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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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MSP430FR6007 Datenblatt(PDF) 40 Page - Texas Instruments |
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MSP430FR6007 Datenblatt(HTML) 40 Page - Texas Instruments |
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40 / 179 page  40 MSP430FR6007, MSP430FR6005 SLASEV3 – MARCH 2020 www.ti.com Submit Documentation Feedback Product Folder Links: MSP430FR6007 MSP430FR6005 Specifications Copyright © 2020, Texas Instruments Incorporated Table 5-5. High-Frequency Crystal Oscillator, HFXT (continued) over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (1) PARAMETER TEST CONDITIONS VCC MIN TYP MAX UNIT (4) When HFXTBYPASS is set, HFXT circuits are automatically powered down. Input signal is a digital square wave with parametrics defined in the Schmitt-trigger Inputs section of this datasheet. Duty cycle requirements are defined by DCHFXT, SW. (5) Oscillation allowance is based on a safety factor of 5 for recommended crystals. (6) Includes start-up counter of 1024 clock cycles. (7) This represents all the parasitic capacitance present at the HFXIN and HFXOUT terminals, respectively, including parasitic bond and package capacitance. The effective load capacitance, CL,eff can be computed as CIN × COUT / (CIN + COUT), where CIN and COUT is the total capacitance at the HFXIN and HFXOUT terminals, respectively. (8) Requires external capacitors at both terminals to meet the effective load capacitance specified by crystal manufacturers. Recommended effective load capacitance values supported are 14 pF, 16 pF, and 18 pF. Maximum shunt capacitance of 7 pF. The PCB adds additional capacitance, so it must also be considered in the overall capacitance. Verify that the recommended effective load capacitance of the selected crystal is met. (9) Frequencies above the MAX specification do not set the fault flag. Frequencies between the MIN and MAX specifications might set the flag. A static condition or stuck at fault condition will set the flag. (10) Measured with logic-level input frequency but also applies to operation with crystals. fHFXT,SW HFXT oscillator logic-level square- wave input frequency, bypass mode HFXTBYPASS = 1, HFFREQ = 0(4)(3) 0.9 4 MHz HFXTBYPASS = 1, HFFREQ = 1(4)(3) 4.01 8 HFXTBYPASS = 1, HFFREQ = 2(4)(3) 8.01 16 HFXTBYPASS = 1, HFFREQ = 3(4)(3) 16.01 24 DCHFXT, SW HFXT oscillator logic-level square- wave input duty cycle HFXTBYPASS = 1 40% 60% OAHFXT Oscillation allowance for HFXT crystals(5) HFXTBYPASS = 0, HFXTDRIVE = 0, HFFREQ = 1(2), fHFXT,HF = 4 MHz, CL,eff = 16 pF 450 Ω HFXTBYPASS = 0, HFXTDRIVE = 1, HFFREQ = 1, fHFXT,HF = 8 MHz, CL,eff = 16 pF 320 HFXTBYPASS = 0, HFXTDRIVE = 2, HFFREQ = 2, fHFXT,HF = 16 MHz, CL,eff = 16 pF 200 HFXTBYPASS = 0, HFXTDRIVE = 3, HFFREQ = 3, fHFXT,HF = 24 MHz, CL,eff = 16 pF 200 tSTART,HFXT Start-up time(6) fOSC = 4 MHz, HFXTBYPASS = 0, HFXTDRIVE = 0, HFFREQ = 1, TA = 25°C, CL,eff = 16 pF 3.0 V 1.6 ms fOSC = 24 MHz, HFXTBYPASS = 0, HFXTDRIVE = 3, HFFREQ = 3, TA = 25°C, CL,eff = 16 pF 3.0 V 0.6 CHFXIN Integrated load capacitance at HFXIN terminaI(7)(8) 2 pF CHFXOUT Integrated load capacitance at HFXOUT terminaI(7)(8) 2 pF fFault,HFXT Oscillator fault frequency(9)(10) 0 800 kHz |
Ähnliche Teilenummer - MSP430FR6007 |
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Ähnliche Beschreibung - MSP430FR6007 |
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