MIC1555YMU-TR

Programmable Timers And Oscillators Overview

The MIC1555YMU-TR is a CMOS RC timer and oscillator from Microchip Technology's IttyBitty series, housed in a 10-pin UTDFN package. Operating on a +2.7V to +18V supply, it functions as an astable or monostable circuit with rail-to-rail output. Key electrical parameters include a typical supply current of 240 μA at 5V, timing accuracy within ±2%, and temperature stability below 0.005%/°C. The device supports frequencies up to 5 MHz and features threshold input precedence over the trigger input.

Programmable Timers And Oscillators Feature Summary

• 10-pin Ultra-Thin DFN Package (2 mm × 2 mm × 0.4 mm)
• +2.7V to +18V Supply Voltage Operation
• Monostable and Astable Timing Modes
• Threshold Input Precedence Over Trigger Input

Programmable Timers And Oscillators Applications

• Precision Timer
• Pulse Generation
• Sequential Timing
• Time-Delay Generation
• Micropower Oscillator to 5 MHz

Programmable Timers And Oscillators Procurement Notes

Verify the ordering suffix 'TR' indicates a 5,000-unit reel quantity for the UTDFN package. Confirm the 'Y' suffix corresponds to the -40°C to +85°C operating temperature range. Ensure the specific datasheet revision matches the design requirements before procurement.

Programmable Timers And Oscillators Selection Notes

Select the MIC1555YMU-TR when a low-profile 10-pin UTDFN footprint is required for space-constrained designs. This variant provides separate Threshold and Trigger inputs for flexible monostable and astable configurations. Compare against SOT-23-5 variants if a smaller surface-mount package is acceptable.

Programmable Timers And Oscillators Part Context

This component belongs to the MIC1555/57 family of IttyBitty CMOS RC timers. The MIC1555 variant specifically offers both monostable and astable operation modes. The YMU suffix denotes the industrial temperature grade and the 10-lead UTDFN physical package type.

Programmable Timers And Oscillators Replacement Considerations

MIC1555YM5-TR: Identical function in a 5-lead SOT-23 package. MIC1555YD5-TR: Identical function in a 5-lead Thin SOT-23 package.