MIC1555 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 (THR) has precedence over the trigger (TRG) input, ensuring that the BiCMOS...
MIC1555 Key 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
- 50% square wave with one resistor, one capacitor
- Threshold input precedence over trigger input
- <15Ω output on resistance
- No output cross-conduction current spikes