G657

Global Mixed-mode Technology G656/G657 Microprocessor Reset IC Features „ Precision Monitoring Voltage of +2.2V and +3.7V „ Fully Specified Over Temperature „ Available in Three Output Configurations Push-Pull RESET Output (G656L) Push-Pull RESET Output (G656H) Open-Drain RESET Output (G657L) „ Reset Deassert Time Smaller than 100µs when VCC Higher than Monitor Voltages (CD Pin Floating) „ Externally Programmable Time Delay Generator „ 27µA Supply Current at VCC=3.3V „ Guaranteed Reset Valid to VCC = 0.8V „ TSOT-23-5 Packages „ 2% Threshold Accuracy Applications „ Computers „ Controllers „ Intelligent Instruments „ Critical µP and µC Power Monitoring „ Portable / Battery-Powered Equipment „ Automotive General Description The G656/G657 are microprocessor (µP) supervisory circuits used to monitor the power supplies in µP and digital systems. They provide excellent circuit reliability and low cost. These circuits perform a single function: they assert a reset sign...