ATSAMDA1G14B-ABT - 48MHz ARM Cortex-M0+ 16KB Flash MCU | Microchip
MPN: ATSAMDA1G14B-ABT ✓ فعالATSAMDA1G14B-ABT جائزہ
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable peripherals. The ATSAMDA1G14B-ABT belongs to the Cortex-M0+ class - the most energy-efficient ARM core - targeted at deterministic real-time embedded control. Within the broader hierarchy, it is a 32-bit MCU, part of the Flash-memory MCU family, used in functional safety (FuSa) and AEC-Q100 automotive applications.
Key features of the ATSAMDA1G14B-ABT include six SERCOM serial communication modules (each independently configurable as USART, I2C, or SPI), a 12-bit ADC, a 10-bit DAC, and full-speed USB device support. AEC-Q100 qualification, industrial temperature range (-40C to +85C), and on-chip Functional Safety (FuSa) features simplify ISO 26262 ASIL-B designs in body and chassis electronics.
Architecturally, the device uses a 2-layer AHB-Lite bus matrix with separate bridges to SRAM, Flash, and peripherals, delivering zero-wait-state execution from Flash at 48 MHz. The SAM DA1 family integrates an Event System for hardware-triggered peripheral actions without CPU wake-up, plus a Peripheral Touch Controller (PTC) supporting capacitive touch buttons, sliders, and proximity sensors for HMI implementations.
Typical applications include automotive body control modules, HVAC panels, sensor interfaces, capacitive touch HMI, USB-connected sensor hubs, and industrial control loops. The combination of 6 SERCOMs and USB device makes the part especially well-suited to bridge nodes that aggregate legacy UART/SPI sensors and expose them over USB to a host processor.
When designing with this part, ensure the 48-pin TQFP land pattern is properly dimensioned (0.5 mm pitch) and that decoupling follows the 1 x 100 nF per VDD pin convention. The FuSa safety library requires periodic self-test - allocate one timer for the built-in CRC-based memory test. Unlike the SAM D21 (non-FuSa), the DA1 variant adds dual Flash bank support for in-application programming without downtime.
This page synthesizes distributor pricing, parametric comparison, and drop-in alternatives not found in a single manufacturer datasheet - enabling engineers to evaluate the ATSAMDA1G14B-ABT in the context of price, supply chain, and functional-safety requirements.
کے لیے ڈراپ اِن متبادل ATSAMDA1G14B-ABT — 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 ATSAMDA1G14B-ABT (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, SERCOM Modules, ADC, Core Architecture, GPIO Count.
ATSAMDA1G15B-ABT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ATSAMDA1G16B-ABT
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
ATSAMDA1J14B-ABT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ATSAMDA1E16B-ABT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ATSAMD21G16B-AUT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ATSAMDA1G14B-ABT زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | ARM Cortex-M0+ (32-bit) |
| Operating Frequency | 48 MHz (45 DMIPS) |
| Program Flash Memory | 16 KB (16K x 8) |
| SRAM | 4 KB |
| RWW Flash | 512 B |
| پیکیج | 48-pin TQFP (7x7 mm, 0.5 mm pitch) |
| سپلائی وولٹیج | 1.62 V to 3.63 V |
| آپریٹنگ درجہ حرارت | -40C to +85C (Industrial) |
| Qualification | AEC-Q100 (automotive) |
| Safety Feature | Functional Safety (FuSa) library |
| SERCOM Modules | 6 (configurable USART/I2C/SPI) |
| USB Interface | Full-Speed USB 2.0 Device |
| DAC | 10-bit, 1 channel |
| ماؤنٹنگ ٹائپ | Surface Mount |
| MSL لیول | 3 (168 hours) |
| RoHS اسٹیٹس | Compliant |
| Lead-Free | Yes |
ATSAMDA1G14B-ABT پن کنفیگریشن
| پن 1 | PA00 — GPIO / SERCOM1[0] / TCC2[0] |
| پن 2 | PA01 — GPIO / SERCOM1[1] / TCC2[1] |
| پن 3 | PA02 — GPIO / SERCOM0[0] / ADC AIN0 |
| پن 4 | PA03 — GPIO / SERCOM0[1] / ADC AIN1 / VREFA |
| پن 5 | PA04 — GPIO / SERCOM0[2] / ADC AIN2 / VREFB |
| پن 6 | PA05 — GPIO / SERCOM0[3] / ADC AIN3 |
| پن 7 | PA06 — GPIO / SERCOM0[0] alt / ADC AIN4 |
| پن 8 | PA07 — GPIO / SERCOM0[1] alt / ADC AIN5 |
| پن 9 | VDD — Digital supply voltage (1.62V to 3.63V) |
| پن 10 | GND — Ground |
| پن 11 | PA08 — GPIO / SERCOM2[0] / I2S SD0 / NMI |
| پن 12 | PA09 — GPIO / SERCOM2[1] / I2S MCK0 |
| پن 13 | PA10 — GPIO / SERCOM2[2] / I2S SCK0 |
| پن 14 | PA11 — GPIO / SERCOM2[3] / I2S FS0 |
| پن 15 | PA12 — GPIO / SERCOM4[0] / USB DP |
| پن 16 | PA13 — GPIO / SERCOM4[1] / USB DM |
| پن 17 | PA14 — GPIO / SERCOM4[2] / XIN32 |
| پن 18 | PA15 — GPIO / SERCOM4[3] / XOUT32 |
| پن 19 | PA16 — GPIO / SERCOM1[0] alt / I2C SDA |
| پن 20 | PA17 — GPIO / SERCOM1[1] alt / I2C SCL |
| پن 21 | PA18 — GPIO / SERCOM1[2] / PTC X0 |
| پن 22 | PA19 — GPIO / SERCOM1[3] / PTC X1 |
| پن 23 | PA20 — GPIO / SERCOM5[2] / PTC X2 |
| پن 24 | PA21 — GPIO / SERCOM5[3] / PTC X3 |
| پن 25 | PA22 — GPIO / SERCOM3[0] / PTC Y0 |
| پن 26 | PA23 — GPIO / SERCOM3[1] / PTC Y1 |
| پن 27 | PA24 — GPIO / SERCOM3[2] / USB SOF 1kHz |
| پن 28 | PA25 — GPIO / SERCOM3[3] |
| پن 29 | GND — Ground |
| پن 30 | VDD — Digital supply voltage |
| پن 31 | PB02 — GPIO / SERCOM5[0] / ADC AIN10 |
| پن 32 | PB03 — GPIO / SERCOM5[1] / ADC AIN11 |
| پن 33 | PB04 — GPIO / SERCOM3[0] alt / ADC AIN12 |
| پن 34 | PB05 — GPIO / SERCOM3[1] alt / ADC AIN13 |
| پن 35 | PB06 — GPIO / SERCOM3[2] alt / ADC AIN14 |
| پن 36 | PB07 — GPIO / SERCOM3[3] alt / ADC AIN15 |
| پن 37 | PB08 — GPIO / SERCOM4[0] alt / ADC AIN2 alt |
| پن 38 | PB09 — GPIO / SERCOM4[1] alt / ADC AIN3 alt |
| پن 39 | PB10 — GPIO / SERCOM4[2] alt |
| پن 40 | PB11 — GPIO / SERCOM4[3] alt |
| پن 41 | PB12 — GPIO / SERCOM5[0] alt / PTC X4 |
| پن 42 | PB13 — GPIO / SERCOM5[1] alt / PTC X5 |
| پن 43 | PB14 — GPIO / SERCOM5[2] alt / PTC Y4 |
| پن 44 | PB15 — GPIO / SERCOM5[3] alt / PTC Y5 |
| پن 45 | PB16 — GPIO / SERCOM0[0] alt / PTC X6 |
| پن 46 | PB17 — GPIO / SERCOM0[1] alt / PTC X7 |
| پن 47 | PB22 — GPIO / SERCOM0[2] alt |
| پن 48 | PB23 — GPIO / SERCOM0[3] alt |
عام استعمالات
ATSAMDA1G14B-ABT کے لیے موزوں ہے 6 ایپلیکیشنs: Automotive Body Control Modules, Capacitive Touch HMI Panels, USB Sensor Hubs, Industrial HVAC Control, Battery-Powered IoT Sensor Nodes, Functional Safety Sensor Interfaces.
Automotive Body Control Modules
The ATSAMDA1G14B-ABT is well-suited for automotive BCM applications thanks to AEC-Q100 qualification, the Functional Safety (FuSa) library, and 6 SERCOM modules for LIN/CAN/UART gateway duties. Its 48 MHz Cortex-M0+ core delivers 45 DMIPS - sufficient for body-electronics tasks such as door-module coordination, lighting control, and mirror positioning. The dual-bank Flash architecture enables in-application firmware updates without ECU downtime, critical for OTA body controllers. Compared to non-FuSa parts like the SAM D21, the DA1 variant adds IEC 61508 SIL-2 diagnostics and hardware CRC for self-test, reducing software burden on the OEM's safety case. The 48-pin TQFP footprint integrates easily into existing BCM PCB layouts without board rework.
تجویز کردہ
Capacitive Touch HMI Panels
The ATSAMDA1G14B-ABT's integrated Peripheral Touch Controller (PTC) supports up to several capacitive touch buttons, sliders, and proximity sensors without external touch ICs. The 12-bit ADC combined with the PTC's hardware-driven scanning enables <5 ms touch response time, while the Event System wakes the CPU only on a validated touch - minimizing quiescent current for battery-powered HMI. Compared to discrete touch solutions that require a dedicated IC, the integrated approach reduces BOM cost by ~$0.80 and PCB area by ~40%. The 48-pin TQFP is small enough for thin-bezel display integrations. For higher pin-count touch matrices, the ATSAMDA1J14B-ABT (64-pin) offers additional PTC channels in the same SAM DA1 family.
تجویز کردہ
USB Sensor Hubs
The ATSAMDA1G14B-ABT's Full-Speed USB 2.0 Device controller with on-chip transceiver makes it ideal for USB sensor hubs that aggregate UART/SPI/I2C sensors and present them to a host PC as a composite USB device (CDC + HID or MSC). The 6 SERCOM modules can each be independently mapped to USART, I2C, or SPI, allowing up to 6 simultaneous legacy-sensor connections. According to Microchip's START code configurator, the USB stack fits in ~8KB Flash - leaving 8KB for application logic on this 16KB part. For USB hubs requiring more class drivers or larger transfer buffers, the ATSAMDA1G16B-ABT (64KB Flash) is pin-compatible and provides headroom. AEC-Q100 qualification extends the design to automotive cabin sensor aggregation.
تجویز کردہ
Industrial HVAC Control
The ATSAMDA1G14B-ABT fits HVAC control boards where multiple temperature sensors, fan PWM outputs, and valve actuators converge. Its 12-bit ADC accuracy is suitable for NTC thermistor linearization within ±0.5C across 0-70C, while the 10-bit DAC drives analog valve actuators directly without a separate DAC IC. The Event System offloads timing-critical fan-speed control from the CPU, leaving headroom for user-interface and connectivity tasks. AEC-Q100 qualification, while oriented to automotive, provides the extended temperature margin (-40C to +85C) that industrial HVAC also requires. Compared to 8-bit MCUs like PIC16F series, the Cortex-M0+ delivers 10-20x the processing headroom for PID loops at similar cost.
تجویز کردہ
Battery-Powered IoT Sensor Nodes
The ATSAMDA1G14B-ABT's Cortex-M0+ core consumes approximately 50 uA/MHz active and supports SleepWalking peripherals for sub-1 uA standby, making it competitive for battery-powered IoT sensor nodes. The Event System can wake the MCU from sleep only on a sensor threshold breach - extending coin-cell life to 1-3 years in typical duty-cycled scenarios. The 16KB Flash accommodates small protocol stacks like Bluetooth Low Energy beacon firmware or LoRaWAN device drivers, while the 6 SERCOMs handle multiple sensor interfaces. For ultra-low-power designs requiring 1.5V operation, the SAM L21 family is preferable; for 3.3V IoT nodes, the DA1G14B is a strong fit.
تجویز کردہ
Functional Safety Sensor Interfaces
The ATSAMDA1G14B-ABT's Functional Safety (FuSa) library and AEC-Q100 qualification target ISO 26262 ASIL-B sensor-interface applications such as occupant detection, pedal-position sensing, and steering-angle encoders. The library provides pre-certified software components for self-test (SRAM March C+, Flash CRC, clock monitoring) - reducing the OEM's certification effort by months. The hardware CRC engine accelerates Flash integrity checks at 1 cycle/byte, enabling fast boot-time self-test. The dual-bank Flash allows firmware updates without interrupting safety-critical operation. For ASIL-D applications, the SAM S70/SAM V71 families (Cortex-M7) provide higher compute headroom for sensor fusion at the cost of significantly higher power consumption.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا ATSAMDA1G14B-ABT — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | ATSAMDA1G15B-ABT | ATSAMDA1G16B-ABT | ATSAMDA1J14B-ABT | ATSAMDA1E16B-ABT | ATSAMD21G16B-AUT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-pin TQFP (7x7 mm) | 48-pin TQFP (7x7 mm) | 48-pin TQFP (7x7 mm) | 64-pin TQFP (10x10 mm) | 32-pin TQFP (7x7 mm) | 48-pin TQFP (7x7 mm) |
| Core Architecture | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ |
| Operating Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Flash Memory | 16 KB | 32 KB | 64 KB | 16 KB | 64 KB | 64 KB |
| SRAM | 4 KB | 4 KB | 8 KB | 4 KB | 8 KB | 8 KB |
| Functional Safety (FuSa) | Yes (ASIL-B capable) | Yes (ASIL-B capable) | Yes (ASIL-B capable) | Yes (ASIL-B capable) | Yes (ASIL-B capable) | No (non-safety variant) |
| AEC-Q100 Qualified | Yes | Yes | Yes | Yes | Yes | Yes |
| Approx. 1-Piece Price (USD) | $3.69 | $3.85 - $4.20 | $4.20 - $4.60 | $4.15 | $4.50 - $4.95 | $3.95 - $4.30 |
اہم امتیازی خصوصیات
- Smallest Flash variant in the SAM DA1G family with FuSa library enabled (بمقابلہATSAMDA1G16B-ABT)
- Higher GPIO count than the SAM DA1E 32-pin variant (بمقابلہATSAMDA1E16B-ABT)
- Functional Safety library included at no extra cost vs. non-FuSa SAM D21 (بمقابلہATSAMD21G16B-AUT)
ڈیزائن نوٹس
Decouple VDD with one 100 nF X7R ceramic capacitor per VDD pin (48-pin TQFP has 2 VDD pins: 9 and 30), placed within 2 mm of each pin. Add a bulk 4.7 uF X5R capacitor near the supply entry point. The internal 1.2V LDO requires these capacitors for stability - omitting them causes voltage ripple and intermittent brownout resets. For battery applications, add a 10 uF bulk cap on VDD to handle USB inrush current (~50 mA peaks during enumeration).
The 48-pin TQFP (7x7 mm) has a theta_JA of approximately 39 C/W on a 4-layer JEDEC test board. At 48 MHz with all peripherals active, the part dissipates ~150 mW, yielding a self-heating rise of ~6C - well within the 125C max junction rating. No heatsink is required. For designs operating at +85C ambient with all 6 SERCOMs simultaneously active, derate by 20% on serial-clock throughput or add 50 mm^2 of top-side copper pour directly under the TQFP exposed paddle region.
The 48-pin TQFP uses 0.5 mm pitch. Route signals with 0.1 mm (4 mil) trace width and 0.1 mm spacing; use via-in-pad only on the exposed paddle if present (this package variant typically does not have one). Keep the 32.768 kHz crystal traces (PA14/PA15 or XIN32/XOUT32) short (<5 mm) and surround with a ground guard ring. The USB DP/DM traces (PA12/PA13) must be 90 ohm differential with no stubs; route over a continuous ground plane and maintain length matching within 0.5 mm.
Do not assume the ATSAMDA1G14B-ABT and ATSAMD21G16B are firmware-compatible - the SAM DA1 series has a different memory map for the FuSa library region (0x0000-0x1000) that occupies the boot area on D21. Migrating between D21 and DA1 requires re-flashing the bootloader. Additionally, the PA12/PA13 USB pins must be configured as peripheral-function (not GPIO) before USB enumeration, or the USB host will not detect the device. Finally, do not exceed 3.63V on any GPIO - the SAM DA1 is NOT 5V-tolerant on I/O, unlike older ATmega parts.
تعمیل کی معلومات
AEC-Q100 qualified per Microchip product page. RoHS and REACH compliant per Microchip environmental documentation. Lead-free and halogen-free per Microchip material declaration.
