ATSAMD20J15B-MUT - 48MHz Cortex-M0+ MCU, 32KB Flash | Microchip
Référence : ATSAMD20J15B-MUT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 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 Présentation
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.
Alternatives de remplacement direct pour ATSAMD20J15B-MUT — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec ATSAMD20J15B-MUT (même facteur de forme et même empreinte) — différant par ADC, Package, RoHS Status, DAC, SERCOM Modules.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATSAMD20J15B-MU
✅ Remplacement direct✓ En stock
$1.55 / unité
Voir la fiche technique →ATSAMD20J15A-MU
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATSAMD20J15A-CU
✅ Remplacement direct✓ En stock
$2.05 / unité
Voir la fiche technique →ATSAMD20J14B-MU
✅ Remplacement direct✓ En stock
$2.05 / unité
Voir la fiche technique →ATSAMD20G16B-MU
✅ Remplacement direct✓ En stock
$1.92 / unité
Voir la fiche technique →ATSAMD20E16B-MU
✅ Remplacement direct✓ En stock
$1.95 / unité
Voir la fiche technique →ATSAMD20J15B-MUT Valeurs maximales et caractéristiques électriques
| Core Architecture | ARM Cortex-M0+ (32-bit) |
| Fréquence d'horloge maximale | 48 MHz |
| Program Flash Memory | 32 KB (32K x 8) |
| SRAM | 4 KB |
| Operating Voltage Range | 1.62 V to 3.63 V |
| Plage de température de fonctionnement | -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 |
| Type de montage | Surface Mount (Tape & Reel) |
| Statut RoHS | Compliant (Green / lead-free) |
Configuration des broches de ATSAMD20J15B-MUT
| Broche 1 | PB11 — General-purpose IO / PTC TX line |
| Broche 2 | PB10 — General-purpose IO / PTC TX line |
| Broche 3 | PB09 — General-purpose IO / PTC TX line |
| Broche 4 | PB08 — General-purpose IO / PTC TX line |
| Broche 5 | PA27 — General-purpose IO / I2S SDO |
| Broche 6 | PA28 — General-purpose IO / I2S SDI |
| Broche 7 | VSS — Ground reference |
| Broche 8 | VDDIO — I/O supply voltage input |
| Broche 9 | VDDIN — Voltage regulator input supply |
| Broche 10 | VDDCORE — Decoupling pin for internal core regulator |
| Broche 11 | PA30 — General-purpose IO / SWCLK |
| Broche 12 | PA31 — General-purpose IO / SWDIO |
| Broche 13 | PB22 — General-purpose IO |
| Broche 14 | PB23 — General-purpose IO / SERCOM RX |
| Broche 15 | PA00 — General-purpose IO / XIN |
| Broche 16 | PA01 — General-purpose IO / XOUT |
| Broche 17 | GND — Ground (also analog ground reference) |
| Broche 18 | PA02 — ADC AIN0 input |
| Broche 19 | PA03 — ADC AIN1 input |
| Broche 20 | PA04 — ADC AIN2 / VREF reference |
| Broche 21 | PA05 — ADC AIN3 input |
| Broche 22 | PA06 — ADC AIN4 input |
| Broche 23 | PA07 — ADC AIN5 input |
| Broche 24 | PA08 — ADC AIN6 / SERCOM PAD0 |
| Broche 25 | PA09 — ADC AIN7 / SERCOM PAD1 |
| Broche 26 | PA10 — ADC AIN8 / SERCOM PAD2 |
| Broche 27 | PA11 — ADC AIN9 / SERCOM PAD3 |
| Broche 28 | VSS — Ground |
| Broche 29 | VDDIO — I/O supply |
| Broche 30 | VDDIN — Regulator input supply |
| Broche 31 | PA12 — General-purpose IO / SERCOM PAD0 |
| Broche 32 | PA13 — General-purpose IO / SERCOM PAD1 |
| Broche 33 | PA14 — General-purpose IO / SERCOM PAD2 |
| Broche 34 | PA15 — General-purpose IO / SERCOM PAD3 |
| Broche 35 | PA16 — SERCOM / I2S MCLK |
| Broche 36 | PA17 — SERCOM / I2S FS |
| Broche 37 | PA18 — SERCOM / I2S BCLK |
| Broche 38 | PA19 — SERCOM / I2S SDO |
| Broche 39 | PB10 — General-purpose IO / SERCOM |
| Broche 40 | PB11 — General-purpose IO / SERCOM |
| Broche 41 | PB12 — General-purpose IO / TC |
| Broche 42 | PB13 — General-purpose IO / TC |
| Broche 43 | PB14 — General-purpose IO / TC |
| Broche 44 | PB15 — General-purpose IO / TC |
| Broche 45 | PA20 — USB D- (DM) data line |
| Broche 46 | PA21 — USB D+ (DP) data line |
| Broche 47 | PA22 — General-purpose IO / SERCOM |
| Broche 48 | PA23 — General-purpose IO / SERCOM |
| Broche 49 | PA24 — USB VBUS detect (or general IO) |
| Broche 50 | PA25 — USB ID / general-purpose IO |
| Broche 51 | VSS — Ground |
| Broche 52 | VDDIO — I/O supply |
| Broche 53 | VSS — Ground |
| Broche 54 | VDDIO — I/O supply |
| Broche 55 | PB16 — General-purpose IO / SERCOM |
| Broche 56 | PB17 — General-purpose IO / SERCOM |
| Broche 57 | PB18 — General-purpose IO / TC |
| Broche 58 | PB19 — General-purpose IO / TC |
| Broche 59 | PB20 — General-purpose IO / TC |
| Broche 60 | PB21 — General-purpose IO / TC |
| Broche 61 | PA26 — General-purpose IO / NMI |
| Broche 62 | NRST — Active-low reset input |
| Broche 63 | VSS — Ground |
| Broche 64 | VDDIN — Regulator input supply |
Applications typiques
ATSAMD20J15B-MUT convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATSAMD20J15B-MUT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- 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)
Notes de conception
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.
Informations de conformité
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.
