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ATSAMA5D41A-CU

SMART ARM-based Embedded MPU

Atmel Corporation 

3.3 Input/Output Description

Table 3-3. SAMA5D4 I/O Type Description

I/O Type

GPIO

GPIO_CLK

GPIO_CLK2

GPIO_ANA

EBI

Voltage Range

3.0–3.6V

3.0–3.6V

3.0–3.6V

3.0–3.6V

1.65–1.95V, 3.0–3.6V

Analog

—

—

—

I

—

Pull-up

Type (2)

Typ Value (Ω)

Switchable

(1)

Switchable

(1)

Switchable

(1)

Switchable

(1)

Switchable

(1)

Pull-down

Type (2)

Typ Value (Ω)

Switchable

(1)

Switchable

(1)

Switchable

(1)

—

(1)

Switchable

(1)

Schmitt

Trigger (2)

Switchable

Switchable

Switchable

Switchable

—

RST

3.0–3.6V

—

Reset State

100K

Reset State

100K

Reset State

SYSC

1.65–3.6V

—

Reset State

100K

Reset State

15K

Reset State

USBHS

3.0–3.6V

I/O

—

—

—

—

—

CLOCK

1.65–3.6V

I/O

—

—

—

—

—

PIOBU

1.88–2.12V

—

Switchable

150K

Switchable

150K

Switchable

DIB

3.0–3.6V

I/O

—

(1)

—

(1)

—

Notes: 1. Refer to Section 55.2 “DC Characteristics”.

2. When “Reset State” is indicated, the configuration is defined by the “Reset State” column of the pin description tables (refer

to Table 3-1 and Table 3-2).

Table 3-4. SAMA5D4 I/O Type Assignment and Frequency

I/O Type

I/O Frequency (MHz) Load (pF) Fan-out Drive Control

Signal Name

GPIO

—

—

—

High/Medium/Low

All PIO lines except the lines indicated further

on in this table

MCI_CLK

—

—

—

High/Medium/Low MCI0CK, MCI1CK

GPIO_CLK

—

—

—

High/Medium/Low SPI0CK, SPI1CK, ETXCLK, ERXCLK

GPIO_CLK2

—

—

—

High/Medium/Low LCDPCK

GPIO_ANA

—

—

—

Fixed to Medium ADx

EBI

—

—

—

High/Medium/Low

1.8V/3.3V

All EBI signals

DDR_IO

—

—

—

High/Medium/Low All DDR signals

RST

—

—

—

Fixed to Low NRST, NTRST, RST

JTAG

—

—

—

Fixed to Medium TCK, TDI, TMS, TDO

SYSC

—

—

—

No

WKUP, SHDN, JTAGSEL, TST

VBG

—

—

—

No

VBG

USBHS

480

20

—

No

HHSDPC, HHSDPB, HHSDPA/DHSDP,

HHSDMC, HHSDMB, HHSDMA/DHSDM

CLOCK

50

50

—

No

XIN, XOUT, XIN32, XOUT32

PIOBU

—

—

—

No

PIOBUx

SAMA5D4 Series [DATASHEET]

27

Atmel-11238C-ATARM-SAMA5D4-Datasheet_12-Jul-16

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