

ATSAM3U2CA-AU
Microchip Technology
-40℃~+85℃ 1.62V~3.6V 10bit、12bit 128KB 32 Bit 36KB 57 96MHz ARM Cortex-M3 Built-in FLASH Power-on reset (POR)、Undervoltage detection (BOR/LVD/LVR/LVI)、Watchdog reset、External pin reset (NRST)、Built-in general-purpose timer、Integrated LDO、Calendar function、Hardware ECC check LQFP-100(14x14) Microcontrollers (MCU/MPU/SOC) ROHS
- Category
- Microcontrollers (MCU, MPU, SOC)
- Package
- LQFP-100(14x14)
- Pins
- 100
Overview
The ATSAM3U2CA-AU is a microcontroller made by Microchip Technology in a LQFP-100(14x14) package with 100 pins. -40℃~+85℃ 1.62V~3.6V 10bit、12bit 128KB 32 Bit 36KB 57 96MHz ARM Cortex-M3 Built-in FLASH Power-on reset (POR)、Undervoltage detection (BOR/LVD/LVR/LVI)、Watchdog reset、External pin reset (NRST)、Built-in general-purpose timer、Integrated LDO、Calendar function、Hardware ECC check LQFP-100(14x14) Microcontrollers (MCU/MPU/SOC) ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:ATSAM3U2CA-AU_C81839, from EasyEDA) and its footprint (Package_QFP:LQFP-100_14x14mm_P0.5mm, from KiCad's library), ready for a KiCad board. 5 are in stock at JLCPCB (part C81839). 3 open-source boards in 3 repositories on GitHub use it.
Symbol
Footprint
Parameters
12- ADC (Bit)
- 10bit
- CPU Core
- ARM Cortex-M3
- CPU Maximum Speed
- 96MHz
- Core Size
- 32 Bit
- Features
- Built-in general-purpose timer
- Number of I/O
- 57
- Operating Temperature
- -40℃~+85℃
- Oscillator Type
- Built-in
- Program Memory Type
- FLASH
- Program Storage Size
- 128KB
- RAM Size
- 36KB
- Voltage - Supply
- 1.62V~3.6V
Order codes
1- ATSAM3U2CA-AULCSC C81839
Pinout
100| Pin | Name | Type |
|---|---|---|
| 1 | VDDANA | Unspecified |
| 2 | ADVREF | Unspecified |
| 3 | GNDANA | Unspecified |
| 4 | AD12BVREF | Unspecified |
| 5 | PA22/PGMD14 | Unspecified |
| 6 | PA30 | Unspecified |
| 7 | PB3 | Unspecified |
| 8 | PB4 | Unspecified |
| 9 | VDDCORE | Unspecified |
| 10 | PA13/PGMD5 | Unspecified |
| 11 | PA14/PGMD6 | Unspecified |
| 12 | PA15/PGMD7 | Unspecified |
| 13 | PA16/PGMD8 | Unspecified |
| 14 | PA17/PGMD9 | Unspecified |
| 15 | PB16 | Unspecified |
| 16 | PB15 | Unspecified |
| 17 | PA18/PGMD10 | Unspecified |
| 18 | PA19/PGMD11 | Unspecified |
| 19 | PA20/PGMD12 | Unspecified |
| 20 | PA21/PGMD13 | Unspecified |
| 21 | PA23/PGMD15 | Unspecified |
| 22 | VDDIO | Unspecified |
| 23 | PA24 | Unspecified |
| 24 | PA25 | Unspecified |
| 25 | PA26 | Unspecified |
| 26 | PA0/PGMNCMD | Unspecified |
| 27 | PA1/PGMRDY | Unspecified |
| 28 | PA2/PGMNOE | Unspecified |
| 29 | PA3/PGMNVALID | Unspecified |
| 30 | PA4/PGMM0 | Unspecified |
| 31 | PA5/PGMM1 | Unspecified |
| 32 | PA6/PGMM2 | Unspecified |
| 33 | PA7/PGMM3 | Unspecified |
| 34 | VDDCORE | Unspecified |
| 35 | GND | Unspecified |
| 36 | VDDIO | Unspecified |
| 37 | PA8/PGMD0 | Unspecified |
| 38 | PA9/PGMD1 | Unspecified |
| 39 | PA10/PGMD2 | Unspecified |
| 40 | PA11/PGMD3 | Unspecified |
| 41 | PA12/PGMD4 | Unspecified |
| 42 | FWUP | Unspecified |
| 43 | ERASE | Unspecified |
| 44 | TST | Unspecified |
| 45 | VDDBU | Unspecified |
| 46 | GNDBU | Unspecified |
| 47 | NRSTB | Unspecified |
| 48 | JTAGSEL | Unspecified |
| 49 | XOUT32 | Output |
| 50 | XIN32 | Unspecified |
| 51 | TDI | Unspecified |
| 52 | VDDOUT | Unspecified |
| 53 | VDDIN | Unspecified |
| 54 | TDO/TRACESWO | Output |
| 55 | TMS/SWDIO | Unspecified |
| 56 | TCK/SWCLK | Unspecified |
| 57 | NRST | Unspecified |
| 58 | PB24 | Unspecified |
| 59 | VDDCORE | Unspecified |
| 60 | VDDIO | Unspecified |
| 61 | GND | Unspecified |
| 62 | PB23 | Unspecified |
| 63 | PB22 | Unspecified |
| 64 | PB21 | Unspecified |
| 65 | PB20 | Unspecified |
| 66 | PB19 | Unspecified |
| 67 | PB18 | Unspecified |
| 68 | PB17 | Unspecified |
| 69 | PB14 | Unspecified |
| 70 | PB10 | Unspecified |
| 71 | PB9 | Unspecified |
| 72 | GNDPLL | Unspecified |
| 73 | VDDPLL | Unspecified |
| 74 | XOUT | Output |
| 75 | XIN | Unspecified |
| 76 | DHSDP | Unspecified |
| 77 | DHSDM | Unspecified |
| 78 | VBG | Unspecified |
| 79 | VDDUTMI | Unspecified |
| 80 | DFSDM | Unspecified |
| 81 | DFSDP | Unspecified |
| 82 | GNDUTMI | Unspecified |
| 83 | VDDCORE | Unspecified |
| 84 | PA28 | Unspecified |
| 85 | PA29 | Unspecified |
| 86 | PA31 | Unspecified |
| 87 | VDDCORE | Unspecified |
| 88 | VDDIO | Unspecified |
| 89 | GND | Unspecified |
| 90 | PB0 | Unspecified |
| 91 | PB1 | Unspecified |
| 92 | PB2 | Unspecified |
| 93 | PB11 | Unspecified |
| 94 | PB12 | Unspecified |
| 95 | PB13 | Unspecified |
| 96 | PA27 | Unspecified |
| 97 | PB5 | Unspecified |
| 98 | PB6 | Unspecified |
| 99 | PB7 | Unspecified |
| 100 | PB8 | Unspecified |
Open-source boards using it
All 3- 4 layers40 × 30 mm

- 4 layers25 × 45 mm

- 4 layers117 × 60 mm

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Is there a KiCad symbol and footprint for the ATSAM3U2CA-AU?
Yes. The symbol is EasyEDA_Cloud:ATSAM3U2CA-AU_C81839 and the footprint Package_QFP:LQFP-100_14x14mm_P0.5mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the ATSAM3U2CA-AU?
LQFP-100(14x14), with 100 pins. Its footprint is drawn on this page.
Where is the ATSAM3U2CA-AU datasheet?
Microchip Technology publishes it: the Datasheet link on this page opens it.
Where can I order the ATSAM3U2CA-AU?
JLCPCB lists it as part C81839, with 5 in stock; the sellers' links on this page open their listings.
What can replace the ATSAM3U2CA-AU?
Parts like it in the library: the STM32F407VGT6 by STMicroelectronics, the GD32F303VET6 by GigaDevice Semicon Beijing, the GD32F407VET6 by GigaDevice Semicon Beijing and the GD32F407VGT6 by GigaDevice Semicon Beijing. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the ATSAM3U2CA-AU?
3 boards in 3 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
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LQFP-100(14x14)120MHz 12bit 12bit 2.6V~3.6V 512KB 80 ARM Cortex-M4 FLASH LQFP-100(14x14) Microcontrollers (MCU/MPU/SOC) ROHSGigaDevice Semicon BeijingMicrocontrollers (MCU/MPU/SOC)GD32F407VET6
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