ATSAMG53G19A-UUT - SAM G53 Cortex-M4 MCU 512KB Flash | Microchip
MPN: ATSAMG53G19A-UUT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.95 | $5.95 |
| 10 | $5.4 | $54.00 |
| 100 | $4.65 | $465.00 |
| 500 | $4.1 | $2,050.00 |
| 1,000 | $3.55 | $3,550.00 |
ATSAMG53G19A-UUT Overview
An ARM Cortex-M4 microcontroller is a 32-bit RISC processor core licensed by Arm Holdings that combines high-performance digital signal processing with a single-precision floating-point unit. Microcontrollers in this class sit within the broader taxonomy of embedded microcontrollers -> RISC microcontrollers -> ARM Cortex-M family -> Cortex-M4 subfamily, and are commonly selected for IoT endpoints, motor control, and low-power wireless designs. The Cortex-M4 architecture brings Thumb-2 instruction efficiency, hardware single-cycle MAC, and optional FPU, all of which reduce active-mode current and accelerate return-to-sleep transitions.
Key features of the ATSAMG53G19A-UUT include a 48 MHz maximum CPU clock, full Cortex-M4 DSP instruction set with single-precision FPU, a 12-bit ADC, multiple SERCOM interfaces configurable as USART/UART/SPI/I2C, and a high-speed USB 2.0 Full-Speed device port. The device integrates Microchip's proprietary SleepWalking peripherals that wake the CPU only on relevant events, enabling deep-sleep current in the single-digit microamp range for battery-powered designs.
Technically, the SAM G53 series implements a tightly-coupled SRAM subsystem with zero-wait-state access at full CPU speed, and an efficient Flash controller supporting offline programming. The integrated voltage regulator allows single-supply operation from 1.62V to 3.6V, simplifying power-tree design and supporting direct Li-ion or 2x AA battery sources.
Typical applications include Bluetooth Low Energy sensor hubs (paired via SPI to a companion radio), low-power wearables with always-on sensors, USB human-interface devices such as mice and keyboards, and industrial control boards requiring DSP-class math at modest cost. The 49-ball WLCSP package makes it ideal where PCB area is at a premium.
When designing with this MCU, allocate sufficient decoupling (one 100 nF X7R per VDD pin group plus a bulk 4.7 uF) and follow Microchip's WLCSP routing guidelines to keep the high-speed USB 90-ohm differential pair matched. Erase and program Flash via SWD or the pre-programmed bootloader to avoid expensive parallel programming fixtures.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers and procurement teams evaluate the ATSAMG53G19A-UUT for low-power, footprint-sensitive designs as of 2026-09-22.
Drop-in alternatives for ATSAMG53G19A-UUT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ATSAMG53G19A-UUT (same form factor and footprint) — differing in Core Architecture, Mounting Type, Operating Temperature, Package, USB.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATSAMG53J19A-UUT
✅ Drop-In📋 Reference alternative (not in catalog)
ATSAMG53J19B-UUT
✅ Drop-In📋 Reference alternative (not in catalog)
ATSAMG53J19C-UUT
✅ Drop-In📋 Reference alternative (not in catalog)
ATSAMG53J19D-UUT
✅ Drop-In📋 Reference alternative (not in catalog)
ATSAMG53G19A-UUT
✅ Drop-In✓ In Stock
$3.55 / Unit
View Datasheet →ATSAMG53G19A-UUT Maximum Ratings & Electrical Characteristics
| Core Processor | ARM Cortex-M4 with FPU |
| Core Architecture | 32-bit RISC (Thumb-2, DSP, FPU) |
| Maximum CPU Clock | 48 MHz |
| Program Memory (Flash) | 512 KB |
| SRAM | 96 KB |
| Supply Voltage (VDD) | 1.62 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Package | 49-ball WLCSP |
| Mounting Type | Surface Mount |
| ADC | 12-bit |
| USB | USB 2.0 Full-Speed Device |
| SERCOM / Communication | Multi-instance SERCOM (USART/SPI/I2C) |
| Programming Interface | SWD (Serial Wire Debug) |
| RoHS Status | Compliant |
ATSAMG53G19A-UUT Pin Configuration
| Pin A1 | VDDIO — Digital I/O supply |
| Pin A2 | PA00 — GPIO / SERCOM pad |
| Pin A3 | PA01 — GPIO / SERCOM pad |
| Pin A4 | PA02 — GPIO / SERCOM pad |
| Pin A5 | PA03 — GPIO / SERCOM pad |
| Pin A6 | PA04 — GPIO / SERCOM pad |
| Pin A7 | PA05 — GPIO / SERCOM pad |
| Pin B1 | GND — Ground |
| Pin B2 | PA06 — GPIO / SERCOM pad |
| Pin B3 | PA07 — GPIO / SERCOM pad |
| Pin B4 | PA08 — GPIO / SERCOM pad |
| Pin B5 | PA09 — GPIO / SERCOM pad |
| Pin B6 | PA10 — GPIO / SERCOM pad |
| Pin B7 | PA11 — GPIO / SERCOM pad |
| Pin C1 | VDDIO — Digital I/O supply |
| Pin C2 | PA12 — GPIO / SERCOM pad |
| Pin C3 | PA13 — GPIO / SERCOM pad |
| Pin C4 | PA14 — GPIO / SERCOM pad |
| Pin C5 | PA15 — GPIO / SERCOM pad |
| Pin C6 | PA16 — GPIO / SERCOM pad |
| Pin C7 | PA17 — GPIO / SERCOM pad |
| Pin D1 | GND — Ground |
| Pin D2 | PA18 — GPIO / SERCOM pad |
| Pin D3 | PA19 — GPIO / SERCOM pad |
| Pin D4 | PA20 — GPIO / SERCOM pad |
| Pin D5 | PA21 — GPIO / SERCOM pad |
| Pin D6 | PA22 — GPIO / SERCOM pad |
| Pin D7 | PA23 — GPIO / SERCOM pad |
| Pin E1 | VDDCORE — Core supply (decoupling) |
| Pin E2 | PA24 — GPIO / SERCOM pad |
| Pin E3 | PA25 — GPIO / SERCOM pad |
| Pin E4 | PA26 — GPIO / SERCOM pad |
| Pin E5 | PA27 — GPIO / SERCOM pad |
| Pin E6 | PA28 — GPIO / SERCOM pad |
| Pin E7 | PA29 — GPIO / SERCOM pad |
| Pin F1 | GND — Ground |
| Pin F2 | PA30 — GPIO / SERCOM pad |
| Pin F3 | PA31 — GPIO / SERCOM pad |
| Pin F4 | PB00 — GPIO / SERCOM pad |
| Pin F5 | PB01 — GPIO / SERCOM pad |
| Pin F6 | PB02 — GPIO / SERCOM pad |
| Pin F7 | PB03 — GPIO / SERCOM pad |
| Pin G1 | VDDIO — Digital I/O supply |
| Pin G2 | PB04 — GPIO / SERCOM pad |
| Pin G3 | PB05 — GPIO / SERCOM pad |
| Pin G4 | PB06 — GPIO / SERCOM pad |
| Pin G5 | PB07 — GPIO / SERCOM pad |
| Pin G6 | RESETN — Active-low reset |
| Pin G7 | SWDIO — SWD data |
Typical Applications
ATSAMG53G19A-UUT is suitable for 6 applications: Wearable Fitness and Health Sensor Hub, USB Human Interface Device (Mouse, Keyboard, HID Gamepad), Industrial IoT Sensor Node, Smart Home Connected Sensor Module, Low-Power Wearable Audio Accessory, Battery-Operated Data Logger.
Wearable Fitness and Health Sensor Hub
The ATSAMG53G19A-UUT fits wearable fitness bands and health sensor hubs thanks to its 49-ball WLCSP measuring roughly 2.93 x 3.13 mm, the smallest footprint in the SAM G53 family. The Cortex-M4F core at 48 MHz handles DSP-class sensor-fusion math (pedometer, heart-rate vector magnitude) while SleepWalking peripherals let I2C sensors wake the CPU only on relevant thresholds, holding deep-sleep current in the single-digit microamp range. Its 1.62-3.6 V supply accepts a Li-ion cell directly, simplifying the power tree in space-constrained wrist-form-factor designs.
Recommended
USB Human Interface Device (Mouse, Keyboard, HID Gamepad)
The ATSAMG53G19A-UUT integrates a USB 2.0 Full-Speed Device port with on-chip transceiver and pull-up, eliminating the external PHY required by many competing MCUs. The Cortex-M4F runs HID class drivers natively from library code, so USB HID mouse, keyboard, or gamepad designs need only the MCU, buttons, and a USB connector. The 96 KB SRAM comfortably holds HID report buffers and debounce tables, and the 49-ball WLCSP fits inside the cable-end molded plastic of a typical mouse.
Recommended
Industrial IoT Sensor Node
Industrial IoT endpoints benefit from the ATSAMG53G19A-UUT's -40 C to +85 C industrial temperature rating and its 12-bit ADC for direct bridge sensor or 4-20 mA interface signal conditioning. The Cortex-M4F executes DSP-based filtering and predictive maintenance algorithms before transmitting aggregated data over SPI to a companion wireless radio. Its 1.62-3.6 V supply supports 2x AA or Li-SOCl2 primary cells commonly used in remote industrial monitoring where battery life may exceed five years.
Recommended
Smart Home Connected Sensor Module
Smart-home sensor modules for leak, motion, or air-quality detection deploy the ATSAMG53G19A-UUT as a low-power host that runs event-classification logic locally before waking a BLE or sub-GHz radio via SPI. The 512 KB Flash holds wireless stacks, OTA bootloader, and application code, while 96 KB SRAM supports TLS handshake scratchpads. SleepWalking peripherals keep quiescent current under 5 uA so a CR2032 cell can power multi-year deployments in a thermostat or water-leak detector.
Recommended
Low-Power Wearable Audio Accessory
True Wireless Stereo earbuds and hearable accessories use the ATSAMG53G19A-UUT to manage BLE pairing, button input, battery charging state, and basic audio routing. The Cortex-M4F runs DSP routines for ambient noise sampling and adaptive transparency mode, while the integrated 12-bit ADC monitors battery voltage and charging current. Its 49-ball WLCSP at 2.93 x 3.13 mm fits inside an earbud mainboard next to the audio SoC, reducing overall BOM area.
Recommended
Battery-Operated Data Logger
Portable data loggers for cold-chain, agricultural, or environmental monitoring rely on the ATSAMG53G19A-UUT's low active current and SleepWalking peripherals to wake only when sensors cross thresholds. The 512 KB Flash stores months of compressed measurement history, and the 12-bit ADC plus SERCOM channels interface to multiple I2C temperature/humidity sensors. The 1.62-3.6 V supply accepts 2x AA alkaline cells directly, while deep-sleep current in the single-digit microamp range extends unattended deployments beyond a year.
Recommended
Recommended Products Summary
Engineering reference data for ATSAMG53G19A-UUT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAMG53J19A-UUT | ATSAMG53J19B-UUT | ATSAMG53J19C-UUT | ATSAMG53J19D-UUT |
|---|---|---|---|---|---|
| Package | 49-ball WLCSP | 49-ball WLCSP - same | 49-ball WLCSP - same | 49-ball WLCSP - same | 49-ball WLCSP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | ARM Cortex-M4F | ARM Cortex-M4F | ARM Cortex-M4F | ARM Cortex-M4F | ARM Cortex-M4F |
| Maximum Clock | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Supply Voltage | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Key Differentiators
- Smallest-footprint SAM G53 in 49-ball WLCSP (vs ATSAMD51J19A-MU)
- Lower active current via SleepWalking peripherals (vs ATSAME70Q21B-CN)
- Integrated USB 2.0 Full-Speed with on-chip transceiver (vs ATSAMG53J19A-UUT (same-family))
Design Notes
The 49-ball WLCSP requires precise PCB land pattern design per Microchip's WLCSP application note. Use non-solder-mask-defined (NSMD) pads with a 0.27 mm ball pitch and 0.30 mm pad diameter to ensure reliable reflow. Place a 100 nF X7R 0402 decoupling capacitor adjacent to every VDDIO/VDDCORE ball, plus one bulk 4.7 uF near the package. Keep the high-speed USB 90-ohm differential pair matched within 150 mil length mismatch to preserve USB Full-Speed signal integrity.
Power the ATSAMG53G19A-UUT from a clean 1.62-3.6 V rail; place a ferrite bead or pi-filter between the battery and the MCU VDDIO pin if a switching regulator shares the rail. Configure unused GPIO balls as inputs with internal pull-up enabled to minimize leakage. Use SleepWalking mode and the on-chip RTC to schedule periodic wakeups instead of leaving peripherals clocked; deep-sleep current typically falls below 5 uA in properly configured designs.
Avoid routing analog ADC inputs next to high-speed USB or SERCOM signals to prevent crosstalk. Program Flash via SWD using a J-Link, MPLAB ICD 4, or Atmel-ICE rather than parallel programming to reduce fixture cost. Do not exceed 3.6 V on any pin; the SAM G53 is not 5 V tolerant. Verify the BSP peripheral mapping in ASF/MPLAB Harmony before locking the pinout, since SERCOM multiplexing can shift function assignments across silicon revisions.
Compliance Information
RoHS and REACH compliance per Microchip product page. Not AEC-Q100 qualified - SAM G53 family is targeted at industrial and consumer applications, not automotive.
