XM33C321ASPZR datasheet(48/122 Pages) TI2

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7.7.4 Timing Characteristics

VDD=3.3V, Ta=25℃ (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Wakeup Timing

tWAKE:SLEEP

Wakeup time from SLEEP to RUN (1)

1.6

µs

tWAKE:STOP

Wakeup time from STOP to RUN (SYSOSC

enabled) (1)

25.3

µs

tWAKE:STBY

Wakeup time from STANDBY0 to RUN (1)

26.6

µs

Wakeup time from STANDBY1 to RUN (1)

26.8

µs

tWAKEUP:SHDN

Wakeup time from SHUTDOWN to RUN (2)

Fast boot enabled

750

µs

Fast boot disabled

1100

Asynchronous Fast Clock Request Timing

tDELAY

Delay time from edge of asynchronous request to

first 32MHz MCLK edge

Mode is STOP

6.3

µs

Delay time from edge of asynchronous request to

first 32MHz MCLK edge

Mode is STANDBY0

7.6

Delay time from edge of asynchronous request to

first 32MHz MCLK edge

Mode is STANDBY1

7.9

Startup Timing

tSTART:RESET

Device cold startup time from reset/power-up (3)

Fast boot enabled

780

µs

Fast boot disabled

1130

NRST Timing

tRST:BOOTRST

Pulse length on NRST pin to generate BOOTRST

ULPCLK≥4MHz

1.5

µs

ULPCLK=32kHz

tRST:POR

Pulse length on NRST pin to generate POR

(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)

MHz

SYSOSCCFG.FREQ=1

MSPM33C321A, MSPM33C3219

SLASFB6A – DECEMBER 2025 – REVISED SEPTEMBER 2026

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XM33C321ASPZR Datasheet(PDF) 48 Page - Texas Instruments

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