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XM33C321ASPZR Datasheet(PDF) 44 Page - Texas Instruments |
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XM33C321ASPZR Datasheet(HTML) 44 Page - Texas Instruments |
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44 / 113 page  VDD=3.3V, Ta=25℃ (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT tSTART:RE SET Device cold startup time from reset/ power-up (3) Fast boot enabled TBD µs Fast boot disabled 746 NRST Timing tRST:BOO TRST Pulse length on NRST pin to generate BOOTRST ULPCLK≥4MHz 1.5 µs ULPCLK=32kHz 80 tRST:POR Pulse length on NRST pin to generate POR 1 s (1) The wake-up time is measured from the edge of an external wake-up signal (GPIO wake-up event) to the time that the first instruction of the user program is executed, with glitch filter disabled (FILTEREN=0x0) and fast wake enabled (FASTWAKEONLY=1) . (2) The wake-up time is measured from the edge of an external wake-up signal (IOMUX wake-up event) to the time that first instruction of the user program is executed. (3) The start-up time is measured from the time that VDD crosses VBOR0- (cold start-up) to the time that the first instruction of the user program is executed. 7.8 Clock Specifications 7.8.1 System Oscillator (SYSOSC) over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT fSYSOSC Factory trimmed SYSOSC frequency SYSOSCCFG.FREQ=0 (BASE) 32 MHz SYSOSCCFG.FREQ=1 4 SYSOSC ACC SYSOSC frequency accuracy when frequency correction loop (FCL) is enabled(1) SETUSEFCL=1 -40 ℃ ≤ Ta ≤ 125 ℃ -1.4 1.8 % SYSOSC raw accuracy with FCL disabled, 32MHz SETUSEFCL=0,SYSOSCCFG.FREQ=0 -40 ℃ ≤ Ta ≤ 125 ℃ -2.6 1.8 % SYSOSC raw accuracy with FCL disabled, 4MHz SETUSEFCL=0,SYSOSCCFG.FREQ=1 -40 ℃ ≤ Ta ≤ 125 ℃ -2.7 2.3 % (1) The SYSOSC frequency correction loop (FCL) enables high SYSOSC accuracy via an internal reference resistor when using the FCL. See the SYSOSC section of the technical reference manual for details on computing SYSOSC accuracy. 7.8.2 High Frequency Crystal/Clock over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT High frequency crystal oscillator (HFXT) fHFXT HFXT frequency HFXTRSEL=00 4 8 MHz HFXTRSEL=01 8.01 16 HFXTRSEL=10 16.01 32 HFXTRSEL=11 32.01 48 MHz DCHFXT HFXT duty cycle HFXTRSEL=00 40 65 % HFXTRSEL=01 40 60 HFXTRSEL=10 40 60 HFXTRSEL=11 40 60 OAHFXT HFXT crystal oscillation allowance HFXTRSEL=00 (4 to 8MHz range) 2 kΩ CL, eff Integrated effective load capacitance(1) 1 pF tstart, HFXT HFXT start-up time (2) HFXTRSEL=11, 32MHz crystal 0.5 ms MSPM33C321A, MSPM33C3219 SLASFB6 – DECEMBER 2025 www.ti.com 44 Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated Product Folder Links: MSPM33C321A MSPM33C3219 |
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