Microchip Technology ATSAMD21E15B-UUT

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series SAM D21E, Functional Safety (FuSa)
Packaging | Tape & Reel (TR)
Core Processor ARM® Cortex®-M0+
Core Size 32-Bit Single-Core
Speed 48MHz
Connectivity I2C, LINbus, SPI, UART/USART, USB
Peripherals Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
Number of I/O 26
Program Memory Size 32KB (32K x 8)
Program Memory Type FLASH
EEPROM Size -
RAM Size 4K x 8
Voltage - Supply (Vcc/Vdd) 1.62V ~ 3.6V
Data Converters A/D 10x12b; D/A 1x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Supplier Device Package 35-WLCSP (2.82x2.53)
Package / Case 35-XFBGA, WLCSP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The ATSAMD21E15B-UUT is a 32-bit microcontroller from Microchip featuring an ARM Cortex-M0+ core at 48MHz. It offers 32KB flash and 4KB SRAM in a compact 35-ball WLCSP package. With a supply range of 1.62V to 3.6V and peripherals like DMA, I2S, PWM, and WDT, it is designed for space-constrained, low-power embedded applications.

  • Ultra-compact WLCSP package: saves board space for miniaturized designs.
  • Wide voltage range (1.62V-3.6V): supports single-cell battery operation.
  • Integrated I2S: simplifies audio interface design without external codecs.
  • DMA controller: offloads CPU for data transfer, improving efficiency.
  • Brown-out detect and watchdog: enhances system reliability in harsh conditions.

Portable Sensor Nodes

Low 1.62V operation and WLCSP package enable compact, energy-efficient designs for IoT sensing.

Wearable Health Monitors

DMA and PWM support efficient sensor data collection and haptic feedback in small form factors.

Audio Accessories

Integrated I2S peripheral simplifies digital audio streaming for headsets or microphone arrays.

Industrial Control Panels

Brown-out detection and watchdog timer ensure reliable operation in noisy environments.

Battery Management

Low-power modes and wide voltage range allow direct battery monitoring without extra regulators.

Smart Home Controllers

48MHz Cortex-M0+ provides enough compute for protocol handling and peripheral control.

Q: What is the operating voltage range?
A: 1.62V to 3.6V, suitable for battery-powered designs.
Q: What core does it use?
A: ARM Cortex-M0+ at 48MHz.
Q: How much flash and RAM?
A: 32KB flash and 4KB SRAM.
Q: What package is available?
A: 35-ball WLCSP (XFBGA).
Q: Does it support I2S?
A: Yes, includes I2S for audio interfaces.
Base Product Number : ATSAMD21E15B
32-bit 48MHz ARM Cortex-M0+ battery powered DMA I2S IoT low power MCU wearable WLCSP
Q: What is the operating voltage range?
A: 1.62V to 3.6V, suitable for battery-powered designs.
Q: What core does it use?
A: ARM Cortex-M0+ at 48MHz.
Q: How much flash and RAM?
A: 32KB flash and 4KB SRAM.
Q: What package is available?
A: 35-ball WLCSP (XFBGA).
Q: Does it support I2S?
A: Yes, includes I2S for audio interfaces.