SLAAES2 December   2025 MSPM33C321A

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Device List
    1. 2.1 LQFP100 migration options
    2. 2.2 NFBGA100 migration options
    3. 2.3 LQFP80 migration option
    4. 2.4 LQFP64 migration options
    5. 2.5 VQFN48 migration options
  6. 3Review of differences between MSPM0Gx51x and MSPM33C32xx
    1. 3.1 Schematic and PCB layout considerations
    2. 3.2 Feature-set difference between MSPM0Gx51x and MSPM33C32xx
    3. 3.3 Pinout considerations

Feature-set difference between MSPM0Gx51x and MSPM33C32xx

Peripheral and feature comparison between MSPM0Gx51x and MSPM33C32xx

Peripheral Name

MSPM0Gx51x instance name

MSPM33C32xx instance name

Differences

CPU

M0+

M33

Feature differences. See ARM documentation

GPIO & IOMUX

GPIOA, GPIOB, GPIOC

GPIOA, GPIOB, GPIOC

No differences

Standard DMA

DMA0

DMA1

No differences

Secure DMA

-

DMA0

N/a

Math accelerator

MATHACL

-

N/a

CAN

CAN0

MCAN0

No differences

CAN

CAN1

MCAN1

No differences

UART

UART0

UC1_0

Feature differences. MSPM33C32xx does not support DALI, IrDA, or ISO7816 modes

UART

UART1

UC1_1

No differences except MSPM0Gx51x does not support LIN mode

UART

UART2

UC13_1

Feature differences. MSPM0Gx51x does not support ISO7816. MSPM33C32xx S2U0 is retained but not active in STOP and STANDBY mode

UART

UART3

UC13_0

Feature differences. MSPM0Gx51x does not support LIN, DALI, IrDA, ISO7816

UART

UART4

UC13_2

No differences except MSPM0Gx51x does not support LIN mode

UART

UART5

UC13_3

No differences except MSPM0Gx51x does not support ISO7816

UART

UART6

UC14

No differences except MSPM0Gx51x does not support ISO7816

UART

UART7

UC12

Feature differences. MSPM33C32xx S2U2 does not support LIN, DALI, IrDA. MSPM33C32xx S2U2 is retained but not active in STOP or STANDBY mode

I2C

I2C0

UC1_0

UC15_0

Feature differences. MSPM33C32xx does not support FIFO mode or digital glitch filter

I2C

I2C1

UC1_1

Feature differences. MSPM33C32xx does not support FIFO mode or digital glitch filter

I2C

I2C2

UC13_0

UC15_1

Feature differences. MSPM33C32xx does not support FIFO mode or digital glitch filter

SPI

SPI0

UC2

No differences except MSPM33C32xx does not support packing

SPI

SPI1

UC13_0

No differences except MSPM33C32xx does not support packing or multiple chip select

SPI

SPI2

UC13_1

No differences except MSPM33C32xx does not support packing or multiple chip select

-

QSPI

N/a

Timer

TIMA0

TIMA0_0

No differences

Timer

TIMA1

TIMA0_1

No differences except MSPM33C32xx supports 4 external capture/compare units where MSPM0Gx51x supports 2 external capture compare units

Timer

TIMG0

TIMG4_0

No differences except MSPM33C32xx supports shadow load and shadow capture/compare

Timer

-

TIMG4_1

N/a

Timer

TIMG6

TIMG4_2

No differences

Timer

TIMG7

TIMG4_3

No differences

Timer

TIMG8

TIMG8_0

No differences

Timer

TIMG9

TIMG8_1

No differences

Timer

TIMG12

TIMG12_0

No differences

Timer

TIMG14

-

N/a

ADC

ADC0

ADC0

Feature differences. See Technical Reference Manual.

ADC

ADC1

ADC1

Feature differences. See Technical Reference Manual.

Voltage reference

VREF

VREF

Feature differences. See the VREF comment in Schematic and PCB consideration

DAC

DAC0

-

N/a

Comparator

COMP0

COMP0

No differences except MSPM33C32xx adds low-power scan mode

Comparator

COMP1

COMP1

No differences except MSPM33C32xx adds low-power scan mode

Comparator

COMP2

-

N/a

Audio

-

I2S0

N/a

Audio

-

I2S1

N/a

RTC

RTC_B

RTC

No differences except MSPM33C32xx RTC exists in VBAT power island

Watchdog

WWDT0

WWDT

No differences.

Watchdog

WWDT1

IWDT

Feature differences. MSPM33C32xx IWDT does not support window mode, or interval timer mode

AES

AES-ADV

AES-ADV

No differences.

CRC

CRC

CRC

No differences.

SHA

-

SHA

N/a

PKA

-

PKA

N/a

Tamper

-

TAMP

N/a