ATSAM4SD32BB-UUR - 2MB Flash Cortex-M4 MCU | Microchip
Référence : ATSAM4SD32BB-UUR ✓ Actif| Qté | Prix unitaire | 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 Présentation
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.
Alternatives de remplacement direct pour ATSAM4SD32BB-UUR — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec ATSAM4SD32BB-UUR (même facteur de forme et même empreinte) — différant par Package, ADC, Flash Memory, SRAM, Mounting Type.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATSAM4SD32BA-UUR
✅ Remplacement direct✓ En stock
$9.15 / unité
Voir la fiche technique →ATSAM4SD32BB-MNR
✅ Remplacement direct✓ En stock
$7.55 / unité
Voir la fiche technique →ATSAM4SD16BA-MUR
✅ Remplacement direct✓ En stock
$7.21 / unité
Voir la fiche technique →ATSAM4S8BB-UUR
✅ Remplacement direct✓ En stock
$3.05 / unité
Voir la fiche technique →ATSAM4S2BB-UUR
✅ Remplacement direct✓ En stock
$2.38 / unité
Voir la fiche technique →ATSAM4SD32BB-UUR Valeurs maximales et caractéristiques électriques
| Core | ARM Cortex-M4 with FPU |
| Fréquence d'horloge maximale | 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 |
| Température de fonctionnement | -40C to +85C (Industrial) |
| Boîtier | 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 |
| Statut RoHS | Compliant |
Guide de configuration des broches du ATSAM4SD32BB-UUR 64-ball wlcsp / ufbga (cs, industrial)
Configuration des broches du ATSAM4SD32BB-UUR (boîtier 64-ball wlcsp / ufbga (cs, industrial)). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour ATSAM4SD32BB-UUR.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
ATSAM4SD32BB-UUR convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATSAM4SD32BB-UUR — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- 2 MB flash is the largest in the WLCSP-64 SAM4SD family (vs ATSAM4SD16BA-MUR)
- Revision B silicon incorporates latest errata fixes (vs ATSAM4SD32BA-UUR)
- Combined on-chip USB FS PHY + Ethernet MAC in WLCSP-64 (vs ATSAM4S8BB-UUR)
Notes de conception
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.
Informations de conformité
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.
