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See Technical Specifications

MIC1557YM5-TR

Programmable Timer IC 5MHz SOT-23-5

Manufacturer:

Microchip Technology, Inc
Mfr.Part #:

MIC1557YM5-TR
Datasheet:

MIC1557YM5-TR Datasheet (PDF)
Series:

IttyBitty®
Type:

555 Type, Timer/Oscillator (Single)
Frequency:

5MHz
Voltage - Supply:

2.7V ~ 18V
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MIC1557YM5-TR General Description

The MIC1555 IttyBitty® CMOS RC timer/oscillator and MIC1557 IttyBitty® CMOS RC oscillator are designed to provide rail-to-rail pulses for precise time delay or frequency generation.The devices are similar in function to the industry standard "555", without a frequency control (FC) pin or an opencollector discharge (D) pin. The threshold pin (TH) has precedence over the trigger (TR) input, ensuring that the BiCMOS output is off when TR is high.The MIC1555 may be used as an astable (oscillator) or monostable (one-shot) with separate threshold and trigger inputs. In the one-shot mode, the output pulse width is precisely controlled by an external resistor and a capacitor.Time delays may be accurately controlled from microseconds to hours. In the oscillator mode, the output is used to provide precise feedback, with a minimum of one resistor and one capacitor producing a 50% duty cycle square wave.The MIC1557 is designed for astable (oscillator) operation only, with a chip select/reset (CS) input for low power shutdown. One resistor and one capacitor provide a 50% duty cycle square wave. Other duty-cycle ratios may be produced using two diodes and two resistors. The MIC1555/7 is powered from a +2.7V to +18V supply voltage.The MIC1555/7 is available in the SOT-23-5 5-pin package, and is rated for -40°C to +85°C ambient temperature range.

Key Features

+2.7V to +18V operation
<1µA typical shutdown mode (MIC1557)
200µA typical (TRG and THR low) at 3V supply
Timing from microseconds to hours
"Zero" leakage trigger and threshold inputs
50% square wave with one Resistor, one Capacitor
Threshold input precedence over trigger input
<15O output on resistance
No output cross-conduction current spikes
<0.005%/°C temperature stability
<0.055%/V supply stability
Small SOT-23-5 surface mount package

Application

Clock & Timing, LED Lighting, Power Management

Specifications

Category	Integrated Circuits (ICs)Clock/TimingProgrammable Timers and Oscillators	Series	IttyBitty®
Type	555 Type, Timer/Oscillator (Single)	Count	-
Frequency	5MHz	Voltage - Supply	2.7V ~ 18V
Current - Supply	350 µA	Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount	Base Product Number	MIC1557

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Ratings and Reviews

S**y 02/14/2024

Delivery 21 days, the product corresponds to the description and photo. Quality is good, works.

A**a 11/14/2023

Fast, smoothly. Recommend

B**n 09/13/2023

Unfortunately one of the two cables arrived broken, but seller wel handled the problem!

A**a 02/18/2020

Thank you, i got it. Works...-shit, so be healthy. I wanted a lighter... But judging by the sound already and i do not know))) the child is afraid) and so all the hood, i advise the seller.