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TC1272A Scheda tecnica(PDF) 2 Page - Microchip Technology |
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TC1272A Scheda tecnica(HTML) 2 Page - Microchip Technology |
2 / 14 page TC1272A DS21877B-page 2 2004-2012 Microchip Technology Inc. 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings† Supply Voltage (VDD to GND) ..........................................6.0V RESET .................................................. –0.3V to (VDD +0.3V) Input Current, VDD.........................................................20 mA Output Current, RESET ................................................20 mA dV/dt (VDD)............................................................. 100V/µsec Operating Temperature Range..................... –40°C to +125°C Power Dissipation (TA = 70°C): 3-Pin SOT-23B (derate 4 mW/°C above +70°C) ....320 mW Storage Temperature Range ........................ –65°C to +150°C Maximum Junction Temperature, T J.............................. 150°C † Notice: Stresses above those listed under “Maximum ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Expo- sure to maximum rating conditions for extended periods may affect device reliability. PIN FUNCTION TABLE NAME FUNCTION GND Ground RESET RESET push-pull output remains low while VDD is below the reset voltage threshold and for 140 msec (min.) after VDD rises above reset threshold VDD ELECTRICAL CHARACTERISTICS VDD = Full Range, TA = Operating Temperature Range, unless otherwise noted. Typical values are at TA = +25°C, VDD = 5V for L/M/J, 3.3V for T/S, 3.0V for R and 2.5V for Z (Note 1). Parameter Sym Min Typ Max Units Test Conditions VDD Range 1.0 — 5.5 V TA = 0°C to +70°C 1.2 — 5.5 TA = – 40°C to +125°C Supply Current ICC —12 30 µA TC1272AL/M/J: VDD < 5.5V —9 25 TC1272AR/S/T/Z: VDD < 3.6V Reset Threshold (Note 2) VTH 4.56 4.63 4.70 V TC1272AL: TA = +25°C 4.50 — 4.75 TA = – 40°C to +125°C 4.31 4.38 4.45 V TC1272AM: TA = +25°C 4.25 — 4.50 V TA = – 40°C to +125°C 3.93 4.00 4.06 V TC1272AJ: TA = +25°C 3.89 — 4.10 V TA = – 40°C to +125°C 3.04 3.08 3.11 V TC1272AT: TA = +25°C 3.00 — 3.15 V TA = – 40°C to +125°C 2.89 2.93 2.96 V TC1272AS: TA = +25°C 2.85 — 3.00 V TA = – 40°C to +125°C 2.59 2.63 2.66 V TC1272AR: TA = +25°C 2.55 — 2.70 V TA = – 40°C to +125°C 2.28 2.32 2.35 V TC1272AZ: TA = +25°C 2.25 — 2.38 V TA = – 40°C to +125°C Reset Threshold Tempco — 30 — ppm/°C VDD to Reset Delay, — 65 — µsec VDD = VTH to (VTH – 100 mV) (Note 2) Reset Active Time Out Period 140 320 560 msec RESET Output Voltage Low VOL —— 0.3 V TC1272AR/S/T/Z: VDD = VTH min, ISINK = 1.2 mA —— 0.4 TC1272AL/M/J: VDD = VTH min, ISINK = 3.2 mA —— 0.3 VDD > 1.0V, ISINK = 50 µA RESET Output Voltage High VOH 0.8 VDD —— V TC1272AR/S/T/Z: VDD > VTH max, ISOURCE = 500 µA VDD – 1.5 — — TC1272AL/M/J: VDD > VTH max, ISOURCE = 800 µA Note 1: Production testing done at T A = +25°C, overtemperature limits ensured by QC screen. 2: RESET Output for TC1272A. |
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