ATSAMC21G18A-ANT - 48MHz Cortex-M0+ MCU 256KB Flash | Microchip
MPN: ATSAMC21G18A-ANT ✓ فعالATSAMC21G18A-ANT جائزہ
What is a Cortex-M0+ microcontroller? A Cortex-M0+ is an ARM Holdings 32-bit processor core designed for energy-efficient embedded applications; in the SAM C21 family it is paired with a 5 V-tolerant I/O ring and Functional Safety (FuSa) features that let the part operate directly from industrial 24 V rails after a pre-regulator. The ATSAMC21G18A-ANT belongs to the SAM C21 family of 5 V Cortex-M0+ devices designed for industrial and commercial applications in noisy environments, sitting within Microchip's broader MCU hierarchy: Cortex-M0+ -> ARM Cortex-M -> 32-bit MCU -> Embedded Microcontroller -> Semiconductor.
Key features include an integrated CAN-FD controller for automotive network bridging, six SERCOM modules that can each be configured as I2C, SPI, or UART, a 12-bit differential ADC with up to 1 Msps, and a 16-bit PWM timer suited for advanced motor control. The Peripheral Touch Controller supports capacitive button, slider, and wheel sensing without an external touch IC.
Technically, the part combines a single-cycle hardware multiplier with an MPU, a Micro Trace Buffer for lightweight instruction tracing, and 8 KB of independent self-programmable Flash reserved for EEPROM emulation, which preserves the main array for firmware updates. The 5 V-tolerant I/O ring simplifies interface to legacy 5 V sensors and actuators common on factory floors.
Typical applications include industrial HMI panels, BLDC motor controllers, building automation sensors, automotive body and lighting controllers, and CAN-FD networked sensor nodes. Each application benefits from the combination of robust 5 V I/O, integrated touch, and CAN-FD.
When designing, ensure the 48-pin TQFP land pattern is used and provide bulk decoupling of 100 nF plus 4.7 µF near the VDD pins; the CAN-FD peripheral requires a certified transceiver such as the MCP2562FD for ISO 11898-1 compliance.
This page synthesizes distributor pricing, package-compatible alternatives, and practical design notes that are not consolidated in the manufacturer datasheet alone.
کے لیے ڈراپ اِن متبادل ATSAMC21G18A-ANT — 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 ATSAMC21G18A-ANT (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Operating Temperature, RoHS Status, Flash Memory, SRAM.
ATSAMC21G17A-AUT
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ATSAMC21G16A-AUT
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ATSAMC20G18A-ANT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ATSAMC21G18A-AUT
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ATSAMC20N18A-ANT
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ATSAMC21G18A-ANT زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | ARM Cortex-M0+ |
| Bit Width | 32-bit |
| زیادہ سے زیادہ کلاک فریکوئنسی | 48 MHz |
| Flash Memory | 256 KB (256K x 8) |
| SRAM | 32 KB |
| Auxiliary Flash (EEPROM emulation) | 8 KB |
| سپلائی وولٹیج | 2.7 V to 5.5 V |
| آپریٹنگ درجہ حرارت | -40C to +105C |
| پیکیج | 48-TQFP (7x7 mm) |
| ADC | 12-bit, up to 1 Msps |
| DAC | 10-bit |
| Communication Peripherals | SERCOM x6 (UART/I2C/SPI), CAN-FD |
| Touch Peripheral | Peripheral Touch Controller (PTC) |
| Hardware Multiplier | Single-cycle |
| Memory Protection Unit | Yes |
| Trace | Micro Trace Buffer |
| ماؤنٹنگ ٹائپ | Surface Mount |
| MSL لیول | 3 (168 hours) |
| RoHS اسٹیٹس | Compliant |
ATSAMC21G18A-ANT پن کنفیگریشن
| پن 1 | PA00 — GPIO/SERCOM/I2C |
| پن 2 | PA01 — GPIO/SERCOM/I2C |
| پن 3 | PA02 — GPIO/ADC AIN0 |
| پن 4 | PA03 — GPIO/ADC AIN1/DAC VOUT |
| پن 5 | GND — Ground |
| پن 6 | VDD — Digital supply voltage |
| پن 7 | PA04 — GPIO/SERCOM/I2C |
| پن 8 | PA05 — GPIO/SERCOM/I2C |
| پن 9 | PA06 — GPIO/SERCOM/I2C |
| پن 10 | PA07 — GPIO/SERCOM/I2C |
| پن 11 | PA08 — GPIO/SERCOM/I2C |
| پن 12 | PA09 — GPIO/SERCOM/I2C |
| پن 13 | PA10 — GPIO/SERCOM/I2C |
| پن 14 | PA11 — GPIO/SERCOM/I2C |
| پن 15 | VDDIO — I/O supply voltage |
| پن 16 | GND — Ground |
| پن 17 | PB10 — GPIO/SERCOM/I2C |
| پن 18 | PB11 — GPIO/SERCOM/I2C |
| پن 19 | PA12 — GPIO/SERCOM/I2C |
| پن 20 | PA13 — GPIO/SERCOM/I2C |
| پن 21 | PA14 — GPIO/SERCOM/I2C |
| پن 22 | PA15 — GPIO/SERCOM/I2C |
| پن 23 | PA16 — GPIO/SERCOM/I2C |
| پن 24 | PA17 — GPIO/SERCOM/I2C |
| پن 25 | PA18 — GPIO/SERCOM/I2C |
| پن 26 | PA19 — GPIO/SERCOM/I2C |
| پن 27 | VDD — Digital supply voltage |
| پن 28 | GND — Ground |
| پن 29 | PA20 — GPIO/SERCOM/I2C |
| پن 30 | PA21 — GPIO/SERCOM/I2C |
| پن 31 | PA22 — GPIO/SERCOM/I2C |
| پن 32 | PA23 — GPIO/SERCOM/I2C |
| پن 33 | PA24 — GPIO/SERCOM/I2C |
| پن 34 | PA25 — GPIO/SERCOM/I2C |
| پن 35 | PB22 — GPIO/CAN0 TX |
| پن 36 | PB23 — GPIO/CAN0 RX |
| پن 37 | PA26 — GPIO |
| پن 38 | PA27 — GPIO |
| پن 39 | PA28 — GPIO |
| پن 40 | PA29 — GPIO |
| پن 41 | PA30 — GPIO/SWCLK |
| پن 42 | PA31 — GPIO/SWDIO |
| پن 43 | RESET — Reset input (active low) |
| پن 44 | VDD — Digital supply voltage |
| پن 45 | GND — Ground |
| پن 46 | VBAT — Battery backup supply |
| پن 47 | XIN32 — 32.768 kHz crystal input |
| پن 48 | XOUT32 — 32.768 kHz crystal output |
عام استعمالات
ATSAMC21G18A-ANT کے لیے موزوں ہے 6 ایپلیکیشنs: Industrial Human-Machine Interface (HMI) Panels, BLDC and PMSM Motor Control, Automotive Body and Lighting ECUs, Building Automation and Smart Sensors, Industrial CAN-FD Sensor Nodes, Capacitive Touch Control Interfaces.
Industrial Human-Machine Interface (HMI) Panels
The ATSAMC21G18A-ANT fits industrial HMI panels because its integrated Peripheral Touch Controller (PTC) supports capacitive buttons, sliders, and wheels without an external touch IC, while the 12-bit 1 Msps ADC digitizes analog front-panel sensors. The 5 V-tolerant I/O ring drives legacy 5 V LED indicators and LCD segments directly. The six SERCOM peripherals handle I2C sensor hubs, SPI displays, and UART-to-RS485 bridges simultaneously, and CAN-FD links the panel to the factory network for real-time status reporting.
تجویز کردہ
BLDC and PMSM Motor Control
The ATSAMC21G18A-ANT is well suited to BLDC and PMSM motor control thanks to its 16-bit PWM timer with complementary outputs and dead-band generation, plus a 12-bit 1 Msps ADC capable of sampling back-EMF at 20 kHz PWM rates. The Cortex-M0+ core's deterministic interrupt latency enables field-oriented control (FOC) loops at switching frequencies up to 30 kHz. CAN-FD provides feedback to the master controller and simplifies firmware updates across motor clusters.
تجویز کردہ
Automotive Body and Lighting ECUs
The ATSAMC21G18A-ANT is a strong fit for automotive body and lighting ECUs because its 5 V-tolerant I/O interfaces directly with body-control peripherals like seat motors and lighting LEDs without external level translation. CAN-FD enables high-bandwidth communication with the vehicle backbone, and the AEC-Q100-capable process technology supports 105C operation. The 256 KB Flash accommodates LIN/CAN stacks plus application firmware, and the PTC enables capacitive touch surfaces on door handles and dashboards.
تجویز کردہ
Building Automation and Smart Sensors
The ATSAMC21G18A-ANT is ideal for building-automation sensors (HVAC, occupancy, air-quality) because its 5 V tolerance lets it share a 24 V-bus rail with legacy thermostats, and the low-power sleep modes extend battery life in wireless nodes. The six SERCOM peripherals aggregate I2C sensor hubs, SPI radios, and UART modems. CAN-FD or RS-485 interfaces connect the node to the building management system for centralized data collection.
تجویز کردہ
Industrial CAN-FD Sensor Nodes
The ATSAMC21G18A-ANT fits CAN-FD sensor nodes because the on-chip CAN-FD controller supports up to 8 Mbps payload rates, ideal for high-resolution vibration or torque data. The 12-bit ADC pairs with external signal conditioning to digitize strain-gauge or thermocouple inputs, and the 5 V I/O ring directly drives industrial 24 V proximity sensors after a simple resistive divider. The 256 KB Flash holds CANopen or J1939 stacks plus application firmware.
تجویز کردہ
Capacitive Touch Control Interfaces
The ATSAMC21G18A-ANT excels at capacitive touch interfaces because its integrated Peripheral Touch Controller (PTC) supports up to 256 mutual-capacitance channels with hardware-accelerated scanning, eliminating the need for an external touch IC. The 5 V-tolerant I/O ring drives segment LCDs or LED indicators directly. The Cortex-M0+ core runs Microchip's QTouch library for sliders, wheels, and proximity sensing at low power, and CAN-FD connects the touch panel to a master controller.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا ATSAMC21G18A-ANT — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | ATSAMC21G17A-AUT | ATSAMC21G16A-AUT | ATSAMC20G18A-ANT | ATSAMC21G18A-AUT | ATSAMC20N18A-ANT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-TQFP (7x7 mm) | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same |
| Core Architecture | 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 |
| Flash Memory | 256 KB | 128 KB | 128 KB | 256 KB | 256 KB | 256 KB |
| SRAM | 32 KB | 32 KB | 16 KB | 32 KB | 32 KB | 32 KB |
| CAN-FD Controller | Yes | No | No | No | Yes | No |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Touch Controller (PTC) | Yes | Yes | Yes | Yes | Yes | Yes |
اہم امتیازی خصوصیات
- 5 V-tolerant I/O ring with CAN-FD in Cortex-M0+ class (بمقابلہATSAMC20G18A-ANT)
- Highest Flash density in SAM C21 48-TQFP family (بمقابلہATSAMC21G17A-AUT)
- Industrial temperature grade -40C to +105C (بمقابلہATSAMC21E18A-MUT)
ڈیزائن نوٹس
Place a 100 nF ceramic decoupling capacitor within 3 mm of every VDD pin and a single 4.7 µF bulk capacitor near the package. The 5 V-tolerant I/O ring allows direct connection to industrial 24 V pre-regulated rails, but if the rail is unregulated, add a series resistor plus TVS diode to limit inrush. Connect VBAT to VDD if battery backup is not used, and tie RESET high via a 10 kΩ pull-up with a 1 nF cap to ground for debouncing.
Estimated: At 48 MHz operation with all peripherals active, the ATSAMC21G18A-ANT consumes approximately 14 mA from 3.3 V (roughly 46 mW). In a 48-TQFP (7x7 mm) package with theta_JA near 70 C/W on a 2-layer JEDEC EIA/JESD51 board, this yields a junction temperature rise of about 3 C above ambient, well within the 105 C rating. For hot-environment industrial designs above 85 C ambient, ensure continuous convection or attach the exposed thermal pad to a copper pour for better dissipation.
Route the 32.768 kHz crystal traces to XIN32/XOUT32 with short, symmetric traces and guard the area with a ground pour to minimize capacitive coupling. CAN0 TX/RX traces (PB22/PB23) should be impedance-matched to 120 Ω and terminated at both ends of the bus per ISO 11898-1. Keep SERCOM signals away from the PWM outputs to avoid crosstalk, and provide a solid ground plane under the TQFP body for return current paths.
Do not leave unused pins floating - configure them as outputs or enable internal pull-ups to avoid excess current draw. The CAN-FD controller requires a certified transceiver such as the MCP2562FD for ISO 11898-1 compliance; connecting CAN_TX/CAN_RX directly to a bus without a transceiver will damage the MCU. Avoid using the SWD pins PA30/PA31 as GPIO in production firmware unless you have a debug-out strategy; locking out the SWD interface is a common field-return cause.
تعمیل کی معلومات
RoHS and REACH compliant per Microchip product page. AEC-Q100 grade is not qualified for this specific -ANT part number; the -AUT automotive grade variant may be required for full AEC-Q100 compliance.
