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AM6421 Datasheet(PDF) 92 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) 92 Page - Texas Instruments

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Table 5-74. UART4 Signal Descriptions
SIGNAL NAME [1]
SIGNAL
TYPE [2]
DESCRIPTION [3]
ALV/ANI PIN [4]
UART4_CTSn
I
UART Clear to Send (active low)
R16, R5, T3, V1
UART4_RTSn
O
UART Request to Send (active low)
R1, R17, T2, W1
UART4_RXD
I
UART Receive Data
A17, L20, V20,
W4, Y3
UART4_TXD
O
UART Transmit Data
B17, J19, T1,
V21, W5, Y4
Table 5-75. UART5 Signal Descriptions
SIGNAL NAME [1]
SIGNAL
TYPE [2]
DESCRIPTION [3]
ALV/ANI PIN [4]
UART5_CTSn
I
UART Clear to Send (active low)
W20, Y13, Y2
UART5_RTSn
O
UART Request to Send (active low)
T21, V12, V3
UART5_RXD
I
UART Receive Data
C17, D19, P16,
T6, Y5
UART5_TXD
O
UART Transmit Data
C20, D17, R18,
W2
Table 5-76. UART6 Signal Descriptions
SIGNAL NAME [1]
SIGNAL
TYPE [2]
DESCRIPTION [3]
ALV/ANI PIN [4]
UART6_CTSn
I
UART Clear to Send (active low)
T4, W21
UART6_RTSn
O
UART Request to Send (active low)
P17, P4
UART6_RXD
I
UART Receive Data
C13, U6, V6,
Y21
UART6_TXD
O
UART Transmit Data
D14, W3, Y20
5.3.24.2 MCU Domain
Table 5-77. MCU_UART0 Signal Descriptions
SIGNAL NAME [1]
SIGNAL
TYPE [2]
DESCRIPTION [3]
ALV/ANI PIN [4]
MCU_UART0_CTSn
I
UART Clear to Send (active low)
D8
MCU_UART0_RTSn
O
UART Request to Send (active low)
E8
MCU_UART0_RXD
I
UART Receive Data
A9
MCU_UART0_TXD
O
UART Transmit Data
A8
Table 5-78. MCU_UART1 Signal Descriptions
SIGNAL NAME [1]
SIGNAL
TYPE [2]
DESCRIPTION [3]
ALV/ANI PIN [4]
MCU_UART1_CTSn
I
UART Clear to Send (active low)
B8
MCU_UART1_RTSn
O
UART Request to Send (active low)
B9
MCU_UART1_RXD
I
UART Receive Data
C9
MCU_UART1_TXD
O
UART Transmit Data
D9
AM6442, AM6441, AM6422, AM6421, AM6412, AM6411
SPRSP56J – JANUARY 2021 – REVISED JUNE 2026
www.ti.com
92
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Copyright © 2026 Texas Instruments Incorporated
Product Folder Links: AM6442 AM6441 AM6422 AM6421 AM6412 AM6411



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