Specification	ATSAM3U2EA-AU

Connectivity	I2C, USB, SPI, UART/USART, EBI/EMI, SSC, Memory Card
Core Processor	ARM® Cortex®-M3
Core Size	32-Bit Single-Core
Data Converters [custom]	8x12b, 8x10b
Mounting Type	Surface Mount
Number of I/O	96
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Oscillator Type	Internal
Package / Case	144-LQFP
Peripherals	Brown-out Detect/Reset, DMA, POR, WDT, PWM, I2S
Program Memory Size	128 KB
Program Memory Type	FLASH
RAM Size	36 K
Speed	96 MHz
Supplier Device Package	144-LQFP (20x20)
Voltage - Supply (Vcc/Vdd) [Max]	3.6 V
Voltage - Supply (Vcc/Vdd) [Min]	1.62 V

ATSAM3U4E Series

Part	Package / Case	Core Size	Data Converters [custom]	Peripherals	Number of I/O	Supplier Device Package	Speed	Core Processor	Connectivity	Mounting Type	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Program Memory Type	RAM Size	Program Memory Size	Operating Temperature [Max]	Operating Temperature [Min]	Oscillator Type	Data Converters
Microchip Technology ATSAM3U1EA-CU	144-LFBGA	32-Bit Single-Core	8x10b 8x12b	Brown-out Detect/Reset DMA I2S POR PWM WDT	96	144-BGA (13x13)	96 MHz	ARM® Cortex®-M3	EBI/EMI I2C Memory Card SPI SSC UART/USART USB	Surface Mount	3.6 V	1.62 V	FLASH	20 K	64 KB	85 °C	-40 °C	Internal
Microchip Technology ATSAM3U2EA-CU	144-LFBGA	32-Bit Single-Core	8x10b 8x12b	Brown-out Detect/Reset DMA I2S POR PWM WDT	96	144-BGA (13x13)	96 MHz	ARM® Cortex®-M3	EBI/EMI I2C Memory Card SPI SSC UART/USART USB	Surface Mount	3.6 V	1.62 V	FLASH	36 K	128 KB	85 °C	-40 °C	Internal
Microchip Technology ATSAM3U1CB-AU	100-LQFP	32-Bit Single-Core		Brown-out Detect/Reset DMA I2S POR PWM WDT	57	100-LQFP (14x14)	96 MHz	ARM® Cortex®-M3	EBI/EMI I2C Memory Card SPI SSC UART/USART USB	Surface Mount	3.6 V	1.62 V	FLASH	20 K	64 KB	85 °C	-40 °C	Internal	A/D 4x10b A/D 4x12b
Microchip Technology ATSAM3U1CA-CU		32-Bit Single-Core		Brown-out Detect/Reset DMA I2S POR PWM WDT	57	100-TFBGA (9x9)	96 MHz	ARM® Cortex®-M3	EBI/EMI I2C Memory Card SPI SSC UART/USART USB	Surface Mount	3.6 V	1.62 V	FLASH	20 K	64 KB	85 °C	-40 °C	Internal	A/D 4x10b A/D 4x12b
Microchip Technology ATSAM3U2EA-AU	144-LQFP	32-Bit Single-Core	8x10b 8x12b	Brown-out Detect/Reset DMA I2S POR PWM WDT	96	144-LQFP (20x20)	96 MHz	ARM® Cortex®-M3	EBI/EMI I2C Memory Card SPI SSC UART/USART USB	Surface Mount	3.6 V	1.62 V	FLASH	36 K	128 KB	85 °C	-40 °C	Internal
Microchip Technology ATSAM3U2CA-CU		32-Bit Single-Core		Brown-out Detect/Reset DMA I2S POR PWM WDT	57	100-TFBGA (9x9)	96 MHz	ARM® Cortex®-M3	EBI/EMI I2C Memory Card SPI SSC UART/USART USB	Surface Mount	3.6 V	1.62 V	FLASH	36 K	128 KB	85 °C	-40 °C	Internal	A/D 4x10b A/D 4x12b
Microchip Technology ATSAM3U4CA-AU	100-LQFP	32-Bit Single-Core		Brown-out Detect/Reset DMA I2S POR PWM WDT	57	100-LQFP (14x14)	96 MHz	ARM® Cortex®-M3	EBI/EMI I2C Memory Card SPI SSC UART/USART USB	Surface Mount	3.6 V	1.62 V	FLASH	52 K	256 KB	85 °C	-40 °C	Internal	A/D 4x10b A/D 4x12b
Microchip Technology ATSAM3U4EA-AU	144-LQFP	32-Bit Single-Core	8x10b 8x12b	Brown-out Detect/Reset DMA I2S POR PWM WDT	96	144-LQFP (20x20)	96 MHz	ARM® Cortex®-M3	EBI/EMI I2C Memory Card SPI SSC UART/USART USB	Surface Mount	3.6 V	1.62 V	FLASH	52 K	256 KB	85 °C	-40 °C	Internal
Microchip Technology ATSAM3U1EB-CU	144-LFBGA	32-Bit Single-Core	8x10b 8x12b	Brown-out Detect/Reset DMA I2S POR PWM WDT	96	144-BGA (13x13)	96 MHz	ARM® Cortex®-M3	EBI/EMI I2C Memory Card SPI SSC UART/USART USB	Surface Mount	3.6 V	1.62 V	FLASH	20 K	64 KB	85 °C	-40 °C	Internal
Microchip Technology ATSAM3U4CA-CU		32-Bit Single-Core		Brown-out Detect/Reset DMA I2S POR PWM WDT	57	100-TFBGA (9x9)	96 MHz	ARM® Cortex®-M3	EBI/EMI I2C Memory Card SPI SSC UART/USART USB	Surface Mount	3.6 V	1.62 V	FLASH	52 K	256 KB	85 °C	-40 °C	Internal	A/D 4x10b A/D 4x12b

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tray	1	$ 8.07
		25	$ 7.34
		100	$ 6.65
Microchip Direct	TRAY	1	$ 8.07
		25	$ 7.34
		100	$ 6.65
		1000	$ 6.07
		5000	$ 5.81

Description

General part information

ATSAM3U4E Series

Microchip's ARM®-based SAM3U4E is a member of the SAM3U family of flash microcontrollers based on the high-performance 32-bit ARM Cortex®-M3 RISC processor.

It operates at a maximum speed of 96MHz and features two 128KB of dual-bank flash memory and 52KB of SRAM.

The peripheral set includes a High Speed USB device and PHY at 480Mbps, high-speed multimedia card interface for SDIO/SD/MMC, a 16-bit external bus interface supporting NAND flash, three USARTs, two TWIs (I2C), four SPIs, I2S, four PWM timers, three 16-bit timers, RTC, and eight 12-bit and eight 10-bit ADCs.

Documents

Technical documentation and resources

Datasheet

AT02333: Safe and Secure Bootloader Implementation for SAM3/4

Application Notes

Data Converter Terminology - This Application Note defines a number of key parameters related to data converters (ADC and DAC) and discusses the extent to which they can be tested. Equations are given to evaluate all key values.

Application Notes

AT02346: Using the MPU on Cortex-M3 / Cortex-M4 based Microcontrollers

Application Notes

AT91-AN01: Using the Two-wire interface (TWI) in Master Mode on AT91SAM Microcontrollers

Application Notes

AT06864: SAM3/4C/4CM/4CP/4E/4N/4S/G Reset Controller (RSTC) Driver

Application Notes