XM33C321ASPZR datasheet(78/122 Pages) TI2

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– Independent Sample and Hold Window up to 1472 sample clocks for high impedance analog signals

– User configurable automatic abort to pre-empt high priority sequencer during active conversion

• Sample cap reset option with preset to VREF- or (VREF+ - VREF-)/2

• Up to 4 post processing blocks (PPB) with offset correction, zero-crossing detection and compare high/low

function

• Internal channels for temperature sensing and supply monitoring

• Software selectable reference:

– Configurable internal reference voltage of 1.4V and 2.5V (requires decoupling capacitor on VREF+/- pins)

– External reference supplied to the ADC through the VREF+/- pins

Table 8-8. ADC Channel Mapping

CHANNEL[0:31]

SIGNAL NAME(1)

HSADC0

HSADC1

ADC0_0

ADC1_0

ADC0_1

ADC1_1

ADC0_2

ADC1_2

ADC0_3

ADC1_3

ADC0_4

ADC1_4

ADC0_5

ADC1_5

ADC0_6

ADC1_6

ADC0_7

ADC1_7

ADC0_8

ADC1_8

ADC0_9

ADC1_9

ADC0_10

ADC1_10

Temperature Sensor

ADC1_11

ADC0_12

ADC1_12

ADC0_13

ADC1_13

ADC0_14

ADC1_14

ADC0_15

ADC0_16

ADC0_17

ADC0_18

ADC0_19

ADC0_20

ADC0_21

22 - 29

VBAT Monitor

Supply Monitor

(1)

For more information about device analog connections please refer to Section 8.12.5

For more details, see the ADC chapter of the MSPM33C3x 160-MHz Microcontrollers Technical Reference

Manual.

8.12.2 COMP

The comparator peripheral in the device compares the voltage levels on two inputs terminals and provides a

digital output based on this comparison. It supports the following key features:

• Programmable hysteresis

• Programmable reference voltage:

– External reference voltage (VREF IO)

MSPM33C321A, MSPM33C3219

SLASFB6A – DECEMBER 2025 – REVISED SEPTEMBER 2026

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