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AM2431BSDGHIALVR. Datasheet(PDF) 81 Page - Texas Instruments

Part # AM2431BSDGHIALVR.
Description  AM243x Sitara™ Microcontrollers
PDF  282 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

AM2431BSDGHIALVR. Datasheet(HTML) 81 Page - Texas Instruments

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Table 5-61. MMC1 Signal Descriptions
SIGNAL NAME [1]
SIGNAL
TYPE [2]
DESCRIPTION [3]
ALV/ANI PIN [4]
ALX PIN [4]
MMC1_CLK
IO
MMC/SD/SDIO Clock
L20
J20
MMC1_CMD
IO
MMC/SD/SDIO Command
J19
J21
MMC1_SDCD
I
SD Card Detect
D19
B17
MMC1_SDWP
I
SD Write Protect
C20
C16
MMC1_DAT0
IO
MMC/SD/SDIO Data 0
K21
J18
MMC1_DAT1
IO
MMC/SD/SDIO Data 1
L21
J19
MMC1_DAT2
IO
MMC/SD/SDIO Data 2
K19
K20
MMC1_DAT3
IO
MMC/SD/SDIO Data 3
K18
K18
5.3.17 OSPI
MAIN Domain Instances
Table 5-62. OSPI0 Signal Descriptions
SIGNAL NAME [1]
SIGNAL
TYPE [2]
DESCRIPTION [3]
ALV/ANI PIN [4]
ALX PIN [4]
OSPI0_CLK
O
OSPI Clock Output
N20
P20
OSPI0_DQS
I
OSPI Data Strobe (DQS) or Loopback Clock Input
N19
P17
OSPI0_ECC_FAIL (2)
I
OSPI ECC Status
L17
OSPI0_LBCLKO
IO
OSPI Loopback Clock Output
N21
M21
OSPI0_CSn0
O
OSPI Chip Select 0 (active low)
L19
L20
OSPI0_CSn1
O
OSPI Chip Select 1 (active low)
L18
M20
OSPI0_CSn2 (2)
O
OSPI Chip Select 2 (active low)
K17
OSPI0_CSn3 (2)
O
OSPI Chip Select 3 (active low)
L17
OSPI0_D0
IO
OSPI Data 0
M19
L19
OSPI0_D1
IO
OSPI Data 1
M18
N20
OSPI0_D2
IO
OSPI Data 2
M20
L21
OSPI0_D3
IO
OSPI Data 3
M21
N19
OSPI0_D4 (1)
IO
OSPI Data 4
P21
OSPI0_D5 (1)
IO
OSPI Data 5
P20
OSPI0_D6 (1)
IO
OSPI Data 6
N18
OSPI0_D7 (1)
IO
OSPI Data 7
M17
OSPI0_RESET_OUT0 (2)
O
OSPI Reset Output
L17
OSPI0_RESET_OUT1 (2)
O
OSPI Reset Output
K17
(1)
This OSPI0 signal is not supported by the ALX packaged device. See AM243x_ALX Package - Unsupported Interfaces and Signals for
additional details. The OSPI0 is limited to QSPI (4-bit) functionality for the ALX package.
(2)
This OSPI0 signal is not supported by the ALX packaged device. See AM243x_ALX Package - Unsupported Interfaces and Signals for
additional details.
5.3.18 Power Supply
Table 5-63. Power Supply Signal Descriptions
SIGNAL NAME [1]
SIGNAL
TYPE [2]
DESCRIPTION [3]
ALV/ANI PIN [4]
ALX PIN [4]
CAP_VDDS0 (1)
CAP
External capacitor connection for IO group 0
H12
D12
CAP_VDDS1 (1)
CAP
External capacitor connection for IO group 1
T7
N5
CAP_VDDS2 (1)
CAP
External capacitor connection for IO group 2
R11
U9
CAP_VDDS3 (1)
CAP
External capacitor connection for IO group 3
N14
R16
CAP_VDDS4 (1)
CAP
External capacitor connection for IO group 4
M16
N18
CAP_VDDS5 (1)
CAP
External capacitor connection for IO group 5
L13
M18
CAP_VDDSHV_MMC1 (2)
CAP
External capacitor connection for SDIO_LDO
K15
J17
CAP_VDDS_MCU (1)
CAP
External capacitor connection for IO MCU
H10
D9
VDDA_0P85_SERDES0
PWR
SERDES0 0.85V analog supply
P12, P13
www.ti.com
AM2434, AM2432, AM2431
SPRSP65J – APRIL 2021 – REVISED JUNE 2026
Copyright © 2026 Texas Instruments Incorporated
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Product Folder Links: AM2434 AM2432 AM2431



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