ATSAMD20J16B-MN - 48MHz Cortex-M0+ MCU, 64KB Flash, 64-VQFN | Microchip
MPN: ATSAMD20J16B-MN ✓ فعالATSAMD20J16B-MN جائزہ
ARM Cortex-M0+ is the most energy-efficient 32-bit ARM processor core, designed for low-cost, low-power microcontrollers that replace legacy 8-bit and 16-bit MCUs while adding thumb/Thumb-2 instruction efficiency and a single-cycle 32x32 hardware multiplier. An MCU (microcontroller unit) is a compact system-on-chip integrating CPU, memory (Flash/SRAM), and peripherals (ADC, timers, communication buses) on a single die; the Cortex-M0+ line is positioned below Cortex-M3/M4 and aimed at cost-sensitive, deterministic applications where every microwatt matters.
Key features of the ATSAMD20J16B-MN include 64KB in-system-programmable Flash, 8KB SRAM, a 12-bit 350 ksps SAR ADC with up to 20 channels, a 10-bit 350 ksps DAC, six SERCOM channels reconfigurable as UART/SPI/I2C, a 256-channel Peripheral Touch Controller (PTC), and full-speed USB 2.0 device support. The 48 MHz Cortex-M0+ core, Sleepwalking peripherals, and a low-power RTC running from a 32 kHz crystal enable <1 µA typical standby current with RTC retention, making the part ideal for battery-powered edge devices.
Architecturally, the device uses a 2-layer AHB-Lite bus matrix connecting CPU, Flash, SRAM, and peripherals with deterministic zero-wait-state access from SRAM. Peripherals are mapped through a unified SERCOM block (each instance is software-configured into UART/SPI/I2C/SMBus), and the Event System allows DMA-free peripheral-to-peripheral signalling - both features reduce CPU load and active-mode current.
Typical applications include home automation endpoints, smart metering, consumer wearables, industrial sensor nodes, USB HID peripherals, and cap-touch user interfaces. The wide 1.62V-3.63V supply range and integrated PTC simplify single-cell Li-ion and 2x AA designs. Designers should review the SAM D20 silicon errata (per the manufacturer datasheet family documents) prior to free-up for production, particularly regarding SERCOM and ADC behaviour.
This page synthesises distributor pricing, same-family drop-in alternatives such as ATSAMD20J18B-MN and ATSAMD20J15B-MN, and practical design notes not found in the manufacturer datasheet.
کے لیے ڈراپ اِن متبادل ATSAMD20J16B-MN — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں ATSAMD20J16B-MN (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف ADC, Package, DAC, SRAM, MSL Level.
ATSAMD20J15B-MN
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہ📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
ATSAMD20J18B-MN
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
ATSAMD20G15A-MN
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ATSAMD20E16B-MN
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ATSAMD20J16B-MN
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ATSAMD20J16B-MN زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core | ARM Cortex-M0+ (32-bit) |
| زیادہ سے زیادہ کلاک فریکوئنسی | 48 MHz |
| Flash Memory | 64 KB |
| SRAM | 8 KB |
| Supply Voltage Range | 1.62 V to 3.63 V |
| آپریٹنگ درجہ حرارت رینج | -40 C to +105 C |
| ADC | 12-bit SAR, up to 20 channels, 350 ksps |
| DAC | 10-bit, 350 ksps |
| Communication Interfaces | 6x SERCOM (UART/SPI/I2C), 1x I2S, full-speed USB 2.0 Device |
| Timers/Counters | TC (8-bit/16-bit pair), TCC (16-bit), RTC, WDT |
| Peripheral Touch Controller (PTC) | 256 channels (mutual- and self-capacitance) |
| I/O Pins | Up to 52 GPIO |
| پیکیج | 64-pin VQFN (MN), 9x9 mm with exposed pad |
| ماؤنٹنگ ٹائپ | Surface Mount |
| MSL لیول | 3 (per JEDEC J-STD-020) |
| RoHS اسٹیٹس | Compliant |
| CoreMark/MHz | 2.46 |
ATSAMD20J16B-MN پن کنفیگریشن
| پن 1 | PA00 — GPIO / SERCOM1 PAD0 / TCC2 WO0 |
| پن 2 | PA01 — GPIO / SERCOM1 PAD1 / TCC2 WO1 |
| پن 3 | PA02 — GPIO / AIN0 / SERCOM0 PAD0 |
| پن 4 | PA03 — GPIO / AIN1 / DAC VOUT |
| پن 5 | PA04 — GPIO / AIN2 / SERCOM0 PAD2 |
| پن 6 | PA05 — GPIO / AIN3 / SERCOM0 PAD3 |
| پن 7 | PA06 — GPIO / AIN4 / SERCOM0 PAD0 |
| پن 8 | PA07 — GPIO / AIN5 / SERCOM0 PAD1 |
| پن 9 | VDDIO — Digital supply voltage |
| پن 10 | VSSIO — Digital ground |
| پن 11 | PA08 — GPIO / AIN6 / SERCOM2 PAD0 / I2S SCK |
| پن 12 | PA09 — GPIO / AIN7 / SERCOM2 PAD1 / I2S MCK |
| پن 13 | PA10 — GPIO / SERCOM2 PAD2 / TCC0 WO0 |
| پن 14 | PA11 — GPIO / SERCOM2 PAD3 / TCC0 WO1 |
| پن 15 | PA12 — GPIO / SERCOM4 PAD0 / TCC1 WO2 |
| پن 16 | PA13 — GPIO / SERCOM4 PAD1 / TCC1 WO3 |
| پن 17 | PA14 — GPIO / SERCOM4 PAD2 / TCC0 WO2 |
| پن 18 | PA15 — GPIO / SERCOM4 PAD3 / TCC0 WO3 |
| پن 19 | PA16 — GPIO / SERCOM1 PAD0 / TCC2 WO0 |
| پن 20 | PA17 — GPIO / SERCOM1 PAD1 / TCC2 WO1 |
| پن 21 | PA18 — GPIO / SERCOM1 PAD2 / TC3 WO0 |
| پن 22 | PA19 — GPIO / SERCOM1 PAD3 / TC3 WO1 |
| پن 23 | PA20 — GPIO / SERCOM3 PAD0 / TC4 WO0 |
| پن 24 | PA21 — GPIO / SERCOM3 PAD1 / TC4 WO1 |
| پن 25 | PA22 — GPIO / SERCOM3 PAD2 / TC5 WO0 |
| پن 26 | PA23 — GPIO / SERCOM3 PAD3 / TC5 WO1 |
| پن 27 | PA24 — GPIO / SERCOM5 PAD0 / USB D- |
| پن 28 | PA25 — GPIO / SERCOM5 PAD1 / USB D+ |
| پن 29 | PA26 — GPIO / SERCOM5 PAD2 |
| پن 30 | PA27 — GPIO / SERCOM5 PAD3 |
| پن 31 | PA28 — GPIO / SERCOM5 PAD0 / TC6 WO0 |
| پن 32 | PA29 — GPIO / SERCOM5 PAD1 / TC6 WO1 |
| پن 33 | PA30 — GPIO / SERCOM1 PAD2 / TCC1 WO0 |
| پن 34 | PA31 — GPIO / SERCOM1 PAD3 / TCC1 WO1 |
| پن 35 | VDDIO — Digital supply voltage |
| پن 36 | VSSIO — Digital ground |
| پن 37 | PB00 — GPIO / AIN8 / SERCOM5 PAD2 |
| پن 38 | PB01 — GPIO / AIN9 / SERCOM5 PAD3 |
| پن 39 | PB02 — GPIO / AIN10 / SERCOM5 PAD0 |
| پن 40 | PB03 — GPIO / AIN11 / SERCOM5 PAD1 |
| پن 41 | PB04 — GPIO / AIN12 / SERCOM4 PAD0 |
| پن 42 | PB05 — GPIO / AIN13 / SERCOM4 PAD1 |
| پن 43 | PB06 — GPIO / AIN14 / SERCOM4 PAD2 |
| پن 44 | PB07 — GPIO / AIN15 / SERCOM4 PAD3 |
| پن 45 | PB08 — GPIO / SERCOM4 PAD0 / TC4 WO0 |
| پن 46 | PB09 — GPIO / SERCOM4 PAD1 / TC4 WO1 |
| پن 47 | PB10 — GPIO / SERCOM4 PAD2 / TC5 WO0 |
| پن 48 | PB11 — GPIO / SERCOM4 PAD3 / TC5 WO1 |
| پن 49 | PB12 — GPIO / SERCOM4 PAD0 / TC0 WO0 |
| پن 50 | PB13 — GPIO / SERCOM4 PAD1 / TC0 WO1 |
| پن 51 | PB14 — GPIO / SERCOM4 PAD2 / TC1 WO0 |
| پن 52 | PB15 — GPIO / SERCOM4 PAD3 / TC1 WO1 |
| پن 53 | PB16 — GPIO / SERCOM5 PAD0 / TCC0 WO4 |
| پن 54 | PB17 — GPIO / SERCOM5 PAD1 / TCC0 WO5 |
| پن 55 | PB18 — GPIO / SERCOM5 PAD2 / TCC0 WO6 |
| پن 56 | PB19 — GPIO / SERCOM5 PAD3 / TCC0 WO7 |
| پن 57 | PB20 — GPIO / SERCOM3 PAD0 / TC7 WO0 |
| پن 58 | PB21 — GPIO / SERCOM3 PAD1 / TC7 WO1 |
| پن 59 | VSW — DC-DC switching node |
| پن 60 | VDDANA — Analog supply (1.62-3.63 V) |
| پن 61 | VSSA — Analog ground |
| پن 62 | VDDIO — Digital supply voltage |
| پن 63 | VSSIO — Digital ground |
| پن 64 | GND — Exposed thermal pad - tie to VSS |
عام استعمالات
ATSAMD20J16B-MN کے لیے موزوں ہے 6 ایپلیکیشنs: Home Automation Endpoints, Smart Metering & Energy Measurement, Consumer Wearables, Industrial Sensor Nodes, USB HID Peripherals, Cap-Touch User Interfaces.
Home Automation Endpoints
The ATSAMD20J16B-MN's 48 MHz Cortex-M0+ core, 64 KB Flash and 8 KB SRAM comfortably run Z-Wave, Zigbee or Matter bridge stacks for cost-sensitive home-automation endpoints. The 6 reconfigurable SERCOM blocks map UART/SPI/I2C peripherals required for sensor hubs, level translators, and wireless radio transceivers. The 12-bit 350 ksps ADC delivers 20 channels of low-rate sensor acquisition - sufficient for temperature, humidity and PIR occupancy inputs. With 1.62V to 3.63V supply and SleepWalking peripherals, the part draws microamperes during quiescent monitoring, enabling multi-year battery life on 2x AA cells.
تجویز کردہ
Smart Metering & Energy Measurement
In single-phase electricity, water, or gas meters the ATSAMD20J16B-MN integrates 12-bit ADC sampling for load-current input, 10-bit DAC for analogue loops, and RTC with calendar mode for time-of-use billing. The Cortex-M0+ core reaches 2.46 CoreMark/MHz - sufficient for DLMS/COSEM or ANSI C12.18 stack execution within the 64 KB Flash budget. The 1.62V-3.63V range lets the meter share a 3.6V battery-backed supercapacitor supply with the radio module, simplifying PMIC design. Sleep modes reduce quiescent current below 5 µA for compliance with battery-free metrology nodes.
تجویز کردہ
Consumer Wearables
Wearable bands and fitness trackers prioritise long battery life over raw MHz, which is why the ATSAMD20J16B-MN is a strong choice: the SleepWalking Event System triggers the ADC/PTC from sensor thresholds without waking the CPU, holding deep-sleep current below 1 µA. The 256-channel Peripheral Touch Controller (PTC) enables mutual-capacitance swipe and tap gestures directly on the wearable enclosure, reducing external switch count. USB 2.0 full-speed device support simplifies firmware upgrades over the cradle connector without an external PHY. The 64-VQFN MN fits beneath typical 30 mm x 30 mm wearable PCBs.
تجویز کردہ
Industrial Sensor Nodes
The -40 C to +105 C operating range makes the ATSAMD20J16B-MN attractive for industrial 4-20 mA loop nodes and condition-monitoring endpoints. SPI-driven sensors (accelerometers, pressure) reach via the SERCOM reconfigurable blocks, while the 12-bit 350 ksps SAR ADC can digitise vibration or strain signals at full bandwidth. With the Event System routing ADC-completed pulses to the DMA-less SERCOM FIFO, the Cortex-M0+ core stays asleep while sampling 10 kHz vibration streams. Industrial protocols (IO-Link, Modbus RTU) fit in the 64 KB Flash, and the small 9x9 mm QFN eases PCB integration into IP65 enclosures.
تجویز کردہ
USB HID Peripherals
Built-in USB 2.0 full-speed device with on-chip pull-ups and voltage regulator support allows the ATSAMD20J16B-MN to act as a HID class device with minimal external components - ideal for keyboards, mice, gaming controllers, and custom HMIs. The 48 MHz core handles USB polling and HID report generation while spare SERCOM channels drive RGB LED arrays via WS2812-style bit-banging at 800 kHz. The 64-pin VQFN provides ample GPIO for matrix-scanned key arrays, rotary encoders, and analog thumbsticks. Firmware is updatable over USB using the SAM-BA bootloader stored in protected Flash.
تجویز کردہ
Cap-Touch User Interfaces
The integrated 256-channel Peripheral Touch Controller (PTC) supports both mutual- and self-capacitance sensing - enabling flush, water-tolerant touch buttons, sliders, and wheels under glass or acrylic. The Event System wakes the Cortex-M0+ only on a qualified touch, holding deep-sleep current below 1 µA between touches. The 64 KB Flash is sufficient to run Microchip's 2D Touch Library along with a lightweight GUI / LED feedback loop, while the 12-bit SAR ADC digitises an analog front-end (proximity, force) in parallel. PTC acquisition combined with a low-noise LDO on the analog rail produces stable mTouch performance across industrial temperature ranges.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا ATSAMD20J16B-MN — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | ATSAMD20J15B-MN | ATSAMD20J18B-MN | ATSAMD20G15A-MN |
|---|---|---|---|---|
| Package | 64-VQFN (MN) 9x9 mm | 64-VQFN (MN) 9x9 mm - identical | 64-VQFN (MN) 9x9 mm - identical | 64-VQFN (MN) 9x9 mm - identical |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | Cortex-M0+ @ 48 MHz | Cortex-M0+ @ 48 MHz | Cortex-M0+ @ 48 MHz | Cortex-M0+ @ 48 MHz |
| Flash | 64 KB | 32 KB (-50%) | 256 KB (+300%) | 32 KB (-50%) |
| SRAM | 8 KB | 4 KB (-50%) | 32 KB (+300%) | 4 KB (-50%) |
| USB Device | Yes (full-speed) | Yes (full-speed) | Yes (full-speed) | No (-) |
| SERCOM Channels | 6 | 6 | 6 | up to 6 (fewer GPIO-bound) |
| Operating Voltage | 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 +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C |
اہم امتیازی خصوصیات
- Drop-in Flash ladder in the same 64-VQFN MN footprint (بمقابلہATSAMD20J15B-MN / ATSAMD20J18B-MN)
- Full-speed USB 2.0 device on-chip with no external PHY (بمقابلہATSAMD20G15A-MN)
- 256-channel PTC for low-power capacitive touch (بمقابلہSAM C20/SAM D21)
- Pin-compatible Cortex-M0+ upgrade path within SAM D20 family (بمقابلہGeneric Cortex-M0+ competitors)
ڈیزائن نوٹس
When the USB peripheral is enabled, a 3.3V regulator capable of sourcing 100 mA is required on the VDDIO rail, since the internal 3.3V LDO typically draws load from VBUS and VDDIO simultaneously. Use a low-Iq LDO such as MCP1700 to extend battery life when USB is disabled. Decouple each VDDIO pin with 100 nF ceramic; add a 4.7 µF bulk capacitor near the analog VDDANA pin for SAR ADC reference stability.
Estimated: At 48 MHz execution from internal Flash and all GPIO toggling, the SAM D20 draws approximately 7-9 mA active. Power dissipation under continuous full-speed execution is roughly P = VDD * IDD ≈ 3.3V x 8 mA = 26 mW. With theta_JA of approximately 31 C/W on a 4-layer 2 oz copper PCB, junction temperature rise above 25 C ambient is ~0.8 C. The exposed pad (pin 64) MUST be soldered to the ground plane to meet this thermal path; failing to solder the e-pad can double the junction temperature during continuous full-load operation.
Route the SERCOM lines in adjacent pairs (e.g., PA08/PA09) so that 3.3V SPI or I2C signals share a 50 ohm characteristic impedance path on the top layer. Place the 32 kHz crystal (XIN32/XOUT32) within 5 mm of the dedicated pins (PB00/PB01) with trace guard via fencing, since crystal-related leakage paths are a frequent cause of RTC drift. Keep the AREF pin decoupling within 3 mm and analog traces away from the SERCOM and PWM switching lines to avoid coupling into the SAR ADC.
Do not enable the USB peripheral before the regulator settles - the VDDIO rail must be at least 3.0V before asserting VBUS sensing. Watch out for the ADC reference buffer on-chip: leaving REFCTRL.REFSEL set to 'INTREF' on first power-up can cause a 1-mA quiescent step. Finally, the brown-out detector (BOD) at 1.55V minimum must be enabled in NVM, otherwise writes to Flash during a brown-out condition can corrupt the underlying user row.
تعمیل کی معلومات
RoHS/REACH compliance per the Microchip environmental information page. AEC-Q100 is not_applicable for the standard 'B-MN' part (look for automotive-grade SAM D20 with 'A' or 'E' suffix). Lead-free and halogen-free per the BOM material declaration. Conflict-minerals statement published by Microchip annually.
