SPRACU5C June 2021 – September 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
For proper operation, all power pins (balls) must be supplied with the supply voltages specified in the Recommended Operating Conditions section of the device-specific data sheet. Power pins that have specific connectivity requirements are specified in the Pin Connectivity Requirements section of the device-specific data sheet.
With the AM64x family of processors, core supply VDD_CORE can be operated at 0.75 V or 0.85 V. When VDD_CORE is operating at 0.75 V, VDD_CORE shall be ramped up prior to all 0.85 V supplies. When VDD_CORE is operating at 0.85 V, VDD_CORE and VDDR_CORE are recommended to be powered by the same source to ramp together.
For AM243x family of processors, VDD_CORE is specified to operate only at 0.85 V. VDD_CORE and VDDR_CORE are recommended to be powered by the same source to ramp together.
VDDS_OSC and VDDA_MCU supplies are recommended to be connected always.
Peripheral core supplies VDDA_0P85_SERDES0, VDDA_0P85_SERDES0_C, VDDA_0P85_USB0 and VDDR_CORE are specified to operate only at 0.85 V.
Peripheral core supplies VDD_MMC0 and VDD_DLL_MMC0 are specified to operate at 0.85 V when MMC0 is used. It is recommended to connect VDD_MMC0 and VDD_DLL_MMC0 to the same power source as VDD_CORE when MMC0 is not used.
For more information, see the Recommended Operating Conditions and Power Supply Sequencing sections of the device-specific data sheet.
The processor includes multiple analog supply pins that provide power to sensitive analog circuitry like VDDA_MCU, VDDA_PLLx [x=0-2], VDDA_1P8_SERDES0, VDDA_1P8_USB0 and VDDA_ADC0. Filtered (ferrite) power supplies are recommended. For more information, see the [FAQ] AM625 / AM623 Custom board hardware design – Ferrite (power supply filter) recommendations for SoC supply rails. This is a generic FAQ and can be used for AM64x / AM243x processors.