10,000+ Happy Customers
20+ Years in Business
75,000+ SKUs in Stock
80+ Authorized Manufacturers
Helping Tech Companies Create What’s Next!
phoneCall +1.949.783.7300
GET A
QUOTE

Microcontrollers

Suntsu Electronics: Your premier supplier of microcontrollers. Our advanced part search tool streamlines the process of finding the ideal microcontroller for your application. Search by part number, manufacturer, or specifications and discover a comprehensive selection of high-performance microcontrollers designed to power your embedded applications.

Part Search

CLEAR SEARCH
Total Products: 76,307
ImageData
Sheet		Part NumberManufacturerDescriptionCategoryDevice PackageVoltageOperating
Temp		Additional SpecificationsQtyGet A
Quote
ATUC128D3-Z2UT
ATUC128D3-Z2UTMicrochip TechnologyIC MCU 32BIT 128KB FLASH 64QFNMicrocontrollers64-QFN (9x9)N/A-40°C ~ 85°C (TA)
Core Processor:
AVR
Core Size:
32-Bit Single-Core
Speed:
48MHz
Connectivity:
I2C, SPI, UART/USART, USB
Peripherals:
Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
Number of I/O:
51
Program Memory Size:
128KB (128K x 8)
Program Memory Type:
FLASH
RAM Size:
16K x 8
Voltage – Supply (Vcc/Vdd):
1.65V ~ 3.6V
Data Converters:
A/D 8x10b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
64-QFN (9×9)
Package / Case:
64-VFQFN Exposed Pad
223
GET A
QUOTE
ATUC128D4-AUR
ATUC128D4-AURMicrochip TechnologyIC MCU 32BIT 128KB FLASH 48TQFPMicrocontrollers48-TQFP (7x7)N/A-40°C ~ 85°C (TA)
Core Processor:
AVR
Core Size:
32-Bit Single-Core
Speed:
48MHz
Connectivity:
I2C, SPI, UART/USART, USB
Peripherals:
Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
Number of I/O:
35
Program Memory Size:
128KB (128K x 8)
Program Memory Type:
FLASH
RAM Size:
16K x 8
Voltage – Supply (Vcc/Vdd):
1.65V ~ 3.6V
Data Converters:
A/D 6x10b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
48-TQFP (7×7)
Package / Case:
48-TQFP
1,935
GET A
QUOTE
ATUC128D4-AUT
ATUC128D4-AUTMicrochip TechnologyIC MCU 32BIT 128KB FLASH 48TQFPMicrocontrollers48-TQFP (7x7)N/A-40°C ~ 85°C (TA)
Core Processor:
AVR
Core Size:
32-Bit Single-Core
Speed:
48MHz
Connectivity:
I2C, SPI, UART/USART, USB
Peripherals:
Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
Number of I/O:
35
Program Memory Size:
128KB (128K x 8)
Program Memory Type:
FLASH
RAM Size:
16K x 8
Voltage – Supply (Vcc/Vdd):
1.65V ~ 3.6V
Data Converters:
A/D 6x10b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
48-TQFP (7×7)
Package / Case:
48-TQFP
186
GET A
QUOTE
ATUC128D4-Z1UR
ATUC128D4-Z1URMicrochip TechnologyIC MCU 32BIT 128KB FLASH 48QFNMicrocontrollers48-QFN (7x7)N/A-40°C ~ 85°C (TA)
Core Processor:
AVR
Core Size:
32-Bit Single-Core
Speed:
48MHz
Connectivity:
I2C, SPI, UART/USART, USB
Peripherals:
Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
Number of I/O:
35
Program Memory Size:
128KB (128K x 8)
Program Memory Type:
FLASH
RAM Size:
16K x 8
Voltage – Supply (Vcc/Vdd):
1.65V ~ 3.6V
Data Converters:
A/D 6x10b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
48-QFN (7×7)
Package / Case:
48-VFQFN Exposed Pad
209
GET A
QUOTE
ATUC128D4-Z1UT
ATUC128D4-Z1UTMicrochip TechnologyIC MCU 32BIT 128KB FLASH 48QFNMicrocontrollers48-QFN (7x7)N/A-40°C ~ 85°C (TA)
Core Processor:
AVR
Core Size:
32-Bit Single-Core
Speed:
48MHz
Connectivity:
I2C, SPI, UART/USART, USB
Peripherals:
Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
Number of I/O:
35
Program Memory Size:
128KB (128K x 8)
Program Memory Type:
FLASH
RAM Size:
16K x 8
Voltage – Supply (Vcc/Vdd):
1.65V ~ 3.6V
Data Converters:
A/D 6x10b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
48-QFN (7×7)
Package / Case:
48-VFQFN Exposed Pad
159
GET A
QUOTE
ATUC128L3U-AUR
ATUC128L3U-AURMicrochip TechnologyIC MCU 32BIT 128KB FLASH 64TQFPMicrocontrollers64-TQFP (10x10)N/A-40°C ~ 85°C (TA)
Core Processor:
AVR
Core Size:
32-Bit Single-Core
Speed:
50MHz
Connectivity:
I2C, SPI, UART/USART, USB
Peripherals:
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O:
51
Program Memory Size:
128KB (128K x 8)
Program Memory Type:
FLASH
RAM Size:
32K x 8
Voltage – Supply (Vcc/Vdd):
1.62V ~ 3.6V
Data Converters:
A/D 8x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
64-TQFP (10×10)
Package / Case:
64-TQFP
1,490
GET A
QUOTE
ATUC128L3U-AUT
ATUC128L3U-AUTMicrochip TechnologyIC MCU 32BIT 128KB FLASH 64TQFPMicrocontrollers64-TQFP (10x10)N/A-40°C ~ 85°C (TA)
Core Processor:
AVR
Core Size:
32-Bit Single-Core
Speed:
50MHz
Connectivity:
I2C, SPI, UART/USART, USB
Peripherals:
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O:
51
Program Memory Size:
128KB (128K x 8)
Program Memory Type:
FLASH
RAM Size:
32K x 8
Voltage – Supply (Vcc/Vdd):
1.62V ~ 3.6V
Data Converters:
A/D 8x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
64-TQFP (10×10)
Package / Case:
64-TQFP
893
GET A
QUOTE
ATUC128L3U-Z3UR
ATUC128L3U-Z3URMicrochip TechnologyIC MCU 32BIT 128KB FLASH 64QFNMicrocontrollers64-QFN (9x9)N/A-40°C ~ 85°C (TA)
Core Processor:
AVR
Core Size:
32-Bit Single-Core
Speed:
50MHz
Connectivity:
I2C, SPI, UART/USART, USB
Peripherals:
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O:
51
Program Memory Size:
128KB (128K x 8)
Program Memory Type:
FLASH
RAM Size:
32K x 8
Voltage – Supply (Vcc/Vdd):
1.62V ~ 3.6V
Data Converters:
A/D 8x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
64-QFN (9×9)
Package / Case:
64-VFQFN Exposed Pad
204
GET A
QUOTE
ATUC128L3U-Z3UT
ATUC128L3U-Z3UTMicrochip TechnologyIC MCU 32BIT 128KB FLASH 64QFNMicrocontrollers64-QFN (9x9)N/A-40°C ~ 85°C (TA)
Core Processor:
AVR
Core Size:
32-Bit Single-Core
Speed:
50MHz
Connectivity:
I2C, SPI, UART/USART, USB
Peripherals:
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O:
51
Program Memory Size:
128KB (128K x 8)
Program Memory Type:
FLASH
RAM Size:
32K x 8
Voltage – Supply (Vcc/Vdd):
1.62V ~ 3.6V
Data Converters:
A/D 8x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
64-QFN (9×9)
Package / Case:
64-VFQFN Exposed Pad
1,132
GET A
QUOTE
ATUC128L4U-AUR
ATUC128L4U-AURMicrochip TechnologyIC MCU 32BIT 128KB FLASH 48TQFPMicrocontrollers48-TQFP (7x7)N/A-40°C ~ 85°C (TA)
Core Processor:
AVR
Core Size:
32-Bit Single-Core
Speed:
50MHz
Connectivity:
I2C, SPI, UART/USART, USB
Peripherals:
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O:
36
Program Memory Size:
128KB (128K x 8)
Program Memory Type:
FLASH
RAM Size:
32K x 8
Voltage – Supply (Vcc/Vdd):
1.62V ~ 3.6V
Data Converters:
A/D 8x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
48-TQFP (7×7)
Package / Case:
48-TQFP
740
GET A
QUOTE
ATUC128L4U-AUT
ATUC128L4U-AUTMicrochip TechnologyIC MCU 32BIT 128KB FLASH 48TQFPMicrocontrollers48-TQFP (7x7)N/A-40°C ~ 85°C (TA)
Core Processor:
AVR
Core Size:
32-Bit Single-Core
Speed:
50MHz
Connectivity:
I2C, SPI, UART/USART, USB
Peripherals:
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O:
36
Program Memory Size:
128KB (128K x 8)
Program Memory Type:
FLASH
RAM Size:
32K x 8
Voltage – Supply (Vcc/Vdd):
1.62V ~ 3.6V
Data Converters:
A/D 8x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
48-TQFP (7×7)
Package / Case:
48-TQFP
1,107
GET A
QUOTE
ATUC128L4U-D3HR
ATUC128L4U-D3HRMicrochip TechnologyIC MCU 32BIT 128KB FLASH 48TLLGAMicrocontrollers48-TLLGA (5.5x5.5)N/A-40°C ~ 85°C (TA)
Core Processor:
AVR
Core Size:
32-Bit Single-Core
Speed:
50MHz
Connectivity:
I2C, SPI, UART/USART, USB
Peripherals:
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O:
36
Program Memory Size:
128KB (128K x 8)
Program Memory Type:
FLASH
RAM Size:
32K x 8
Voltage – Supply (Vcc/Vdd):
1.62V ~ 3.6V
Data Converters:
A/D 8x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
48-TLLGA (5.5×5.5)
Package / Case:
48-UFLGA Exposed Pad
1,443
GET A
QUOTE
ATUC128L4U-D3HT
ATUC128L4U-D3HTMicrochip TechnologyIC MCU 32BIT 128KB FLASH 48TLLGAMicrocontrollers48-TLLGA (5.5x5.5)N/A-40°C ~ 85°C (TA)
Core Processor:
AVR
Core Size:
32-Bit Single-Core
Speed:
50MHz
Connectivity:
I2C, SPI, UART/USART, USB
Peripherals:
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O:
36
Program Memory Size:
128KB (128K x 8)
Program Memory Type:
FLASH
RAM Size:
32K x 8
Voltage – Supply (Vcc/Vdd):
1.62V ~ 3.6V
Data Converters:
A/D 8x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
48-TLLGA (5.5×5.5)
Package / Case:
48-UFLGA Exposed Pad
565
GET A
QUOTE
ATUC256L3U-AUR
ATUC256L3U-AURMicrochip TechnologyIC MCU 32BIT 256KB FLASH 64TQFPMicrocontrollers64-TQFP (10x10)N/A-40°C ~ 85°C (TA)
Core Processor:
AVR
Core Size:
32-Bit Single-Core
Speed:
50MHz
Connectivity:
I2C, SPI, UART/USART, USB
Peripherals:
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O:
51
Program Memory Size:
256KB (256K x 8)
Program Memory Type:
FLASH
RAM Size:
32K x 8
Voltage – Supply (Vcc/Vdd):
1.62V ~ 3.6V
Data Converters:
A/D 8x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
64-TQFP (10×10)
Package / Case:
64-TQFP
1,953
GET A
QUOTE
ATUC256L3U-AUT
ATUC256L3U-AUTMicrochip TechnologyIC MCU 32BIT 256KB FLASH 64TQFPMicrocontrollers64-TQFP (10x10)N/A-40°C ~ 85°C (TA)
Core Processor:
AVR
Core Size:
32-Bit Single-Core
Speed:
50MHz
Connectivity:
I2C, SPI, UART/USART, USB
Peripherals:
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O:
51
Program Memory Size:
256KB (256K x 8)
Program Memory Type:
FLASH
RAM Size:
32K x 8
Voltage – Supply (Vcc/Vdd):
1.62V ~ 3.6V
Data Converters:
A/D 8x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
64-TQFP (10×10)
Package / Case:
64-TQFP
972
GET A
QUOTE
ATUC256L3U-Z3UR
ATUC256L3U-Z3URMicrochip TechnologyIC MCU 32BIT 256KB FLASH 64QFNMicrocontrollers64-QFN (9x9)N/A-40°C ~ 85°C (TA)
Core Processor:
AVR
Core Size:
32-Bit Single-Core
Speed:
50MHz
Connectivity:
I2C, SPI, UART/USART, USB
Peripherals:
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O:
51
Program Memory Size:
256KB (256K x 8)
Program Memory Type:
FLASH
RAM Size:
32K x 8
Voltage – Supply (Vcc/Vdd):
1.62V ~ 3.6V
Data Converters:
A/D 8x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
64-QFN (9×9)
Package / Case:
64-VFQFN Exposed Pad
598
GET A
QUOTE
ATUC256L3U-Z3UT
ATUC256L3U-Z3UTMicrochip TechnologyIC MCU 32BIT 256KB FLASH 64QFNMicrocontrollers64-QFN (9x9)N/A-40°C ~ 85°C (TA)
Core Processor:
AVR
Core Size:
32-Bit Single-Core
Speed:
50MHz
Connectivity:
I2C, SPI, UART/USART, USB
Peripherals:
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O:
51
Program Memory Size:
256KB (256K x 8)
Program Memory Type:
FLASH
RAM Size:
32K x 8
Voltage – Supply (Vcc/Vdd):
1.62V ~ 3.6V
Data Converters:
A/D 8x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
64-QFN (9×9)
Package / Case:
64-VFQFN Exposed Pad
663
GET A
QUOTE
ATUC256L4U-AUR
ATUC256L4U-AURMicrochip TechnologyIC MCU 32BIT 256KB FLASH 48TQFPMicrocontrollers48-TQFP (7x7)N/A-40°C ~ 85°C (TA)
Core Processor:
AVR
Core Size:
32-Bit Single-Core
Speed:
50MHz
Connectivity:
I2C, SPI, UART/USART, USB
Peripherals:
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O:
36
Program Memory Size:
256KB (256K x 8)
Program Memory Type:
FLASH
RAM Size:
32K x 8
Voltage – Supply (Vcc/Vdd):
1.62V ~ 3.6V
Data Converters:
A/D 8x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
48-TQFP (7×7)
Package / Case:
48-TQFP
92
GET A
QUOTE
ATUC256L4U-AUT
ATUC256L4U-AUTMicrochip TechnologyIC MCU 32BIT 256KB FLASH 48TQFPMicrocontrollers48-TQFP (7x7)N/A-40°C ~ 85°C (TA)
Core Processor:
AVR
Core Size:
32-Bit Single-Core
Speed:
50MHz
Connectivity:
I2C, SPI, UART/USART, USB
Peripherals:
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O:
36
Program Memory Size:
256KB (256K x 8)
Program Memory Type:
FLASH
RAM Size:
32K x 8
Voltage – Supply (Vcc/Vdd):
1.62V ~ 3.6V
Data Converters:
A/D 8x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
48-TQFP (7×7)
Package / Case:
48-TQFP
689
GET A
QUOTE
ATUC256L4U-AUTES
ATUC256L4U-AUTESMicrochip TechnologyIC MCU 32BIT 256KB FLASH 48TQFPMicrocontrollers48-TQFP (7x7)N/A-40°C ~ 85°C (TA)
Core Processor:
AVR
Core Size:
32-Bit Single-Core
Speed:
50MHz
Connectivity:
I2C, SPI, UART/USART, USB
Peripherals:
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O:
36
Program Memory Size:
256KB (256K x 8)
Program Memory Type:
FLASH
RAM Size:
32K x 8
Voltage – Supply (Vcc/Vdd):
1.62V ~ 3.6V
Data Converters:
A/D 8x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
48-TQFP (7×7)
Package / Case:
48-TQFP
53
GET A
QUOTE

Featured Brands

About Microcontrollers

Microcontroller products are sophisticated digital logic devices that can be programmed by the user. Microcontrollers traditionally include working memory, frequently incorporate mixed-signal peripherals, and are generally used with simpler software paradigms focused on repeating a predefined series of tasks. For applications requiring higher performance or parallel processing, designers may instead use field programmable gate arrays.

We’ve Got You Covered!

If you can’t find the parts you’re looking for in our database, don’t worry! We’re here to help. Simply fill out the form below with the part number you need and your contact information, and we’ll locate it for you. If you prefer to speak to someone directly, our sales team is available at 949.783.7300.

























    I agree to receive newsletters and promotional emails. I can unsubscribe at any time.


























      I agree to receive newsletters and promotional emails. I can unsubscribe at any time.


      See What We Have to Offer!

      keyboard_arrow_up