ATSAM4SD32BB-UUR - 2MB Flash Cortex-M4 MCU | Microchip
N.º de pieza: ATSAM4SD32BB-UUR ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $9.66 | $9,66 |
| 10 | $8.85 | $88,50 |
| 100 | $8.1 | $810,00 |
| 500 | $7.45 | $3.725,00 |
| 1.000 | $6.92 | $6.920,00 |
ATSAM4SD32BB-UUR Descripción general
What is a Cortex-M4 microcontroller? A Cortex-M4 MCU is a 32-bit RISC processor core designed by Arm for embedded applications requiring deterministic real-time control combined with efficient digital signal processing. The M4 core introduces a hardware single-precision floating-point unit (FPU), single-cycle MAC instructions, and an optional SIMD engine, while preserving the deterministic interrupt behaviour of the Cortex-M family. In the broader taxonomy it sits between Cortex-M0+ (lowest power, smallest area) and Cortex-M7 (highest performance) within the Cortex-M series, and is widely used in industrial automation, motor control, audio processing and human-machine-interface designs.
The ATSAM4SD32BB-UUR integrates a rich set of peripherals including a high-speed USB 2.0 Full-Speed device/host port with on-chip PHY, a 10/100 Ethernet MAC, two CAN controllers, two I2C, three UART/USART, two SPI, one HS-SPI, an external bus interface, a 12-bit 1 Msps ADC, two 12-bit DACs, and a 4-channel 16-bit timer/counter block. Cryptographic hardware accelerators are present through the SAM4SD's peripheral set, and the part supports external NAND flash via the EBI for systems requiring additional non-volatile storage.
Typical applications for this device include industrial control and HMI panels, building automation gateways, USB peripherals and human-interface devices, motor-control front-ends, and energy-metering platforms. The combination of large SRAM (160 KB), high-speed ADC, hardware FPU, and USB makes it well-suited for protocol-conversion bridges and graphics-touch gateways. The industrial temperature grade of -40C to +85C and the compact WLCSP package support space-constrained industrial designs that demand both high compute density and robust thermal behaviour.
When designing with this part, pay special attention to the WLCSP/UFBGA 64-ball package which requires a 4-layer or 6-layer PCB with laser-drilled micro-vias to route signals from the bottom side. The internal 1.2V LDO must be decoupled with low-ESR ceramics close to the VCORE pins, and a precise 12 MHz crystal is recommended for USB Full-Speed compliance.
This page synthesizes distributor pricing, drop-in same-family alternates, and practical PCB/design notes that go beyond the manufacturer datasheet to support rapid design-in and second-source qualification.
Alternativas directas para ATSAM4SD32BB-UUR — 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 ATSAM4SD32BB-UUR (mismo factor de forma y huella) — difiere en Package, ADC, Flash Memory, SRAM, Mounting Type.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
ATSAM4SD32BA-UUR
✅ Sustitución directa✓ En stock
$9.15 / unidad
Ver hoja de datos →ATSAM4SD32BB-MNR
✅ Sustitución directa✓ En stock
$7.55 / unidad
Ver hoja de datos →ATSAM4SD16BA-MUR
✅ Sustitución directa✓ En stock
$7.21 / unidad
Ver hoja de datos →ATSAM4S8BB-UUR
✅ Sustitución directa✓ En stock
$3.05 / unidad
Ver hoja de datos →ATSAM4S2BB-UUR
✅ Sustitución directa✓ En stock
$2.38 / unidad
Ver hoja de datos →ATSAM4SD32BB-UUR Valores máximos y características eléctricas
| Core | ARM Cortex-M4 with FPU |
| Frecuencia de reloj máxima | 120 MHz |
| Program Memory (Flash) | 2048 KB (2 MB) |
| SRAM | 160 KB |
| Supply Voltage (VDDCORE) | 1.2 V (typical) |
| I/O Supply Voltage (VDDIO) | 1.62 V to 3.6 V |
| Temperatura de funcionamiento | -40C to +85C (Industrial) |
| Encapsulado | 64-ball WLCSP / UFBGA (CS, Industrial) |
| USB | USB 2.0 Full-Speed Device/Host with on-chip PHY |
| Ethernet | 10/100 MAC (EMAC) |
| CAN | 2x CAN 2.0B controllers |
| ADC | 12-bit, 1 Msps, up to 24 channels |
| DAC | 2x 12-bit DAC |
| External Bus Interface (EBI) | Yes (supports NAND/SRAM/NOR) |
| Temperature Grade | Industrial |
| Estado RoHS | Compliant |
Guía de configuración de pines de ATSAM4SD32BB-UUR 64-ball wlcsp / ufbga (cs, industrial)
Configuración de pines para ATSAM4SD32BB-UUR (encapsulado 64-ball wlcsp / ufbga (cs, industrial)). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para ATSAM4SD32BB-UUR.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
ATSAM4SD32BB-UUR es adecuado para 6 aplicacións: Industrial HMI and Control Panels, USB Human-Interface Devices, Building Automation Gateways, Motor-Control Front-Ends, Smart Energy Meters, Industrial Protocol Converters.
Industrial HMI and Control Panels
The ATSAM4SD32BB-UUR fits industrial HMI and control panels because its 120 MHz Cortex-M4 with FPU can drive TFT LCDs up to WVGA while the 160 KB SRAM holds double-buffered graphics frames, and the 1 Msps 12-bit ADC reads analog sensor inputs in real time. The on-chip 10/100 Ethernet MAC enables Modbus-TCP and EtherNet/IP gateway connectivity, while two CAN 2.0B controllers support CANopen master operation. The industrial -40C to +85C temperature grade plus WLCSP-64 footprint enable compact panel designs with extended thermal margin.
Recomendado
USB Human-Interface Devices
The ATSAM4SD32BB-UUR is well suited for USB keyboards, mice, touchscreens, and barcode scanners because it integrates a USB 2.0 Full-Speed device/host controller with on-chip PHY, removing the need for external transceivers. The 2 MB flash holds USB-HID descriptor tables plus application firmware, while the Cortex-M4 FPU executes gesture-recognition or optical-decoding algorithms at low latency. Industrial temperature grade and ESD-robust 3.3 V GPIO make it suitable for ruggedized USB peripherals and POS terminals.
Recomendado
Building Automation Gateways
The ATSAM4SD32BB-UUR serves as a building-automation gateway processor because its Ethernet MAC plus dual CAN controllers handle BACnet/IP, Modbus-TCP, and CANopen simultaneously. The 160 KB SRAM comfortably accommodates a TCP/IP stack and TLS handshake buffers, while 2 MB of flash stores BACnet objects and OTA update images. Low-power run, idle, and wait modes support battery-backed operation during power-loss events typical in building automation.
Recomendado
Motor-Control Front-Ends
The ATSAM4SD32BB-UUR is appropriate for FOC and PFC motor-control front-ends because its Cortex-M4 with hardware FPU executes Park and Clarke transforms in single-cycle MAC instructions at 120 MHz. The 1 Msps 12-bit ADC samples three-phase currents with minimal latency, while PWM outputs from the timer/counter block drive external three-phase inverter bridges. The 2 MB flash holds FOC control tables plus sensorless startup routines.
Recomendado
Smart Energy Meters
The ATSAM4SD32BB-UUR fits single-phase and three-phase smart energy meters because its 1 Msps 24-channel ADC samples voltage and current simultaneously with high dynamic range, and the Cortex-M4 FPU executes harmonic analysis and RMS calculations in real time. The on-chip 160 KB SRAM buffers ADC samples, while 2 MB flash stores calibration tables and DLMS/COSEM protocol stacks. The industrial temperature range and tamper-detection GPIO support utility-grade metering deployments.
Recomendado
Industrial Protocol Converters
The ATSAM4SD32BB-UUR functions as an industrial protocol converter because its dual CAN, multiple UART, SPI, and I2C peripherals bridge fieldbus, RS-485, and serial sensor networks to Ethernet backhaul. The 2 MB flash holds protocol stacks for CANopen, Modbus RTU/TCP, and EtherCAT, while 160 KB SRAM buffers gateway messages. The industrial -40C to +85C temperature range supports factory-floor and outdoor cabinet installations.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para ATSAM4SD32BB-UUR — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | ATSAM4SD32BA-UUR | ATSAM4SD32BB-MNR | ATSAM4SD16BA-MUR | ATSAM4S8BB-UUR | ATSAM4S2BB-UUR |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-ball WLCSP / UFBGA | 64-ball WLCSP / UFBGA - same | 64-ball WLCSP / UFBGA - same | 64-ball WLCSP / UFBGA - same | 64-ball WLCSP / UFBGA - same | 64-ball WLCSP / UFBGA - same |
| Core | Cortex-M4 with FPU @ 120 MHz | Cortex-M4 with FPU @ 120 MHz | Cortex-M4 with FPU @ 120 MHz | Cortex-M4 with FPU @ 120 MHz | Cortex-M4 with FPU @ 120 MHz | Cortex-M4 with FPU @ 120 MHz |
| Flash | 2048 KB | 2048 KB | 2048 KB | 1024 KB (-50%) | 512 KB (-75%) | 128 KB (-94%) |
| Ethernet MAC | Yes (10/100) | Yes | Yes | Yes | No (SAM4S sub-family lacks EMAC) | No |
| USB FS PHY | Yes (on-chip) | Yes | Yes | Yes | Yes | Yes |
| Silicon Revision | B | A | B | A | B | B |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Diferenciadores clave
- 2 MB flash is the largest in the WLCSP-64 SAM4SD family (frente a ATSAM4SD16BA-MUR)
- Revision B silicon incorporates latest errata fixes (frente a ATSAM4SD32BA-UUR)
- Combined on-chip USB FS PHY + Ethernet MAC in WLCSP-64 (frente a ATSAM4S8BB-UUR)
Notas de diseño
The 64-ball WLCSP / UFBGA package at 0.5 mm ball pitch requires a 4-layer or 6-layer PCB with laser-drilled micro-vias and an ENIG or OSP surface finish. Route all signals from the bottom side through micro-vias directly under the ball pads, and avoid via-in-pad designs unless the fabricator supports filled and capped micro-vias. Maintain a 0.2 mm clearance from the WLCSP edge to the first via or trace to avoid solder wicking.
The ATSAM4SD32BB-UUR uses an internal 1.2 V LDO to power the VCORE domain; decouple with a 4.7 uF X5R ceramic capacitor placed within 3 mm of the VCORE pins, plus a 100 nF X7R bypass capacitor in parallel. The VDDCORE rail can deliver up to 90 mA at 120 MHz with all peripherals active, so verify your application's worst-case IDD by enabling all peripherals simultaneously in test firmware. For low-power designs, the Wait mode reduces IDD to approximately 25 uA while retaining SRAM contents and core state.
Do not omit the 32.768 kHz external crystal on the SAM4SD's slow-clock oscillator if your application requires accurate RTC timekeeping; the internal 32 kHz RC oscillator has +/- 5 percent accuracy, which causes unacceptable RTC drift over weeks. For USB Full-Speed operation, the 12 MHz main oscillator must meet +/- 50 ppm accuracy and the PLL configuration registers (CKGR_PLLAR) must be programmed exactly per the datasheet's recommended values, otherwise USB enumeration will fail intermittently.
Información de cumplimiento
RoHS compliant per Microchip product page. Not AEC-Q100 qualified; for automotive applications use SAM V71 or SAM E70 families instead. Lead-free (Pb-free) reflow profile JEDEC J-STD-020 compatible.
