MIC1555YMU-T5 More Semiconductors - ICs by Microchip Technology

IttyBitty® CMOS RC timer/oscillator

Status: Active
Series: MIC1555
RoHS: Compliant
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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.

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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

Specifications

Product Type Timers
Voltage 2.7 - 18
Pull Range (±PPM) 0
Output Frequency Max. (MHz) 5
Pins | Packaging 10 | X2DFN
Temp Range -40C to +85C
Packing Media Tape and reel (500)

Environmental Information

JEDEC Indicator e4
ROHS Compliant
China EFUP Compliant
Device Weight (g) 0.0
Shipping Weight (kg) 0.711789
Lead Count 10
Package Type X2DFN
Package Width or Size 2x2x0.4mm
Soldering Composition Au Flash

Alternative Descriptions

2.7V to 18V, '555' RC Timer/Oscillator with Trigger Input | Microchip Technology


Frequently Asked Questions

Where can I find additional details, specifications and documents for a MIC1555YMU-T5?

Additional datasheets, footprints and schematics for MIC1555YMU-T5 are listed on our Part Details page. You can also find images and similar parts to MIC1555YMU-T5 on this page.

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Is the MIC1555YMU-T5 RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

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