ATSAMD20J15B-MUT - 48MHz Cortex-M0+ MCU, 32KB Flash | Microchip
Teilenummer: ATSAMD20J15B-MUT ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $2.98 | $2,98 |
| 10 | $2.68 | $26,80 |
| 100 | $2.38 | $238,00 |
| 500 | $2.1 | $1.050,00 |
| 1.000 | $1.85 | $1.850,00 |
ATSAMD20J15B-MUT Übersicht
What is an ARM Cortex-M0+ microcontroller? It is the most energy-efficient member of the ARM Cortex-M processor family, designed for low-cost, low-power embedded applications. The Cortex-M0+ core sits within the broader taxonomy of microcontrollers (MCU) -> embedded processors -> semiconductors. The SAM D20 family is a low-power, high-performance line of M0+ MCUs from Microchip (formerly Atmel), popular for general-purpose embedded designs.
Key features include a 32KB in-system programmable Flash with ECC, 4KB SRAM, an 8-channel Event System for inter-peripheral signalling, a 12-bit 350ksps ADC with up to 20 analog channels, and a full-speed USB 2.0 device interface. The SERCOM (Serial Communication Interface) module provides up to six configurable I2C/SPI/UART interfaces, and the device supports 1.62V to 3.63V core and I/O operation. Six 16-bit Timer/Counters (TC), a 32-bit Real-Time Counter, and a Peripheral Touch Controller (PTC) supporting capacitive touch sensing round out the peripheral complement.
At the architecture level, the SAM D20 uses a single-cycle hardware multiplier, Microchip's proprietary SleepWalking technology for peripheral-level power gating, and an integrated Power Management Unit (PMU) with Buck/LDO modes. This yields Active mode currents of approximately 70 uA/MHz and Sleep modes down to a few microamps, making it competitive with other low-power M0+ MCUs.
Typical applications include home automation, IoT sensor nodes, smart metering, consumer electronics, industrial sensor hubs, and capacitive touch user interfaces. The wide operating voltage range and low-power SleepWalking peripherals make it especially suitable for battery-powered devices.
When designing, note that the 64-pin VQFN-EP (9x9) package requires careful PCB thermal pad soldering for proper operation. Decoupling should include 100nF + bulk capacitance close to each supply pin per Microchip's hardware design guidelines.
Drop-in-Alternativen für ATSAMD20J15B-MUT – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit ATSAMD20J15B-MUT (gleiche Bauform und Footprint) – abweichend in ADC, Package, RoHS Status, DAC, SERCOM Modules.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
ATSAMD20J15B-MU
✅ Drop-In✓ Auf Lager
$1.55 / Stück
Datenblatt ansehen →ATSAMD20J15A-MU
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
ATSAMD20J15A-CU
✅ Drop-In✓ Auf Lager
$2.05 / Stück
Datenblatt ansehen →ATSAMD20J14B-MU
✅ Drop-In✓ Auf Lager
$2.05 / Stück
Datenblatt ansehen →ATSAMD20G16B-MU
✅ Drop-In✓ Auf Lager
$1.92 / Stück
Datenblatt ansehen →ATSAMD20E16B-MU
✅ Drop-In✓ Auf Lager
$1.95 / Stück
Datenblatt ansehen →ATSAMD20J15B-MUT Grenzwerte & elektrische Eigenschaften
| Core Architecture | ARM Cortex-M0+ (32-bit) |
| Maximale Taktfrequenz | 48 MHz |
| Program Flash Memory | 32 KB (32K x 8) |
| SRAM | 4 KB |
| Operating Voltage Range | 1.62 V to 3.63 V |
| Betriebstemperaturbereich | -40 C to +85 C (Industrial) |
| Package Type | 64-VQFN with Exposed Pad (9x9 mm) |
| ADC | 12-bit, up to 350 ksps |
| SERCOM Modules | Up to 6 (configurable I2C/SPI/UART) |
| USB Interface | USB 2.0 Full-Speed Device |
| Touch Sensing (PTC) | Supported (Peripheral Touch Controller) |
| Event System Channels | 8 |
| Montageart | Surface Mount (Tape & Reel) |
| RoHS-Status | Compliant (Green / lead-free) |
ATSAMD20J15B-MUT Pin-Konfiguration
| Pin 1 | PB11 — General-purpose IO / PTC TX line |
| Pin 2 | PB10 — General-purpose IO / PTC TX line |
| Pin 3 | PB09 — General-purpose IO / PTC TX line |
| Pin 4 | PB08 — General-purpose IO / PTC TX line |
| Pin 5 | PA27 — General-purpose IO / I2S SDO |
| Pin 6 | PA28 — General-purpose IO / I2S SDI |
| Pin 7 | VSS — Ground reference |
| Pin 8 | VDDIO — I/O supply voltage input |
| Pin 9 | VDDIN — Voltage regulator input supply |
| Pin 10 | VDDCORE — Decoupling pin for internal core regulator |
| Pin 11 | PA30 — General-purpose IO / SWCLK |
| Pin 12 | PA31 — General-purpose IO / SWDIO |
| Pin 13 | PB22 — General-purpose IO |
| Pin 14 | PB23 — General-purpose IO / SERCOM RX |
| Pin 15 | PA00 — General-purpose IO / XIN |
| Pin 16 | PA01 — General-purpose IO / XOUT |
| Pin 17 | GND — Ground (also analog ground reference) |
| Pin 18 | PA02 — ADC AIN0 input |
| Pin 19 | PA03 — ADC AIN1 input |
| Pin 20 | PA04 — ADC AIN2 / VREF reference |
| Pin 21 | PA05 — ADC AIN3 input |
| Pin 22 | PA06 — ADC AIN4 input |
| Pin 23 | PA07 — ADC AIN5 input |
| Pin 24 | PA08 — ADC AIN6 / SERCOM PAD0 |
| Pin 25 | PA09 — ADC AIN7 / SERCOM PAD1 |
| Pin 26 | PA10 — ADC AIN8 / SERCOM PAD2 |
| Pin 27 | PA11 — ADC AIN9 / SERCOM PAD3 |
| Pin 28 | VSS — Ground |
| Pin 29 | VDDIO — I/O supply |
| Pin 30 | VDDIN — Regulator input supply |
| Pin 31 | PA12 — General-purpose IO / SERCOM PAD0 |
| Pin 32 | PA13 — General-purpose IO / SERCOM PAD1 |
| Pin 33 | PA14 — General-purpose IO / SERCOM PAD2 |
| Pin 34 | PA15 — General-purpose IO / SERCOM PAD3 |
| Pin 35 | PA16 — SERCOM / I2S MCLK |
| Pin 36 | PA17 — SERCOM / I2S FS |
| Pin 37 | PA18 — SERCOM / I2S BCLK |
| Pin 38 | PA19 — SERCOM / I2S SDO |
| Pin 39 | PB10 — General-purpose IO / SERCOM |
| Pin 40 | PB11 — General-purpose IO / SERCOM |
| Pin 41 | PB12 — General-purpose IO / TC |
| Pin 42 | PB13 — General-purpose IO / TC |
| Pin 43 | PB14 — General-purpose IO / TC |
| Pin 44 | PB15 — General-purpose IO / TC |
| Pin 45 | PA20 — USB D- (DM) data line |
| Pin 46 | PA21 — USB D+ (DP) data line |
| Pin 47 | PA22 — General-purpose IO / SERCOM |
| Pin 48 | PA23 — General-purpose IO / SERCOM |
| Pin 49 | PA24 — USB VBUS detect (or general IO) |
| Pin 50 | PA25 — USB ID / general-purpose IO |
| Pin 51 | VSS — Ground |
| Pin 52 | VDDIO — I/O supply |
| Pin 53 | VSS — Ground |
| Pin 54 | VDDIO — I/O supply |
| Pin 55 | PB16 — General-purpose IO / SERCOM |
| Pin 56 | PB17 — General-purpose IO / SERCOM |
| Pin 57 | PB18 — General-purpose IO / TC |
| Pin 58 | PB19 — General-purpose IO / TC |
| Pin 59 | PB20 — General-purpose IO / TC |
| Pin 60 | PB21 — General-purpose IO / TC |
| Pin 61 | PA26 — General-purpose IO / NMI |
| Pin 62 | NRST — Active-low reset input |
| Pin 63 | VSS — Ground |
| Pin 64 | VDDIN — Regulator input supply |
Typische Anwendungen
ATSAMD20J15B-MUT ist geeignet für 6 Anwendungs: Home Automation and IoT Sensor Nodes, Capacitive Touch User Interface, USB HID Devices (Keyboard/Mouse/Gamepad), Smart Metering and Energy Monitoring, Industrial Sensor Hub and Condition Monitoring, Consumer Wearable Electronics.
Home Automation and IoT Sensor Nodes
The ATSAMD20J15B-MUT's Cortex-M0+ core at 48MHz with 32KB Flash is well-suited for wireless sensor nodes in home automation. The 4KB SRAM comfortably holds application code and TLS-DTLS lite stacks when paired with ATWINC1500 or RN4871 modules. Its 1.62V-3.63V operating range allows direct connection to a single CR2032 or two AA cells, and SleepWalking peripherals consume as little as a few microamps between measurements - extending battery life to 1-3 years typical duty cycle.
Empfohlen
Capacitive Touch User Interface
With its integrated Peripheral Touch Controller (PTC), the ATSAMD20J15B-MUT supports hardware-accelerated capacitive touch sensing through self- and mutual-capacitance modes. The 12-bit ADC and up to 6 SERCOM interfaces handle additional slider/wheel sensing and drive feedback LEDs or haptic actuators. The 32KB Flash comfortably fits Microchip's QTouch library plus custom UI logic for appliances, lighting controls, and small appliances needing 4-12 touch buttons without external touch ICs.
Empfohlen
USB HID Devices (Keyboard/Mouse/Gamepad)
The on-chip USB 2.0 Full-Speed Device port lets the ATSAMD20J15B-MUT implement HID-class peripherals (keyboards, mice, gamepads, custom input devices) without external transceivers. The Cortex-M0+ at 48MHz is more than adequate for HID report generation at 1000Hz polling, leaving cycles for LED animation, matrix scanning, or wireless-link firmware. The 32KB Flash holds Microchip's USB stack plus HID report descriptors and application logic.
Empfohlen
Smart Metering and Energy Monitoring
For electricity/water/gas metering, the ATSAMD20J15B-MUT offers a 12-bit ADC with up to 20 analog channels, capable of sampling CT/PT-derived signals at the required metrology rates when paired with an external AFE. Its low-power Sleep modes (down to a few microamps) and wide operating temperature (-40C to +85C) suit outdoor metering installations. The 4KB SRAM is sufficient for time-series buffering before modem transmission, and SERCOM ports drive UART-modulated cellular or LoRa modules.
Empfohlen
Industrial Sensor Hub and Condition Monitoring
The 8-channel Event System on the ATSAMD20J15B-MUT allows peripherals to signal each other without CPU intervention, ideal for low-latency sensor aggregation in industrial condition-monitoring nodes (vibration, temperature, pressure). Combined with the 12-bit ADC and SERCOM expansion (I2C/SPI sensors), it forms a cost-effective sensor hub that can run anomaly-detection algorithms in 32KB Flash. Industrial temperature grade (-40C to +85C) is rated for factory-floor deployment.
Empfohlen
Consumer Wearable Electronics
Fitness bands, BLE beacons, and simple wearables benefit from the ATSAMD20J15B-MUT's small package (9x9 mm VQFN), low active current (~70 uA/MHz), and SERCOM-driven BLE link via companion modules. Its 32KB Flash holds Microchip's BLE stack plus heart-rate, step-count, and OLED-display routines. The PTC controller can also drive simple on-device capacitive touch buttons on the wearable chassis without extra hardware.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für ATSAMD20J15B-MUT – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | ATSAMD20J15B-MU | ATSAMD20J15A-MU | ATSAMD20J15A-CU | ATSAMD20J14B-MU | ATSAMD20G16B-MU | ATSAMD20E16B-MU |
|---|---|---|---|---|---|---|---|
| Package | VQFN-64 (9x9 mm) with EP | VQFN-64 (9x9 mm) with EP | VQFN-64 (9x9 mm) with EP | VQFN-64 (9x9 mm) with EP | VQFN-64 (9x9 mm) with EP | VQFN-64 (9x9 mm) with EP | VQFN-64 (9x9 mm) with EP |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ |
| Maximum Clock Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 16 KB (-50%) | 64 KB (+100%) | 64 KB (+100%) |
| SRAM | 4 KB | 4 KB | 4 KB | 4 KB | 2 KB (-50%) | 8 KB (+100%) | 8 KB (+100%) |
| Operating Voltage Range | 1.62 V to 3.63 V | 1.62 V to 3.63 V | 1.62 V to 3.63 V | 1.62 V to 3.63 V | 1.62 V to 3.63 V | 1.62 V to 3.63 V | 1.62 V to 3.63 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 | -40 C to +85 C | -40 C to +85 C |
| Silicon Revision | B | B | A | A | B | B | B |
| Packaging Form | Tape & Reel | Tray | Tray | Tray | Tray | Tray | Tray |
Wichtigste Unterscheidungsmerkmale
- Full-speed USB 2.0 device on-chip (vs. ATSAMD20J14B-MU)
- Capacitive touch (PTC) controller integrated (vs. PIC16F684-I/SL)
- 32-bit Cortex-M0+ core vs 8-bit PIC alternatives (vs. PIC16F677-I/SS)
Designhinweise
Solder the exposed thermal pad (pin 65/EP) of the ATSAMD20J15B-MUT to a continuous ground copper plane on the top layer. The Microchip hardware design guidelines (TB3070) recommend at least 4 thermal vias (0.3 mm drill) connecting the EP to inner-layer ground planes for proper thermal dissipation. Without proper EP soldering, the device may fail at elevated ambient temperatures due to higher junction-to-ambient thermal resistance.
Place one 100 nF 0402 ceramic decoupling capacitor as close as possible to each VDDIO pin (typically 4 instances on the 64-pin VQFN). Add a single 4.7 uF or 10 uF bulk capacitor at the VDDIN entry point. Per Microchip SAM D20 hardware guidance, VDDIN must be within 1.62V-3.63V; exceeding 3.63V will permanently damage the on-chip regulator.
Do not leave unused SERCOM pins floating if USB or external peripherals share the package footprint. Configure all unused I/O as input with internal pull-up enabled, or output low, in firmware to minimize Sleep-mode current consumption. Also, when migrating from ATSAMD20J15A (revision A) to the ATSAMD20J15B (revision B), review the latest errata document for any peripheral changes affecting your application code.
Compliance-Informationen
RoHS compliant per Microchip ATSAMD20J15 product page (Green / lead-free designation). Not AEC-Q100 qualified - automotive applications should consider ATSAMx70 or ATSAME70 automotive-grade families instead.
