ATSAM4SD16BA-AUR - 120MHz Cortex-M4 MCU 1MB Flash | Microchip
N.º de pieza: ATSAM4SD16BA-AUR ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $8.41 | $8,41 |
| 10 | $7.85 | $78,50 |
| 100 | $7.1 | $710,00 |
| 500 | $6.42 | $3.210,00 |
| 1.000 | $5.88 | $5.880,00 |
| 1.500 | $5.55 | $8.325,00 |
ATSAM4SD16BA-AUR Descripción general
What is a Cortex-M4 microcontroller? A Cortex-M4 microcontroller is a 32-bit processor core designed by ARM Holdings, optimised for embedded applications that require deterministic real-time response, digital signal processing, and low power consumption. Within the taxonomy, the ATSAM4SD16BA-AUR sits as: Cortex-M4 core -> ARM 32-bit MCU -> microcontroller -> embedded IC -> semiconductor. The SAM4S family is Microchip's mainstream Cortex-M4 line, balancing computational throughput with peripheral density for general-purpose industrial and consumer designs.
Key specifications include 1MB program Flash, 128KB SRAM, a 16-channel peripheral DMA controller, and an 8-channel 12-bit ADC with up to 1Msps conversion. The device integrates high-speed connectivity including one USB 2.0 Full-Speed port, up to three USART/UART channels, two TWI (I2C-compatible), two SPI interfaces, plus an SSC (Synchronous Serial Controller) for audio/I2S streams. A flexible 16-bit timer/counter block (TC) delivers PWM, capture, and quadrature decoding across multiple channels.
Architecturally, the ATSAM4SD16BA-AUR uses a 2-layer AHB matrix providing simultaneous access to Flash, SRAM, and peripherals, eliminating bus contention in data-heavy applications. The integrated voltage regulator supports 1.62V to 3.6V core operation from a single 1.8V-3.6V supply rail. Multi-bit ECC on Flash plus a backup register region preserve critical state during brown-out events, distinguishing the SAM4S family from lower-tier Cortex-M0/M0+ alternatives.
Typical applications span industrial PLC I/O modules, building automation gateways, USB peripherals (HID, CDC, mass storage), motor control inverter boards, low-end HMI displays, and consumer appliance controllers. The 64-pin LQFP footprint simplifies hand-prototyping and optical inspection compared with leadless QFN packages, making it popular in medium-volume designs. Designers requiring extended industrial temperature coverage choose this part for factory-floor equipment subject to -40C to +85C ambient swings.
When designing with the ATSAM4SD16BA-AUR, allocate PCB real-estate for a 12 MHz or 16 MHz external crystal feeding the PLL to reach the 120MHz core clock. Decouple VDDCORE and VDDIO with 100nF X7R ceramics within 3mm of each pin pair. Configure the Flash wait-states per the device errata and reference the Microchip ASF (Advanced Software Framework) or Harmony 3 for peripheral drivers.
This page synthesises real distributor pricing, drop-in SAM4S family alternatives, USB and ADC reference design notes, and pinout guidance not consolidated in the standalone datasheet PDF.
Alternativas directas para ATSAM4SD16BA-AUR — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con ATSAM4SD16BA-AUR (mismo factor de forma y huella) — difiere en Package, USB, ADC, SRAM, Operating Temperature.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
ATSAM4SA16BA-AUR
✅ Sustitución directa✓ En stock
$5.45 / unidad
Ver hoja de datos →ATSAM4SD16BA-AU
✅ Sustitución directa✓ En stock
$8.62 / unidad
Ver hoja de datos →ATSAM4SD16BA-ANR
✅ Sustitución directa✓ En stock
$5.92 / unidad
Ver hoja de datos →ATSAM4SA16CA-AUR
✅ Sustitución directa✓ En stock
$6.23 / unidad
Ver hoja de datos →ATSAM4SA16CB-ANR
✅ Sustitución directa✓ En stock
$7.05 / unidad
Ver hoja de datos →ATSAM4SD16BB-MNR
✅ Sustitución directa✓ En stock
$6.78 / unidad
Ver hoja de datos →ATSAM4SD16BA-AUR Valores máximos y características eléctricas
| Core Architecture | ARM Cortex-M4 (32-bit) with FPU |
| Maximum CPU Clock | 120 MHz |
| Program Flash Memory | 1 MB (1M x 8) |
| SRAM | 128 KB |
| Supply Voltage (VDDIO) | 1.62 V to 3.6 V |
| Encapsulado | 64-pin LQFP (10x10 mm) |
| Temperatura de funcionamiento | -40 C to +85 C (Industrial) |
| ADC | 12-bit, up to 1 Msps, 8 channels |
| USB | USB 2.0 Full-Speed Device/Host |
| UART/USART | Up to 3 channels |
| SPI | 2 interfaces |
| TWI (I2C) | 2 interfaces |
| DMA Channels | 16 (peripheral) |
| Timers/Counters | TC block, multiple 16-bit channels |
| PWM Channels | Multiple, hardware-supported |
| Watchdog / Brown-out Reset | Yes (integrated) |
| Tipo de montaje | Surface Mount (LQFP) |
| Packing Media | Tape and Reel (1500 per reel) |
| Estado RoHS | Compliant (Green) |
Configuración de pines de ATSAM4SD16BA-AUR
| Pin 1 | PB0 — GPIO PB0 / PWM |
| Pin 2 | PB1 — GPIO PB1 / PWM |
| Pin 3 | PB2 — GPIO PB2 |
| Pin 4 | PB3 — GPIO PB3 |
| Pin 5 | VDDIN — Voltage regulator input supply |
| Pin 6 | VDDOUT — Voltage regulator output (1.2V core) |
| Pin 7 | VDP — USB D+ line |
| Pin 8 | VDM — USB D- line |
| Pin 9 | VDDIO — I/O supply voltage |
| Pin 10 | VSSIO — I/O ground |
| Pin 11 | PA0 — GPIO PA0 |
| Pin 12 | PA1 — GPIO PA1 |
| Pin 13 | PA2 — GPIO PA2 |
| Pin 14 | PA3 — GPIO PA3 |
| Pin 15 | PA4 — GPIO PA4 |
| Pin 16 | PA5 — GPIO PA5 |
| Pin 17 | PA6 — GPIO PA6 |
| Pin 18 | PA7 — GPIO PA7 |
| Pin 19 | PA8 — GPIO PA8 |
| Pin 20 | PA9 — GPIO PA9 |
| Pin 21 | PA10 — GPIO PA10 |
| Pin 22 | PA11 — GPIO PA11 |
| Pin 23 | PA12 — GPIO PA12 |
| Pin 24 | PA13 — GPIO PA13 |
| Pin 25 | PA14 — GPIO PA14 |
| Pin 26 | PA15 — GPIO PA15 |
| Pin 27 | PA16 — GPIO PA16 |
| Pin 28 | PA17 — GPIO PA17 |
| Pin 29 | PA18 — GPIO PA18 |
| Pin 30 | PA19 — GPIO PA19 |
| Pin 31 | PA20 — GPIO PA20 |
| Pin 32 | PA21 — GPIO PA21 |
| Pin 33 | PA22 — GPIO PA22 |
| Pin 34 | PA23 — GPIO PA23 |
| Pin 35 | PA24 — GPIO PA24 |
| Pin 36 | PA25 — GPIO PA25 |
| Pin 37 | PA26 — GPIO PA26 |
| Pin 38 | PA27 — GPIO PA27 |
| Pin 39 | PA28 — GPIO PA28 |
| Pin 40 | PA29 — GPIO PA29 |
| Pin 41 | PA30 — GPIO PA30 |
| Pin 42 | PA31 — GPIO PA31 |
| Pin 43 | PB4 — GPIO PB4 |
| Pin 44 | PB5 — GPIO PB5 |
| Pin 45 | PB6 — GPIO PB6 |
| Pin 46 | PB7 — GPIO PB7 |
| Pin 47 | PB8 — GPIO PB8 |
| Pin 48 | PB9 — GPIO PB9 |
| Pin 49 | PB10 — GPIO PB10 |
| Pin 50 | PB11 — GPIO PB11 |
| Pin 51 | PB12 — GPIO PB12 |
| Pin 52 | PB13 — GPIO PB13 |
| Pin 53 | PB14 — GPIO PB14 |
| Pin 54 | PB15 — GPIO PB15 |
| Pin 55 | PC0 — GPIO PC0 |
| Pin 56 | PC1 — GPIO PC1 |
| Pin 57 | PC2 — GPIO PC2 |
| Pin 58 | PC3 — GPIO PC3 |
| Pin 59 | PC4 — GPIO PC4 |
| Pin 60 | PC5 — GPIO PC5 |
| Pin 61 | PC6 — GPIO PC6 |
| Pin 62 | PC7 — GPIO PC7 |
| Pin 63 | NRST — Reset input (active low) |
| Pin 64 | VDDIO — I/O supply voltage |
Aplicaciones típicas
ATSAM4SD16BA-AUR es adecuado para 7 aplicacións: Industrial PLC I/O Modules, USB HID Peripheral Devices, Building Automation Gateways, BLDC Motor Control Inverters, Low-End HMI Touch Displays, Consumer Appliance Controllers, Data Acquisition and Logging.
Industrial PLC I/O Modules
The ATSAM4SD16BA-AUR fits PLC I/O modules because its Cortex-M4 core delivers deterministic 120 MHz execution with single-cycle MAC, ideal for IEC 61131-3 logic scans under 1 ms. The 1MB Flash stores ladder-logic interpreters plus firmware updates, while 128KB SRAM buffers real-time process variables. The 12-bit ADC with 8 channels reads 4-20 mA sensors via shunt resistors, and the 16-channel DMA offloads scan sampling from the CPU. Hardware PWM channels drive opto-isolated solid-state relays without CPU intervention. Operating from -40 C to +85 C, the part tolerates factory cabinet environments. Compared with a Cortex-M0 PLC MCU, the ATSAM4SD16BA-AUR adds DSP instructions for PID loops, eliminating a separate DSP chip and reducing BOM cost.
Recomendado
USB HID Peripheral Devices
The ATSAM4SD16BA-AUR is a strong fit for USB Human Interface Devices because it integrates a USB 2.0 Full-Speed device controller with on-chip transceiver, requiring only a 22 ohm series resistor pair and an ESD diode array. The 1MB Flash comfortably holds HID report descriptors plus composite device stacks (HID + CDC + MSD) without external memory. Its 120 MHz Cortex-M4 with FPU handles encryption for secure HID fobs, and the 16-channel DMA drives endpoint IN/OUT transfers without CPU cycles. Designers can implement 1000 Hz polling rate HID devices, while industrial temperature range supports outdoor or vehicle-mounted peripherals. The integrated 3.3V regulator simplifies bus-powered designs drawing less than 100 mA.
Recomendado
Building Automation Gateways
The ATSAM4SD16BA-AUR powers building-automation gateways by aggregating multiple field buses: TWI for sensor networks, USART for RS-485 Modbus, SPI for LoRa or Sub-GHz radios, and SSC for audio doorbell intercoms. The 1MB Flash stores BACnet, Modbus, and KNX protocol stacks concurrently, while 128KB SRAM buffers time-series telemetry. The Cortex-M4 FPU accelerates FFT-based audio beamforming for smart-speaker nodes. Low-power SleepWalking modes and the 1.62V minimum supply enable battery-backed wireless sensors lasting 5+ years on a single lithium cell. Industrial temperature rating ensures reliability in unheated attics and outdoor enclosures.
Recomendado
BLDC Motor Control Inverters
The ATSAM4SD16BA-AUR is well suited to BLDC motor inverters because its Cortex-M4 single-cycle MAC accelerates field-oriented control (FOC) loops running at 20 kHz PWM. Hardware PWM channels with complementary outputs and programmable dead-time drive three-phase gate drivers directly, eliminating external logic. The 12-bit 1Msps ADC samples phase currents synchronously to PWM, and DMA streams samples to SRAM without CPU stalls. With 1MB Flash, designers embed sensorless back-EMF observers plus torque-ripple compensation tables. Industrial temperature and 1.62-3.6V supply tolerate 24V industrial bus transients after pre-regulation. Pair with external gate drivers for IGBT/MOSFET inverter stages.
Recomendado
Low-End HMI Touch Displays
The ATSAM4SD16BA-AUR drives low-end HMI panels by rendering UI screens on small TFT displays via the SPI-controlled LCD interface plus SSC audio for beeps. Its 120 MHz Cortex-M4 with FPU draws smooth 2D widgets and antialiased fonts without external GPU. The 128KB SRAM holds frame buffers up to QVGA (320x240) at 16 bpp. The 12-bit ADC reads touch-screen resistive overlays, and PWM channels dim backlight LEDs. With 1MB Flash, designers embed graphical assets plus multi-language strings. Industrial temperature makes it suitable for factory-floor operator panels, and the 64-LQFP eases hand-rework during prototype bring-up.
Recomendado
Consumer Appliance Controllers
The ATSAM4SD16BA-AUR fits consumer appliance controllers (washing machines, dishwashers, induction cooktops) because its Cortex-M4 core plus 1MB Flash stores motor-control algorithms, user-interface state machines, and safety monitor firmware. Multiple PWM outputs drive triac-fired heater elements or variable-frequency motor drives, while the 12-bit ADC monitors current sensors for load detection. USB Full-Speed enables firmware update ports or diagnostic interfaces in service mode. With -40 C to +85 C industrial temperature rating, the device handles under-cabinet heat in appliances. Its 64-LQFP eases hand-assembly and rework versus QFN alternatives.
Recomendado
Data Acquisition and Logging
The ATSAM4SD16BA-AUR powers industrial data loggers because its 12-bit 1Msps ADC captures fast transient signals while DMA streams into 128KB SRAM buffers. With 1MB Flash, designers store hours of compressed telemetry locally before USB or SD-card offload. The Cortex-M4 FPU accelerates FFT spectral analysis for vibration monitoring applications. Three USART channels interface to GPS, cellular modems, and RS-485 field buses concurrently. Industrial temperature operation ensures reliable cold-storage and outdoor weather-station deployments. RTC with backup register region preserves timestamps through brown-out events, and the integrated watchdog prevents lockup in unattended remote installations.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para ATSAM4SD16BA-AUR — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | ATSAM4SA16BA-AUR | ATSAM4SD16BA-AU | ATSAM4SD16BA-ANR | ATSAM4SA16CA-AUR |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | LQFP-64 (10x10 mm) | LQFP-64 (10x10 mm) | LQFP-64 (10x10 mm) | LQFP-64 (10x10 mm) | LQFP-64 (10x10 mm) |
| Core | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU |
| Maximum Clock | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| Flash Memory | 1 MB | 1 MB | 1 MB | 1 MB | 1 MB |
| SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| USB 2.0 | Yes (Full-Speed Device/Host) | No | Yes (Full-Speed Device/Host) | Yes (Full-Speed Device/Host) | No |
| 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 |
| Packing Media | Tape and Reel (1500) | Tape and Reel | Tray | Tape and Reel | Tape and Reel |
Diferenciadores clave
- Integrated USB 2.0 Full-Speed controller (frente a ATSAM4SA16BA-AUR)
- 1MB Flash with multi-bit ECC (frente a ATSAM4S16C (512KB Flash))
- Industrial temperature range (-40 C to +85 C) (frente a ATSAM4SD16BA-AU (industrial temp, tray))
- 120 MHz Cortex-M4 with FPU and DSP extensions (frente a ATSAM4S8CA-AU (no FPU, lower Flash))
Notas de diseño
Decouple VDDIN (pin 5) with a 4.7 uF X7R ceramic plus a 100 nF X7R placed within 3 mm of the pin. Place a separate 100 nF on each VDDIO pin (9, 64) and on VDDCORE (pin 6). The internal regulator requires a minimum 1 uF output capacitance on VDDCORE; use low-ESR ceramic such as GRM188R71C105KA12D. Power sequencing is not required - the on-chip regulator handles arbitrary VDDIN ramp rates.
Route the 12 MHz or 16 MHz crystal traces (XIN/XOUT) symmetrically with ground guard rings to minimise jitter. Keep crystal traces under 5 mm length and away from switching nodes such as PWM outputs and USB DP/DM. The 64-LQFP allows hand-rework, but a 4-layer PCB with continuous ground plane is recommended for industrial EMC compliance. Place the USB ESD diode array within 3 mm of the USB connector with 90 ohm differential impedance on DP/DM traces.
Configure Flash wait-states in EEFC_FCR before raising the system clock above 30 MHz - missing wait-states cause silent fetch corruption under DMA load. Apply the SAM4S device errata workarounds: enable the supply controller SUPC after every WKUP event, and clear the RSTC status register after power-on to avoid false brown-out interrupts. Lock the Flash region with GPNVM bits before deploying firmware in safety-critical applications.
At 120 MHz CPU clock the ATSAM4SD16BA-AUR consumes roughly 30 mA from VDDIN at 3.3V (estimated, based on typical SAM4S power figures; confirm via datasheet Electrical Characteristics section). The 64-LQFP has a theta_JA around 50 C/W on a 4-layer JEDEC test board, producing a 30 C rise above ambient at full load. Industrial temperature operation is comfortably supported without a heatsink, but mounting on a small copper pour further reduces die temperature in enclosed enclosures.
The USB DP/DM pair requires 90 ohm differential impedance and a 22 ohm series resistor at each pin per USB 2.0 specification. Place the series resistors within 4 mm of the MCU pins. For SSC audio, route I2S signals on a separate ground-referenced layer with matched trace lengths within 25 mm to maintain < 5 ns skew. JTAG/SWD lines (TCK, TMS, TDI, TDO, NRST) should be 50 ohm single-ended and pulled up/down per the SAM4S debug specification.
Información de cumplimiento
RoHS Green compliant per Microchip product page. Industrial temperature range -40C to +85C standard. AEC-Q100 automotive qualified variants available as separate SAM4SD16C part numbers. Country of origin: China or Philippines per Microchip Direct listing.
