ILC812

Impala Linear Corporation ILC811/812 Preliminary Microprocessor Reset Circuits General Description The ILC811/ILC812 is a low cost microprocessor supervisory circuit that asserts a reset if the power supply drops below a designated threshold or the manual reset pin is forced low. Several different reset thresholds are available to accommodate systems operating at 3V, 3.3V or 5V. The ILC811 has an active low RESET output, while the ILC812 offers an active high RESET output. The reset output is guaranteed to remain asserted for a minimum of 140ms after VCC has risen above the designated reset threshold. The ILC811/ILC812 is available in a 4-pin SOT-143 Typical Circuit VCC VCC VCC Features ! Precision Voltage Monitor for 3V, 3.3V or 5V Power Supplies ! 6mA Supply Current ! 140ms Minimum Reset Pulse Width ! RESET Remains Valid with VCC as Low as 1.4V ! Active Low Manual Reset Input ! No External Components ! 4-Pin SOT-143 Package Applications ! Critical Microprocessor Power Monitorin...