (PST87xR/PST88xR)

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Associated Data

Engineering Information

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