MIC1555 Datasheet PDF - Micrel

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.

●Features

●• +2.7V to +18V operation

●•Low current

●− <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

●•<15Ω 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