ATSAMC20J18A-ANTS2 - 48MHz ARM Cortex-M0+ MCU, 256KB Flash | Microchip
Teilenummer: ATSAMC20J18A-ANTS2 ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $4.14 | $4,14 |
| 10 | $3.78 | $37,80 |
| 100 | $3.42 | $342,00 |
| 500 | $3.05 | $1.525,00 |
| 1.000 | $2.71 | $2.710,00 |
ATSAMC20J18A-ANTS2 Übersicht
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O into one package. The SAM C20 specifically uses the Cortex-M0+ core, the most energy-efficient member of the Cortex-M family. It sits within the wider hierarchy of microcontrollers -> embedded processors -> semiconductors, and is optimized for deterministic real-time control, low-power sleep modes, and small-footprint code generation with the Arm Thumb-2 instruction set.
Key features of the ATSAMC20J18A-ANTS2 include the Cortex-M0+ core running up to 48MHz (2.46 CoreMark/MHz), 256KB embedded Flash, 32KB SRAM, a 12-bit 1Msps ADC, configurable SERCOM peripherals, full-speed USB 2.0 device on selected pins, and an Event System for hardware-triggered peripheral interactions without CPU involvement. Operating voltage is 2.7V to 5.5V, and the device is qualified for industrial temperature ranges up to 105°C, making it suitable for harsh environments.
The device is built on a low-power CMOS process and integrates multiple power domains that allow selective peripheral shutdown to minimize active and idle current. The Event System and SleepWalking peripherals enable autonomous data acquisition and GPIO wake-up events without full CPU engagement, which is critical for battery-backed sensor nodes and Energy Harvesting designs.
Typical applications include industrial sensor transmitters, HVAC and appliance control boards, building automation, smart metering, low-cost USB peripherals, motor control FOC companion MCUs, and 5V-tolerant retrofit designs replacing older 8/16-bit MCUs. The combination of high-accuracy internal RC oscillator and 5V I/O tolerance simplifies bill-of-materials by removing external crystals and level shifters.
When designing with the ATSAMC20J18A-ANTS2, pay attention to decoupling (place 100nF + 1µF ceramics close to each VDD pin pair), trace the D+ and D+ USB lines as a 90Ω differential pair if USB is used, and verify that your debugger/programmer (e.g., Atmel-ICE, MPLAB Snap, PICkit 4) supports the SWD interface used by SAM C20 devices.
This page synthesizes distributor pricing, drop-in alternatives within the SAM C20 family, and practical design notes not found in the manufacturer datasheet, providing an engineer-focused reference for sourcing and second-source decisions.
Drop-in-Alternativen für ATSAMC20J18A-ANTS2 – 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 ATSAMC20J18A-ANTS2 (gleiche Bauform und Footprint) – abweichend in Package, ADC, Mounting Type, Flash Memory, Operating Temperature.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
ATSAMC20J18A-ANT
✅ Drop-In✓ Auf Lager
$2.78 / Stück
Datenblatt ansehen →ATSAMC20G18A-ANT
✅ Drop-In✓ Auf Lager
$2.34 / Stück
Datenblatt ansehen →ATSAMC20J17A-AUT
✅ Drop-In✓ Auf Lager
$3.16 / Stück
Datenblatt ansehen →ATSAMC21J18A-ANT
✅ Drop-In✓ Auf Lager
$4.1 / Stück
Datenblatt ansehen →ATSAMC20E18A-AUT
✅ Drop-In✓ Auf Lager
$4.53 / Stück
Datenblatt ansehen →ATSAMC20J18A-ANTS2 Grenzwerte & elektrische Eigenschaften
| Core Architecture | ARM Cortex-M0+ (32-bit) |
| Maximum CPU Frequency | 48 MHz |
| CoreMark Performance | 2.46 CoreMark/MHz |
| Program Flash Memory | 256 KB |
| SRAM | 32 KB |
| Operating Voltage Range | 2.7 V to 5.5 V |
| Betriebstemperaturbereich | -40°C to +105°C |
| Gehäuse | 64-pin TQFP (10x10 mm) |
| I/O Voltage Tolerance | 5V tolerant |
| ADC | 12-bit, up to 1 Msps |
| SERCOM Peripherals | Configurable (UART/SPI/I2C) |
| Internal RC Oscillator | High-accuracy 48 MHz |
| Packing Media | Tape & Reel (1500 pcs/reel) |
| RoHS-Status | Compliant |
ATSAMC20J18A-ANTS2 Pin-Konfiguration
| Pin 1 | PA00 — GPIO / XIN (external crystal input) |
| Pin 2 | PA01 — GPIO / XOUT (external crystal output) |
| Pin 3 | PA02 — GPIO / SERCOM0 PAD0 |
| Pin 4 | PA03 — GPIO / SERCOM0 PAD1 / ADC AIN[1] |
| Pin 5 | GND — Ground |
| Pin 6 | VDD — Digital supply voltage |
| Pin 7 | PA04 — GPIO / SERCOM0 PAD2 / ADC AIN[2] |
| Pin 8 | PA05 — GPIO / SERCOM0 PAD3 / ADC AIN[3] |
| Pin 9 | PA06 — GPIO / SERCOM1 PAD0 / ADC AIN[4] |
| Pin 10 | PA07 — GPIO / SERCOM1 PAD1 / ADC AIN[5] |
| Pin 11 | PA08 — GPIO / SERCOM1 PAD2 / ADC AIN[6] |
| Pin 12 | PA09 — GPIO / SERCOM1 PAD3 / ADC AIN[7] |
| Pin 13 | PA10 — GPIO / SERCOM2 PAD0 / ADC AIN[8] |
| Pin 14 | PA11 — GPIO / SERCOM2 PAD1 / ADC AIN[9] |
| Pin 15 | PA12 — GPIO / SERCOM2 PAD2 |
| Pin 16 | PA13 — GPIO / SERCOM2 PAD3 |
| Pin 17 | PA14 — GPIO / SERCOM3 PAD0 |
| Pin 18 | PA15 — GPIO / SERCOM3 PAD1 |
| Pin 19 | PA16 — GPIO / SERCOM3 PAD2 / I2C SDA (SERCOM3) |
| Pin 20 | PA17 — GPIO / SERCOM3 PAD3 / I2C SCL (SERCOM3) |
| Pin 21 | PA18 — GPIO / SERCOM4 PAD0 |
| Pin 22 | PA19 — GPIO / SERCOM4 PAD1 |
| Pin 23 | PA20 — GPIO / SERCOM4 PAD2 |
| Pin 24 | PA21 — GPIO / SERCOM4 PAD3 |
| Pin 25 | PA22 — GPIO / SERCOM5 PAD0 |
| Pin 26 | PA23 — GPIO / SERCOM5 PAD1 |
| Pin 27 | PA24 — GPIO / SERCOM5 PAD2 / USB D- |
| Pin 28 | PA25 — GPIO / SERCOM5 PAD3 / USB D+ |
| Pin 29 | GND — Ground |
| Pin 30 | VDD — Digital supply voltage |
| Pin 31 | PB00 — GPIO / SERCOM6 PAD0 |
| Pin 32 | PB01 — GPIO / SERCOM6 PAD1 |
| Pin 33 | PB02 — GPIO / SERCOM6 PAD2 / ADC AIN[10] |
| Pin 34 | PB03 — GPIO / SERCOM6 PAD3 / ADC AIN[11] |
| Pin 35 | PB04 — GPIO / SERCOM7 PAD0 |
| Pin 36 | PB05 — GPIO / SERCOM7 PAD1 |
| Pin 37 | PB06 — GPIO / SERCOM7 PAD2 |
| Pin 38 | PB07 — GPIO / SERCOM7 PAD3 |
| Pin 39 | PB08 — GPIO / SERCOM8 PAD0 / I2C SDA (SERCOM8) |
| Pin 40 | PB09 — GPIO / SERCOM8 PAD1 / I2C SCL (SERCOM8) |
| Pin 41 | PB10 — GPIO / SERCOM8 PAD2 |
| Pin 42 | PB11 — GPIO / SERCOM8 PAD3 |
| Pin 43 | PB12 — GPIO / TC4 WO[0] / SERCOM9 PAD0 |
| Pin 44 | PB13 — GPIO / TC4 WO[1] / SERCOM9 PAD1 |
| Pin 45 | PB14 — GPIO / TC5 WO[0] / SERCOM9 PAD2 |
| Pin 46 | PB15 — GPIO / TC5 WO[1] / SERCOM9 PAD3 |
| Pin 47 | PB16 — GPIO / TC6 WO[0] / SERCOM10 PAD0 |
| Pin 48 | PB17 — GPIO / TC6 WO[1] / SERCOM10 PAD1 |
| Pin 49 | PB18 — GPIO / TC7 WO[0] / SERCOM10 PAD2 |
| Pin 50 | PB19 — GPIO / TC7 WO[1] / SERCOM10 PAD3 |
| Pin 51 | PB20 — GPIO / SERCOM11 PAD0 |
| Pin 52 | PB21 — GPIO / SERCOM11 PAD1 |
| Pin 53 | PB22 — GPIO / SERCOM11 PAD2 |
| Pin 54 | PB23 — GPIO / SERCOM11 PAD3 |
| Pin 55 | PB24 — GPIO / SERCOM12 PAD0 |
| Pin 56 | PB25 — GPIO / SERCOM12 PAD1 |
| Pin 57 | PC00 — GPIO / SERCOM12 PAD2 |
| Pin 58 | PC01 — GPIO / SERCOM12 PAD3 |
| Pin 59 | PC02 — GPIO / SERCOM13 PAD0 |
| Pin 60 | PC03 — GPIO / SERCOM13 PAD1 |
| Pin 61 | GND — Ground |
| Pin 62 | VDD — Digital supply voltage |
| Pin 63 | NRST — Reset input (active low) |
| Pin 64 | SWDIO — Debug data / GPIO |
Typische Anwendungen
ATSAMC20J18A-ANTS2 ist geeignet für 6 Anwendungs: Industrial Sensor Transmitters, Appliance Control Boards, Building Automation Controllers, Smart Metering Endpoints, USB Human Interface Devices, Automotive Body and Comfort Electronics.
Industrial Sensor Transmitters
The ATSAMC20J18A-ANTS2 is well suited for 4-20mA loop-powered industrial sensor transmitters where deterministic real-time response, 5V GPIO tolerance, and low quiescent current are required. Its Cortex-M0+ core at 48MHz handles Modbus RTU, HART, or IO-Link protocol stacks in 256KB Flash, while the 12-bit 1Msps ADC supports ratiometric bridge and thermocouple measurements with hardware oversampling. The 5V-tolerant I/O removes external level shifters when interfacing to legacy 5V sensor front-ends, and the high-accuracy 48MHz internal RC oscillator eliminates the external crystal, reducing BOM cost in field instruments.
Empfohlen
Appliance Control Boards
The ATSAMC20J18A-ANTS2 is widely used in white-goods and appliance control boards (washing machines, dishwashers, refrigerators, induction cooktops) where its 5V I/O tolerance, 105°C operating temperature, and Cortex-M0+ deterministic interrupt response meet stringent EMC and reliability requirements. The 256KB Flash supports full motor-control state machines and user-interface firmware, while the configurable SERCOM peripherals handle UART, SPI, and I2C connections to display modules, sensor hubs, and Wi-Fi/BLE companion modules. The Event System enables hardware-triggered ADC sampling and PWM updates without CPU intervention, ideal for closed-loop BLDC and PFC control loops.
Empfohlen
Building Automation Controllers
The ATSAMC20J18A-ANTS2 fits building automation controllers (HVAC zone controllers, smart thermostats, lighting control panels, access controllers) where multi-protocol connectivity and industrial-grade reliability are essential. The Cortex-M0+ at 48MHz runs BACnet MS-TP, Modbus, or KNX application stacks within 256KB Flash, while the SERCOM peripherals provide UART/SPI/I2C connectivity to sensors, actuators, and user-interface touch controllers. The wide 2.7V-5.5V supply range supports both 3.3V and 5V system rails, and the 105°C temperature rating enables deployment in unconditioned mechanical rooms and rooftop equipment enclosures.
Empfohlen
Smart Metering Endpoints
The ATSAMC20J18A-ANTS2 is ideal for smart metering endpoints (electricity, water, gas, heat meters) where its low SleepWalking current, 5V tolerance, and Cortex-M0+ deterministic performance enable long battery life and accurate metrology. The 12-bit 1Msps ADC with hardware accumulation supports IEC 62053 class-1 energy measurement accuracy, while the Event System wakes the CPU only on meter-relevant events (sensor interrupt, tamper switch, communication request). The 256KB Flash holds full DLMS/COSEM or Wireless M-Bus protocol stacks, and the high-accuracy 48MHz internal RC oscillator maintains timing accuracy over the -40°C to +105°C industrial range.
Empfohlen
USB Human Interface Devices
The ATSAMC20J18A-ANTS2 supports USB 2.0 full-speed device operation on selected pin variants, making it a strong fit for low-cost USB Human Interface Devices (HID) such as industrial keypads, barcode scanners, custom joysticks, and programmable control panels. The Cortex-M0+ at 48MHz easily drives USB HID stacks and key-matrix scanning within 256KB Flash, while the SERCOM peripherals provide UART/SPI expansion for secondary modules. The 5V-tolerant I/O simplifies interfacing to legacy 5V key-matrix hardware, and the small 64-pin TQFP (10x10 mm) package fits space-constrained handheld enclosures with full industrial temperature rating.
Empfohlen
Automotive Body and Comfort Electronics
The ATSAMC20J18A-ANTS2 -ANTS2 with 105°C operating temperature is suitable for automotive body and comfort electronics (HVAC control panels, seat controllers, mirror modules, interior lighting, door modules) where 5V tolerance, CAN connectivity, and industrial-grade reliability are required. Although the SAM C20 family does not include the automotive -AUT variant, the -ANTS2 temperature grade and Cortex-M0+ deterministic real-time response enable use in cabin and underhood-near applications. For CAN-bus body networks, the SAM C21 upgrade variant (ATSAMC21J18A-ANT) adds CAN-FD while sharing the same 64-TQFP footprint.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für ATSAMC20J18A-ANTS2 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | ATSAMC20J18A-ANT | ATSAMC20G18A-ANT | ATSAMC20J17A-AUT | ATSAMC21J18A-ANT | ATSAMC20E18A-AUT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ with CAN-FD | ARM Cortex-M0+ |
| Maximum Clock | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Flash Memory | 256 KB | 256 KB | 256 KB | 128 KB | 256 KB | 256 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 16 KB | 32 KB | 32 KB |
| Operating Voltage | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +125C (AUT) | -40C to +105C | -40C to +125C (AUT) |
| Internal RC Oscillator | High-accuracy 48 MHz | Standard 48 MHz | High-accuracy 48 MHz | High-accuracy 48 MHz | High-accuracy 48 MHz | High-accuracy 48 MHz |
Wichtigste Unterscheidungsmerkmale
- High-accuracy 48 MHz internal RC oscillator for timing-sensitive industrial protocols (vs. ATSAMC20J18A-ANT)
- 5V GPIO tolerance with industrial 105C operating range (vs. ATSAMC21J18A-ANT)
- Maximum Flash density in the SAM C20 J-variant 64-pin TQFP package (vs. ATSAMC20J17A-AUT)
Designhinweise
Estimated: Each VDD pin pair on the ATSAMC20J18A-ANTS2 should be decoupled with a 100nF X7R ceramic capacitor placed within 2mm of the pin, plus a shared 1uF to 4.7uF bulk capacitor near the package. The SAM C20 integrates an on-chip 1.2V LDO generating the core supply from external VDD, so no external core-voltage rail is required. For USB applications, the VDDIO and VDDIN rails must be tied together and supplied from a clean 3.3V LDO capable of at least 100mA peak during USB transmit bursts.
Estimated: Route the SWDIO and SWCLK traces as a short, parallel pair with ground shielding, keeping total trace length under 50mm to avoid debugger communication errors. The NRST line should include a 10k pull-up to VDD and a 100nF capacitor to ground for debouncing; do not add a reset button capacitor larger than 1nF or the internal brown-out detector may mis-trigger. If USB D+/D- are used, route them as a 90Ω differential pair with matched length to within 150mils, and place the 15k pull-down resistor on D- within 5mm of the package pin.
When migrating from ATSAMC20J18A-ANTS2 to ATSAMC20J18A-ANT, the high-accuracy 48MHz internal RC oscillator calibration differs and may require NVMCTRL software adjustment. Do not assume the two parts are firmware-identical when designing for tight timing budgets (UART baud rate accuracy, USB full-speed timing). The -ANTS2 -S2 suffix denotes the high-accuracy RC48 variant specifically for timing-sensitive industrial protocols. Also note that the SAM C20 family does not include CAN-FD; choose the SAM C21 (ATSAMC21J18A-ANT) if CAN connectivity is required.
Compliance-Informationen
RoHS and REACH compliant per Microchip product declaration. -ANTS2 suffix denotes GREEN-compliant packaging. Not AEC-Q100 qualified - choose ATSAMC20J18A-AUT (automotive grade) variant for AEC-Q100 applications. Lead-free (Pb-free) matte-tin terminations suitable for 260C peak reflow.
