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MSP430F135IPMR Datasheet(PDF) 31 Page - Texas Instruments |
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MSP430F135IPMR Datasheet(HTML) 31 Page - Texas Instruments |
31 / 69 page MSP430x13x, MSP430x14x, MSP430x14x1 MIXED SIGNAL MICROCONTROLLER SLAS272F − JULY 2000 − REVISED JUNE 2004 31 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature (unless otherwise noted) (continued) PUC/POR PARAMETER TEST CONDITIONS MIN TYP MAX UNIT t(POR_Delay) Internal time delay to release POR 150 250 µs VCC threshold at which POR TA = −40°C 1.4 1.8 V VPOR VCC threshold at which POR release delay time begins (see Note 1) TA = 25°C 1.1 1.5 V VPOR release delay time begins (see Note 1) TA = 85°C VCC = 2.2 V/3 V 0.8 1.2 V V(min) VCC threshold required to generate a POR (see Note 2) VCC |dV/dt| ≥ 1V/ms CC 0.2 V t(reset) RST/NMI low time for PUC/POR Reset is accepted internally 2 µs NOTES: 1. VCC rise time dV/dt ≥ 1V/ms. 2. When driving VCC low in order to generate a POR condition, VCC should be driven to 200mV or lower with a dV/dt equal to or less than −1V/ms. The corresponding rising VCC must also meet the dV/dt requirement equal to or greater than +1V/ms. VCC POR V t V POR V (min) POR No POR Figure 10. Power-On Reset (POR) vs Supply Voltage 1.2 1.5 1.8 0.8 1.2 1.4 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 −40 −20 0 20 40 60 80 25 °C TA − Temperature − °C Figure 11. VPOR vs Temperature |
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