ATSAM3U1CA-AU datasheet(6/61 Pages) ATMEL

Part #	ATSAM3U1CA-AU

Description	AT91ARM M3 Cortex-based Processor

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Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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6

6430BS–ATARM–01-Sep-09

SAM3U Series

Flash Memory

ERASE

Flash and NVM Configuration Bits Erase

Command

Input

High

VDDBU

Internal permanent 15K

pulldown

Reset/Test

NRST

Microcontroller Reset

I/O

Low

VDDIO

Internal permanent

pullup

NRSTB

Asynchronous Microcontroller Reset

Input

Low

VDDBU

Internal permanent

pullup

TST

Test Select

Input

Internal permanent

pulldown

Universal Asynchronous Receiver Transceiver - UART

URXD

UART Receive Data

Input

UTXD

UART Transmit Data

Output

PIO Controller - PIOA - PIOB - PIOC

PA0 - PA31

Parallel IO Controller A

I/O

VDDIO

•Schmitt Trigger (1)

Reset State:

•PIO Input

•Internal pullup enabled

PB0 - PB31

Parallel IO Controller B

I/O

•Schmitt Trigger (2)

Reset State:

•PIO Input

•Internal pullup enabled

PC0 - PC31

Parallel IO Controller C

I/O

•Schmitt Trigger(3)

Reset State:

•PIO Input

•Internal pullup enabled

External Bus Interface

D0 - D15

Data Bus

I/O

A0 - A23

Address Bus

Output

NWAIT

External Wait Signal

Input

Low

Static Memory Controller - SMC

NCS0 - NCS3

Chip Select Lines

Output

Low

NWR0 - NWR1

Write Signal

Output

Low

NRD

Read Signal

Output

Low

NWE

Write Enable

Output

Low

NBS0 - NBS1

Byte Mask Signal

Output

Low

NAND Flash Controller - NFC

NANDOE

NAND Flash Output Enable

Output

Low

NANDWE

NAND Flash Write Enable

Output

Low

NANDRDY

NAND Ready

Input

Table 3-1.

Signal Description List (Continued)

Signal Name

Function

Type

Active

Level

Voltage

Reference

Comments

Similar Part No. - ATSAM3U1CA-AU

Manufacturer	Part #	Datasheet	Description
ATMEL Corporation	ATSAM3U1CA-AU	1Mb / 62P	AT91ARM Cortex M3-based Microcontrollers

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ATMEL Corporation	ATSAM3U	1Mb / 62P	AT91ARM Cortex M3-based Microcontrollers
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STMicroelectronics	STM32L151ZDT6	1Mb / 140P	Ultra-low-power 32-bit MCU ARM-based Cortex-M3, 384KB Flash
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ATSAM3U1CA-AU Datasheet(PDF) 6 Page - ATMEL Corporation

ATSAM3U1CA-AU Datasheet(HTML) 6 Page - ATMEL Corporation

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