ORIGINAL MIC1557 MIC1557YM5 IttyBitty RC Timer/Oscillator SOT-23-5

Produk ASLI dari Microchip Technology Mfr.Part #: MIC1557YM5-TR Package : SOT-23-5 Features - +2.7V to +18V Operation - Low Current * lt;1 μA Typical Shutdown Mode (MIC1557) * 200 μA 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 - lt;15Ω Output On-Resistance - No Output Cross-Conduction Current Spikes - lt;0.005%/°C Temperature Stability - lt;0.055%/V Supply Stability - 10-pin Ultra-Thin DFN Package (2 mm × 2 mm × 0.4 mm) - Small SOT-23-5 Surface Mount Package Applications - Precision Timer - Pulse Generation - Sequential Timing - Time-Delay Generation - Missing Pulse Detector - Micropower Oscillator to 5 MHz - Charge-Pump Driver - LED Blinker - Voltage Converter - Linear Sweep Generator - Variable Frequency and Duty Cycle Oscillator 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. These devices are similar in function to the industry standard “555”, without a frequency control (FC) pin or an open-collector discharge (D) pin. The threshold pin (THR) has precedence over the trigger (TRG) input, ensuring that the BiCMOS output is off when TRG is high. The MIC1555 can 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.