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AM6421 Datasheet(PDF) 6 Page - Texas Instruments

Part # AM6421
Description  AM64x Sitara™ Processors
PDF  273 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

AM6421 Datasheet(HTML) 6 Page - Texas Instruments

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3.1 Functional Block Diagram
Figure 3-1 is functional block diagram for the device.
Note
To understand what device features are currently supported by TI Software Development Kits
(SDKs), search for the AM64x Software Build Sheet located in the Downloads tab option provided
at Processor-SDK-AM64x.
Industrial Connectivity
System Memory
Security
A 64x
M
intro_001
2x Arm®
Cortex -A53
®
256KB L2 with ECC
Arm
®
®
Cortex -A53
128KB TCM
Arm
®
Cortex -R5F
®
Arm
®
®
Cortex -A53
128KB TCM
Arm
®
Cortex -R5F
®
Arm
®
Cortex -R5F
®
Arm
®
Cortex -R5F
®
Arm
®
®
Cortex -M4F
256KB SRAM
2 MB SRAM with ECC
DDR4/LPDDR4 with inline ECC
2x MMCSD
AES
MD5
SHA
3DES
PKA
DRBG
Secure
Boot
System Services
12x GP Timers
4x WWDT
Sync
Manager
3x EQEP
3x ECAP
9x EPWM
4x I2C
GPIO
5x MCSPI
1x ADC
7x UART
PCIe
(C)
1x Single lane
Gen 2
GPMC / ELM
8x FSI
OSPI or QSPI
2x CAN-FD
1x USB 3.1 DRD
(C)
3-port Gb
Ethernet
(B)
General Connectivity
2x I2C
GPIO
2x MCSPI
2x UART
Isolated Connectivity
(A)
(for use with Cortex-M4F)
Application cores
Real-time cores
Isolated core
(A)
PRU-ICSSG
2x RGMII/MII
1x ECAP
24 PWMs
1x UART
40 Real-Time GPIOs
PRU-ICSSG
2x RGMII/MII
1x ECAP
24 PWMs
1x UART
40 Real-Time GPIOs
18x ƩΔ
6x Encoder
18x ƩΔ
6x Encoder
A.
Isolation of peripherals and M4F core is an optional feature.
B.
One port is internally connected only; not connected to any pins.
C.
USB SuperSpeed and PCIe share a common SerDes PHY. Therefore, USB will be limited to non-SuperSpeed modes when using the
SerDes PHY for PCIe.
Figure 3-1. Functional Block Diagram
AM6442, AM6441, AM6422, AM6421, AM6412, AM6411
SPRSP56J – JANUARY 2021 – REVISED JUNE 2026
www.ti.com
6
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Copyright © 2026 Texas Instruments Incorporated
Product Folder Links: AM6442 AM6441 AM6422 AM6421 AM6412 AM6411



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