F280041PMS datasheet(21/230 Pages) TI

21 / 230 page

Table 6-1. Pin Attributes (continued)

SIGNAL NAME

MUX

POSITION

100 PZ

PMQ

64 PM

RSH

TYPE

DESCRIPTION

GPIO18_X2

0, 4, 8, 12

I/O

General-Purpose Input Output 18. This pin and its digital

mux options can only be used when the system is clocked

by INTOSC and X1 has an external pulldown resistor

(recommended 1 kΩ).

SPIA_CLK

I/O

SPI-A Clock

SCIB_TX

SCI-B Transmit Data

CANA_RX

CAN-A Receive

EPWM6_A

ePWM-6 Output A

I2CA_SCL

I/OD

I2C-A Open-Drain Bidirectional Clock

SD1_D2

SDFM-1 Channel 2 Data Input

EQEP2_A

eQEP-2 Input A

PMBUSA_CTL

PMBus-A Control Signal

XCLKOUT

External Clock Output. This pin outputs a divided-down

version of a chosen clock signal from within the device.

ALT

I/O

Crystal oscillator output

GPIO20

I/O

General-Purpose Input Output 20

GPIO21

I/O

General-Purpose Input Output 21

GPIO22_VFBSW

0, 4, 8, 12

I/O

General-Purpose Input Output 22. This pin is configured for

DC-DC mode by default. If the internal DC-DC regulator is

not used, this can be configured as General-Purpose Input

Output 22 by disabling DC-DC and clearing their bits in

GPAAMSEL register.

EQEP1_STROBE

I/O

eQEP-1 Strobe

SCIB_TX

SCI-B Transmit Data

SPIB_CLK

I/O

SPI-B Clock

SD1_D4

SDFM-1 Channel 4 Data Input

LINA_TX

LIN-A Transmit

VFBSW

ALT

Internal DC-DC regulator feedback signal. If the internal DC-

DC regulator is used, tie this pin to the node where L(VSW)

connects to the VDD rail (as close as possible to the

device).

GPIO23_VSW

I/O

General-Purpose Input Output 23. This pin is configured for

DC-DC mode by default. If the internal DC-DC regulator is

not used, this can be configured as General-Purpose Input

Output 23 by disabling DC-DC and clearing their bits in

GPAAMSEL register. This pin has an internal capacitance of

approximately 100 pF. TI Recommends using an alternate

GPIO, or using this pin only for applications which do not

require a fast switching response.

VSW

ALT

Switching output of the internal DC-DC regulator

GPIO24

0, 4, 8, 12

I/O

General-Purpose Input Output 24

OUTPUTXBAR1

Output X-BAR Output 1

EQEP2_A

eQEP-2 Input A

EPWM8_A

ePWM-8 Output A

SPIB_SIMO

I/O

SPI-B Slave In, Master Out (SIMO)

SD1_D1

SDFM-1 Channel 1 Data Input

PMBUSA_SCL

I/OD

PMBus-A Open-Drain Bidirectional Clock

SCIA_TX

SCI-A Transmit Data

ERRORSTS

Error Status Output. This signal requires an external pullup.

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TMS320F280049, TMS320F280049C, TMS320F280048, TMS320F280048C, TMS320F280045,

TMS320F280041, TMS320F280041C, TMS320F280040, TMS320F280040C

SPRS945F – JANUARY 2017 – REVISED FEBRUARY 2021

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F280041PMS Datasheet(PDF) 21 Page - Texas Instruments

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