ATSAMD20J15B-MUT - 48MHz Cortex-M0+ MCU, 32KB Flash | Microchip
MPN: ATSAMD20J15B-MUT ✓ AktifATSAMD20J15B-MUT Ringkasan
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.
Alternatif penggantian untuk ATSAMD20J15B-MUT — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian ATSAMD20J15B-MUT (sama faktor bentuk dan footprint) — berbeda di dalam ADC, Package, RoHS Status, DAC, SERCOM Modules.
ATSAMD20J15B-MU
✅ Drop-InKontak untuk harga
Lihat Datasheet →ATSAMD20J15A-MU
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
ATSAMD20J15A-CU
✅ Drop-InKontak untuk harga
Lihat Datasheet →ATSAMD20J14B-MU
✅ Drop-InKontak untuk harga
Lihat Datasheet →ATSAMD20G16B-MU
✅ Drop-InKontak untuk harga
Lihat Datasheet →ATSAMD20E16B-MU
✅ Drop-InKontak untuk harga
Lihat Datasheet →ATSAMD20J15B-MUT Rating Maksimal & Karakteristik Listrik
| Core Architecture | ARM Cortex-M0+ (32-bit) |
| Frekuensi Bawah Maximum | 48 MHz |
| Program Flash Memory | 32 KB (32K x 8) |
| SRAM | 4 KB |
| Operating Voltage Range | 1.62 V to 3.63 V |
| Rentang Suhu Kerja | -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 |
| Tipe Mounting | Surface Mount (Tape & Reel) |
| Status RoHS | Compliant (Green / lead-free) |
Konfigurasi Pin ATSAMD20J15B-MUT
| Pin produk 1 | PB11 — General-purpose IO / PTC TX line |
| Pin produk 2 | PB10 — General-purpose IO / PTC TX line |
| Pin produk 3 | PB09 — General-purpose IO / PTC TX line |
| Pin produk 4 | PB08 — General-purpose IO / PTC TX line |
| Pin produk 5 | PA27 — General-purpose IO / I2S SDO |
| Pin produk 6 | PA28 — General-purpose IO / I2S SDI |
| Pin produk 7 | VSS — Ground reference |
| Pin produk 8 | VDDIO — I/O supply voltage input |
| Pin produk 9 | VDDIN — Voltage regulator input supply |
| Pin produk 10 | VDDCORE — Decoupling pin for internal core regulator |
| Pin produk 11 | PA30 — General-purpose IO / SWCLK |
| Pin produk 12 | PA31 — General-purpose IO / SWDIO |
| Pin produk 13 | PB22 — General-purpose IO |
| Pin produk 14 | PB23 — General-purpose IO / SERCOM RX |
| Pin produk 15 | PA00 — General-purpose IO / XIN |
| Pin produk 16 | PA01 — General-purpose IO / XOUT |
| Pin produk 17 | GND — Ground (also analog ground reference) |
| Pin produk 18 | PA02 — ADC AIN0 input |
| Pin produk 19 | PA03 — ADC AIN1 input |
| Pin produk 20 | PA04 — ADC AIN2 / VREF reference |
| Pin produk 21 | PA05 — ADC AIN3 input |
| Pin produk 22 | PA06 — ADC AIN4 input |
| Pin produk 23 | PA07 — ADC AIN5 input |
| Pin produk 24 | PA08 — ADC AIN6 / SERCOM PAD0 |
| Pin produk 25 | PA09 — ADC AIN7 / SERCOM PAD1 |
| Pin produk 26 | PA10 — ADC AIN8 / SERCOM PAD2 |
| Pin produk 27 | PA11 — ADC AIN9 / SERCOM PAD3 |
| Pin produk 28 | VSS — Ground |
| Pin produk 29 | VDDIO — I/O supply |
| Pin produk 30 | VDDIN — Regulator input supply |
| Pin produk 31 | PA12 — General-purpose IO / SERCOM PAD0 |
| Pin produk 32 | PA13 — General-purpose IO / SERCOM PAD1 |
| Pin produk 33 | PA14 — General-purpose IO / SERCOM PAD2 |
| Pin produk 34 | PA15 — General-purpose IO / SERCOM PAD3 |
| Pin produk 35 | PA16 — SERCOM / I2S MCLK |
| Pin produk 36 | PA17 — SERCOM / I2S FS |
| Pin produk 37 | PA18 — SERCOM / I2S BCLK |
| Pin produk 38 | PA19 — SERCOM / I2S SDO |
| Pin produk 39 | PB10 — General-purpose IO / SERCOM |
| Pin produk 40 | PB11 — General-purpose IO / SERCOM |
| Pin produk 41 | PB12 — General-purpose IO / TC |
| Pin produk 42 | PB13 — General-purpose IO / TC |
| Pin produk 43 | PB14 — General-purpose IO / TC |
| Pin produk 44 | PB15 — General-purpose IO / TC |
| Pin produk 45 | PA20 — USB D- (DM) data line |
| Pin produk 46 | PA21 — USB D+ (DP) data line |
| Pin produk 47 | PA22 — General-purpose IO / SERCOM |
| Pin produk 48 | PA23 — General-purpose IO / SERCOM |
| Pin produk 49 | PA24 — USB VBUS detect (or general IO) |
| Pin produk 50 | PA25 — USB ID / general-purpose IO |
| Pin produk 51 | VSS — Ground |
| Pin produk 52 | VDDIO — I/O supply |
| Pin produk 53 | VSS — Ground |
| Pin produk 54 | VDDIO — I/O supply |
| Pin produk 55 | PB16 — General-purpose IO / SERCOM |
| Pin produk 56 | PB17 — General-purpose IO / SERCOM |
| Pin produk 57 | PB18 — General-purpose IO / TC |
| Pin produk 58 | PB19 — General-purpose IO / TC |
| Pin produk 59 | PB20 — General-purpose IO / TC |
| Pin produk 60 | PB21 — General-purpose IO / TC |
| Pin produk 61 | PA26 — General-purpose IO / NMI |
| Pin produk 62 | NRST — Active-low reset input |
| Pin produk 63 | VSS — Ground |
| Pin produk 64 | VDDIN — Regulator input supply |
Aplikasi Umum
ATSAMD20J15B-MUT cocok untuk 6 aplikasis: 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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk ATSAMD20J15B-MUT — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | 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 |
Diferensiator Kunci
- Full-speed USB 2.0 device on-chip (vsATSAMD20J14B-MU)
- Capacitive touch (PTC) controller integrated (vsPIC16F684-I/SL)
- 32-bit Cortex-M0+ core vs 8-bit PIC alternatives (vsPIC16F677-I/SS)
Catatan Desain
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.
Informasi Konformitas
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.
