MIC1232 Micrel Semiconductor, MIC1232 Datasheet
MIC1232
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MIC1232 Summary of contents
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... MIC1232 µP Supervisory Circuit Description The MIC1232 is a multifunction circuit which monitors microprocessor activity, external reset and power supplies in microprocessor based systems. The circuit functions include a watchdog timer, power supply monitor, microprocessor reset, and manual pushbutton reset input. The power supply line is monitored with a comparator and an internal voltage reference ...
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... Input Capacitance, ST, TOL C IN (See Note 3) Output Capacitance, RST, RST C OUT (See Note 3) 2 Operating Temperature Range MIC1232M .-40°C to 85°C MIC1232D . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage Temperature Range . . . . . . . . . . . . .-65°C to 150°C Lead Temperature (Soldering - 10 sec 300°C Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . 700mW Min Typ 4 ...
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... Note measured with outputs open and inputs within 0.5V of supply rails. Note 2: PBRST has an internal pull-up resistor (typ. 40k ). Note 3: Guaranteed by design. Note 4: PBRST must be held low for a minimum of 20ms to guarantee a reset. Note falling at 1.66mv/ s. Note 6: RST has an open drain output. MIC1232 P Supervisory Circuit Min Typ ...
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... MIC1232 P Supervisory Circuit Pin Functions Pin 1: PBRST - Pushbutton reset input. This input is debounced and can be driven with external logic signals or by means of a mechanical pushbutton to actively force a reset. All pulses less than 1ms in duration on the PBRST pin are ignored, whereas, any pulse with a duration of 20ms or greater is guaranteed to cause a reset ...
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... Block Diagram Circuit Description TD Pin Gnd Open V CC MIC1232 P Supervisory Circuit t TD Min. Typ. 62.5ms 150ms 250ms 600ms 500ms 1200ms Table 1. Watchdog Timeout Period Max. 250ms 1000ms 2000ms 5 ...
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... MIC1232 P Supervisory Circuit Circuit Description Power Monitor The RST and RST pins are asserted whenever V CC falls below the reset threshold voltage as determined by the TOL pin tolerance level (4.62V reset threshold voltage) can be selected by connecting the TOL pin to ground and a 10% tolerance (4.37V reset threshold voltage) can be selected by connecting the TOL pin ...
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... Alternate Source Cross Reference Guide Industry P/N DS1232LP DS1232LPS-2 DS1232 DS1232LPN DS1232LPSN-2 DS1232N MAX1232CPA MAX1232CSA MAX1232EPA MAX1232ESA MAX1232C/D MIC1232 P Supervisory Circuit MIC Direct Replacement MIC1232N MIC1232M MIC1232N MIC1232N MIC1232M MIC1232N MIC1232N MIC1232M MIC1232N MIC1232M MIC1232D 7 ...
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... MIC1232 P Supervisory Circuit Packaging Information M Package, 8-Pin Small Outline N Package, 8-Pin Plastic Dual-In-Line 0.035 0.015 0.150 0.125 0.023 0.015 8 0.400 0.370 0.260 0.240 0.150 0.120 0.110 0.090 0.310 0.290 0.370 0.300 ...