Microchip, 32bit ARM Cortex M3, SAM3U Microcontroller, 96MHz, 256 kB Flash, 100-Pin LQFP

View all Microcontrollers
Bulk discount available

Subtotal (1 unit)*

£5.57

(exc. VAT)

£6.68

(inc. VAT)

Add to Basket
Select or type quantity
In Stock
  • 90 unit(s) ready to ship
  • Plus 999,999,909 unit(s) shipping from 26 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 - 24£5.57
25 - 99£5.29
100 +£5.05

*price indicative

Packaging Options:
RS Stock No.:
131-1187
Mfr. Part No.:
ATSAM3U4CA-AU
Brand:
Microchip
Find similar products by selecting one or more attributes.
Select all

Brand

Microchip

Family Name

SAM3U

Package Type

LQFP

Mounting Type

Surface Mount

Pin Count

100

Device Core

ARM Cortex M3

Data Bus Width

32bit

Program Memory Size

256 kB

Maximum Frequency

96MHz

RAM Size

52 kB

USB Channels

1

Number of PWM Units

1 x 16 bit

Number of SPI Channels

4

Number of UART Channels

1

Number of CAN Channels

0

Number of USART Channels

3

Typical Operating Supply Voltage

1.8 V, 3.3 V

Number of I2C Channels

1

Number of LIN Channels

0

Number of Ethernet Channels

0

Number of PCI Channels

0

Height

1.45mm

Pulse Width Modulation

1 (4 x 16 bit)

Dimensions

14 x 14 x 1.45mm

Width

14mm

Data Rate

192Mbit/s

Length

14mm

ADCs

8 x 10/12 bit

Maximum Number of Ethernet Channels

0

Instruction Set Architecture

RISC

Program Memory Type

Flash

Maximum Operating Temperature

+85 °C

Number of ADC Units

2

Minimum Operating Temperature

-40 °C

SMART SAM3U ARM® Cortex-M3 Microcontrollers


Based on the ARM® Cortex®-M3 Flash microcontroller, the Atmel® SMART SAM3U comes with on-chip high-speed USB Device-and-Transceiver, SDIO/SDCard/MMC and SPI interfaces. The series also includes QTouch capacitive touch support, dual-bank Flash, and memory protection unit.

Related links