MIC8115 Micrel Semiconductor, MIC8115 Datasheet
MIC8115
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MIC8115 Summary of contents
Page 1
... The function of this device is to assert a reset if either the power supply drops below a designated reset threshold level forced low. The MIC8115 has an active low RESET output. The reset output is guaranteed to remain asserted for a minimum of 1100ms after VCC has risen above the designated reset threshold level ...
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... MR Minimum Pulse Width MR to Reset Delay MR Input Threshold Input Threshold Pull-Up Resistance MR Glitch Immunity 2 Operating Temperature Range MIC8115TU . . . . . . . . . . . . . . . . . . . . . . . . -40°C to 85°C Storage Temperature Range . . . . . . . . . . . . .-65°C to 150°C Lead Temperature (Soldering - 10 sec 300°C 20mA Power Dissipation ( +70° 320mW Min 1.4 1.6 3 ...
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... MR is held low and for one reset timeout period (1100ms) min.) after MR goes high. This input can be shorted to ground via a switch or driven from CMOS or TTl logic. Pulled high internally through a 20k resistor. Float if unused Power supply input. MIC8115 Microprocessor Reset Circuit 3 ...
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... MIC8115 Microprocessor Reset Circuit Block Diagram Figure 1. MIC8115 Block Diagram 4 ...
Page 5
... RESET will remain valid with low as 1.4V Transients The MIC8115 is relatively immune to negative-going V CC glitches below the reset threshold. Typically, a negative-going transient 125mV below the reset threshold with a duration less will not cause an unwanted reset ...
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... MIC8115 Microprocessor Reset Circuit 6 ...
Page 7
... Packaging Information U Package, 4-Pin SOT-143 Small-Outline Transistor Package MIC8115 Microprocessor Reset Circuit Dimensions are in inches. Device Marking Information Lot Code NTXX = MIC8115TU 7 ...
Page 8
... MIC8115 Microprocessor Reset Circuit Packaging Information 2.7–0.1 3.1–0.1 8 Tape and Reel Information 4.0–0.1 2.0–0.05 fl1.1–0.1 4.0–0.1 1.2–0.1 Dimensions are in millimeters. fl1.5–0.1 1.75–0.1 3.5–0.05 8.0–0.3 ...