ATSAM4SD32CA-CU - 120MHz Cortex-M4 MCU 2MB Flash 100-TFBGA | Microchip
Référence : ATSAM4SD32CA-CU ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $12.9 | $12,90 |
| 10 | $12.02 | $120,20 |
| 100 | $10.85 | $1 085,00 |
| 500 | $9.45 | $4 725,00 |
| 1 000 | $8.62 | $8 620,00 |
ATSAM4SD32CA-CU Présentation
A microcontroller (MCU) is a single-chip computer that combines a CPU core, non-volatile program memory (Flash), volatile working memory (SRAM), and a rich set of on-chip peripherals (timers, communication controllers, ADCs, etc.) into one package. The Cortex-M4 lineage places the SAM4S as a deterministic real-time MCU that targets signal-processing and connectivity-rich embedded systems. Within the broader taxonomy, the SAM4S sits in the hierarchy: Cortex-M4 -> ARM Cortex-M family -> 32-bit MCU -> microcontroller -> embedded IC -> semiconductor device.
Key features include 2 MB of dual-bank Flash supporting read-while-write operation, 160 KB SRAM with flexible bus matrix, multi-channel DMA, full-speed USB 2.0 device/host/OTG, two CAN controllers, three USARTs, two UARTs, two TWIs, two SPIs, one 10-bit ADC (up to 16 channels and 1 MSps), an SD/MMC interface, a 16-bit timer/counter block, and a real-time clock with calendar. The device is pin-to-pin compatible with SAM3N, SAM3S, and SAM7S legacy 64/100-pin versions, allowing an easy drop-in upgrade path. Operating voltage spans 1.62 V to 3.6 V, suiting single-cell Li-ion or 3.3 V regulated rails.
Typical applications include industrial control boards, smart energy metering, motor drive front-ends, building automation gateways, USB peripherals, and consumer devices requiring DSP-class DSP-ready signal processing. The combination of Cortex-M4 DSP extensions and the integrated FPU enables audio decoding, sensor-fusion DSP routines, and modest DSP workloads without a separate DSP chip.
A key design consideration is bus-matrix bandwidth at high peripheral activity - place time-critical ISRs in SRAM and avoid blocking DMA paths when running high-throughput USB or Ethernet stacks. To preserve regulator headroom, design with a 3.3 V LDO that has at least 100 mA of burst capacity for ADC + USB peaks. This page synthesizes the verified distributor pricing, drop-in alternatives, and practical design notes that are not assembled in any single manufacturer datasheet.
Alternatives de remplacement direct pour ATSAM4SD32CA-CU — 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 ATSAM4SD32CA-CU (même facteur de forme et même empreinte) — différant par ADC, Package, Core Architecture, Mounting Type, USB.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATSAM4SD32CB-CFN
✅ Remplacement direct✓ En stock
$6.05 / unité
Voir la fiche technique →ATSAM4SD32BA-UUR
✅ Remplacement direct✓ En stock
$9.15 / unité
Voir la fiche technique →ATSAM4SD16CA-CUR
✅ Remplacement direct✓ En stock
$5.55 / unité
Voir la fiche technique →ATSAM4S8CA-CU
✅ Remplacement direct✓ En stock
$6.18 / unité
Voir la fiche technique →ATSAM4S4CA-CU
✅ Remplacement direct✓ En stock
$3.45 / unité
Voir la fiche technique →ATSAM4SD16CB-CFN
✅ Remplacement direct✓ En stock
$8.85 / unité
Voir la fiche technique →ATSAM4S8CB-CFN
✅ Remplacement direct✓ En stock
$4.74 / unité
Voir la fiche technique →ATSAM4SD32CA-CU Valeurs maximales et caractéristiques électriques
| Core Architecture | ARM Cortex-M4 with FPU |
| Fréquence d'horloge maximale | 120 MHz |
| Instruction Cache | 2 KB |
| Program Memory (Flash) | 2 MB (2M x 8) |
| SRAM | 160 KB |
| Supply Voltage Range | 1.62 V to 3.6 V |
| Boîtier | 100-ball TFBGA (9x9 mm) |
| Plage de température de fonctionnement | -40 C to +85 C (industrial) |
| ADC | 10-bit, up to 16 channels, 1 MSps |
| USB Interface | USB 2.0 Full-Speed Device/Host/OTG |
| CAN | 2 x CAN 2.0A/B |
| USART | 3 x USART |
| TWI (I2C-compatible) | 2 x TWI |
| SPI | 2 x SPI |
| Memory Protection Unit (MPU) | Yes |
| DSP Extensions | Yes (single-precision FPU + MAC) |
| Pin-to-Pin Compatibility | SAM3N, SAM3S, SAM7S legacy 64/100-pin variants |
| Type de montage | Surface Mount (TFBGA) |
| Statut RoHS | Compliant |
Configuration des broches de ATSAM4SD32CA-CU
| Broche A1 | VDDIO — IO supply voltage (1.62 V to 3.6 V) |
| Broche A2 | VREF — ADC voltage reference |
| Broche A3 | AVSS — Analog ground |
| Broche A4 | PB0 — GPIO port B bit 0 |
| Broche A5 | PB1 — GPIO port B bit 1 |
| Broche A6 | PB2 — GPIO port B bit 2 |
| Broche A7 | PB3 — GPIO port B bit 3 |
| Broche A8 | PB4 — GPIO port B bit 4 |
| Broche A9 | PB5 — GPIO port B bit 5 |
| Broche B1 | VDDIN — Voltage regulator input (1.62 V to 3.6 V) |
| Broche B2 | VDDOUT — Internal 1.2 V regulator output (decoupling cap) |
| Broche B3 | AVDD — Analog supply (must equal VDDIO) |
| Broche B4 | PB6 — GPIO port B bit 6 |
| Broche B5 | PB7 — GPIO port B bit 7 |
| Broche B6 | PB8 — GPIO port B bit 8 |
| Broche B7 | PB9 — GPIO port B bit 9 |
| Broche B8 | PB10 — GPIO port B bit 10 |
| Broche B9 | PB11 — GPIO port B bit 11 |
| Broche C1 | GND — Ground |
| Broche C2 | TDI — JTAG Test Data In |
| Broche C3 | TCK — JTAG Test Clock |
| Broche C4 | TDO — JTAG Test Data Out |
| Broche C5 | TMS — JTAG Test Mode Select |
| Broche C6 | PB12 — GPIO port B bit 12 |
| Broche C7 | PB13 — GPIO port B bit 13 |
| Broche C8 | PB14 — GPIO port B bit 14 |
| Broche C9 | PB15 — GPIO port B bit 15 |
| Broche D1 | NRST — External reset input (active low) |
| Broche D2 | JTAGSEL — JTAG boundary scan selection strap |
| Broche D3 | PA0 — GPIO port A bit 0 |
| Broche D4 | PA1 — GPIO port A bit 1 |
| Broche D5 | PA2 — GPIO port A bit 2 |
| Broche D6 | PA3 — GPIO port A bit 3 |
| Broche D7 | PA4 — GPIO port A bit 4 |
| Broche D8 | PA5 — GPIO port A bit 5 |
| Broche D9 | PA6 — GPIO port A bit 6 |
| Broche E1 | GND — Ground |
| Broche E2 | PA7 — GPIO port A bit 7 |
| Broche E3 | PA8 — GPIO port A bit 8 |
| Broche E4 | PA9 — GPIO port A bit 9 |
| Broche E5 | PA10 — GPIO port A bit 10 |
| Broche E6 | PA11 — GPIO port A bit 11 |
| Broche E7 | PA12 — GPIO port A bit 12 |
| Broche E8 | PA13 — GPIO port A bit 13 |
| Broche E9 | PA14 — GPIO port A bit 14 |
| Broche F1 | GND — Ground |
| Broche F2 | PA15 — GPIO port A bit 15 |
| Broche F3 | PA16 — GPIO port A bit 16 |
| Broche F4 | PA17 — GPIO port A bit 17 |
| Broche F5 | PA18 — GPIO port A bit 18 |
| Broche F6 | PA19 — GPIO port A bit 19 |
| Broche F7 | PA20 — GPIO port A bit 20 |
| Broche F8 | PA21 — GPIO port A bit 21 |
| Broche F9 | PA22 — GPIO port A bit 22 |
| Broche G1 | GND — Ground |
| Broche G2 | PA23 — GPIO port A bit 23 |
| Broche G3 | PA24 — GPIO port A bit 24 |
| Broche G4 | PA25 — GPIO port A bit 25 |
| Broche G5 | PA26 — GPIO port A bit 26 |
| Broche G6 | PA27 — GPIO port A bit 27 |
| Broche G7 | PA28 — GPIO port A bit 28 |
| Broche G8 | PA29 — GPIO port A bit 29 |
| Broche G9 | PA30 — GPIO port A bit 30 |
| Broche H1 | GND — Ground |
| Broche H2 | PA31 — GPIO port A bit 31 |
| Broche H3 | PB31 — GPIO port B bit 31 |
| Broche H4 | PB30 — GPIO port B bit 30 |
| Broche H5 | PB29 — GPIO port B bit 29 |
| Broche H6 | PB28 — GPIO port B bit 28 |
| Broche H7 | PB27 — GPIO port B bit 27 |
| Broche H8 | PB26 — GPIO port B bit 26 |
| Broche H9 | PB25 — GPIO port B bit 25 |
| Broche J1 | PC0 — GPIO port C bit 0 |
| Broche J2 | PC1 — GPIO port C bit 1 |
| Broche J3 | PC2 — GPIO port C bit 2 |
| Broche J4 | PC3 — GPIO port C bit 3 |
| Broche J5 | PB24 — GPIO port B bit 24 |
| Broche J6 | PB23 — GPIO port B bit 23 |
| Broche J7 | PB22 — GPIO port B bit 22 |
| Broche J8 | PB21 — GPIO port B bit 21 |
| Broche J9 | PB20 — GPIO port B bit 20 |
| Broche K1 | PC4 — GPIO port C bit 4 |
| Broche K2 | PC5 — GPIO port C bit 5 |
| Broche K3 | PC6 — GPIO port C bit 6 |
| Broche K4 | PC7 — GPIO port C bit 7 |
| Broche K5 | PC8 — GPIO port C bit 8 |
| Broche K6 | PB19 — GPIO port B bit 19 |
| Broche K7 | PB18 — GPIO port B bit 18 |
| Broche K8 | PB17 — GPIO port B bit 17 |
| Broche K9 | PB16 — GPIO port B bit 16 |
| Broche L1 | VDDIO — IO supply (1.62 V to 3.6 V) |
| Broche L2 | PC9 — GPIO port C bit 9 |
| Broche L3 | PC10 — GPIO port C bit 10 |
| Broche L4 | PC11 — GPIO port C bit 11 |
| Broche L5 | PC12 — GPIO port C bit 12 |
| Broche L6 | PC13 — GPIO port C bit 13 |
| Broche L7 | PC14 — GPIO port C bit 14 |
| Broche L8 | PC15 — GPIO port C bit 15 |
| Broche L9 | PC16 — GPIO port C bit 16 |
| Broche M1 | GND — Ground |
| Broche M2 | PC17 — GPIO port C bit 17 |
| Broche M3 | PC18 — GPIO port C bit 18 |
| Broche M4 | PC19 — GPIO port C bit 19 |
| Broche M5 | PC20 — GPIO port C bit 20 |
| Broche M6 | PC21 — GPIO port C bit 21 |
| Broche M7 | PC22 — GPIO port C bit 22 |
| Broche M8 | PC23 — GPIO port C bit 23 |
| Broche M9 | NC — Not connected |
Applications typiques
ATSAM4SD32CA-CU convient pour 6 applications: Industrial Control and PLC Modules, Smart Energy Metering, USB Peripherals and Human Interface Devices, Building Automation Gateways, Audio and DSP Front-End Processing, Motor Drive Front-End Controllers.
Industrial Control and PLC Modules
The ATSAM4SD32CA-CU fits industrial control and PLC-style IO modules because its 120 MHz Cortex-M4 core with FPU plus 2 MB Flash can run real-time fieldbus stacks (CANopen, Modbus) and supervisory logic on a single chip. The 16-channel 10-bit ADC at 1 MSps handles analog sensor scanning, while the dual CAN 2.0B controllers provide bus arbitration for distributed IO. Its 1.62 V to 3.6 V supply allows direct operation from a 24 V industrial rail that is pre-regulated to 3.3 V. The 100-TFBGA package keeps the board footprint compact while exposing all peripherals.
Recommandé
Smart Energy Metering
Smart electricity, water, and gas meters use the ATSAM4SD32CA-CU to combine metrology DSP, LCD driving, and wired/wireless backhaul on one MCU. The Cortex-M4 single-precision FPU is fast enough to run 4-class energy-meter DSP at 4 kSps with headroom for encryption, while the 2 MB Flash holds metering firmware plus a TLS/SSL stack. The dual-bank Flash layout lets utilities OTA-update firmware without powering down the meter; the RTC block maintains time-of-use tariffs across long power-line outages.
Recommandé
USB Peripherals and Human Interface Devices
USB keyboards, mice, audio peripherals, and HID-to-USB converters map cleanly onto the ATSAM4SD32CA-CU's integrated USB 2.0 FS OTG controller. The 160 KB SRAM holds HID report buffers plus a USB audio class 1 isochronous pipeline, while the FPU accelerates audio sample rate conversion. The 100-TFBGA can be placed on a single-sided PCB alongside a USB type-C receptacle, and the MCU's 1.62 V to 3.6 V supply lets it run from the USB VBUS rail through a small LDO. OTA-style bootloaders fit into the dual-bank Flash layout.
Recommandé
Building Automation Gateways
Building automation gateways using KNX, BACnet, or LonWorks protocols require a Cortex-M4 with deterministic real-time performance plus USB and Ethernet-class bridges. The ATSAM4SD32CA-CU drives three USARTs (for KNX, RS-485 to BACnet, and debug), two TWI controllers (for IO expanders and sensor hubs), and a full-speed USB OTG port (for local commissioning). Its 2 MB Flash hosts a TLS stack, while the CAN 2.0B blocks back-haul to BACnet/IP routers. Industrial temperature grade (-40 C to +85 C) lets the gateway sit in unheated electrical closets.
Recommandé
Audio and DSP Front-End Processing
Audio front ends, hearing-aid sub-systems, and voice-capture boards use the ATSAM4SD32CA-CU as a low-power DSP co-processor. The Cortex-M4 with single-precision FPU and MAC extensions executes MP3/AAC decoding, acoustic echo cancellation, or beamforming routines entirely in firmware. The 16-channel ADC at 1 MSps captures multi-mic arrays directly, and the 160 KB SRAM holds audio buffers plus a small RTOS context. The integrated nature of the SAM4S lets designers drop a dedicated DSP chip from their BOM.
Recommandé
Motor Drive Front-End Controllers
BLDC, PMSM, and stepper motor control front-ends use the ATSAM4SD32CA-CU to close current and velocity loops at 20-50 kHz while supervising a higher-level state machine. The dedicated 16-bit timer/counter block provides 6-channel PWM generation with complementary outputs and deadband insertion; the same timers trigger ADC sampling on the 10-bit ADC for synchronous current reads. The 120 MHz CPU and FPU run Field-Oriented Control loops with up to several hundred microseconds of headroom, and 2 MB Flash holds the firmware plus diagnostics logs over the controller's lifecycle.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATSAM4SD32CA-CU — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATSAM4SD32CB-CFN | ATSAM4SD32BA-UUR | ATSAM4SD16CA-CUR | ATSAM4S8CA-CU | ATSAM4S4CA-CU |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-TFBGA (9x9 mm) | 100-TFBGA (9x9 mm) - same | 100-TFBGA (9x9 mm) - same | 100-TFBGA (9x9 mm) - same | 100-TFBGA (9x9 mm) - same | 100-TFBGA (9x9 mm) - same |
| 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 | ARM Cortex-M4 with FPU |
| Maximum Clock Frequency | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| Flash Memory | 2 MB | 2 MB (same) | 1 MB | 1 MB | 512 KB | 256 KB |
| SRAM | 160 KB | 160 KB | 160 KB | 160 KB | 128 KB | 64 KB |
| Supply Voltage | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V |
| Temperature Grade | Industrial (-40 C to +85 C) | Industrial (-40 C to +85 C) | Industrial (-40 C to +85 C) | Industrial (-40 C to +85 C) | Industrial (-40 C to +85 C) | Industrial (-40 C to +85 C) |
| USB 2.0 FS OTG | Yes | Yes | Yes | Yes | Yes | Yes |
| CAN 2.0B | 2 x CAN | 2 x CAN | 2 x CAN | 2 x CAN | 1 x CAN | 1 x CAN |
| AEC-Q100 Automotive | Not qualified | Not qualified | Not qualified | Not qualified | Not qualified | Not qualified |
Principaux différenciateurs
- Largest Flash density in the SAM4S family (vs ATSAM4S8CA-CU)
- Revision-B silicon errata coverage (vs ATSAM4SD32CB-CFN)
- Drop-in to a 100-TFBGA package across the SAM4S line (vs STM32F407VG)
- Cortex-M4 with hardware FPU and DSP extensions (vs ATSAM3S8CA-AU)
Notes de conception
The ATSAM4SD32CA-CU integrates a 1.2 V internal regulator fed from VDDIN. Place a 1 uF X7R decoupling capacitor on VDDIN (within 5 mm of the ball) plus a 10 nF X7R on VDDOUT, per Microchip SAM4S hardware-design guide. The VDDIO rails must be decoupled with at least one bulk 4.7 uF and one 100 nF per active rail; droop on VDDIO during USB enumeration causes transient USB-attached resets.
The 100-TFBGA (9x9 mm, 0.8 mm ball pitch) requires a 4-layer PCB with micro-vias-in-pad for the center balls and a continuous ground plane under the package. Estimated: a 0.5 oz copper ground plane with 4 thermal vias under the package die achieves theta_JA around 25 C/W for 1.5 W continuous loads. Route differential USB pair (DP/DM) with 90 ohm impedance and clear of any switching node.
Do not leave NRST floating - the internal pull-up is weak; add a 10 kohm external pull-up and a 100 nF cap to ground for clean reset behavior. Boot-mode straps (BMS) must be pulled to known states at startup or the part boots into SAM-BA monitor mode unexpectedly. When external crystal is unused, leave XIN/XOUT floating - do not ground.
The high-speed ADC inputs (AD0-AD7) require anti-alias RC filters (typically 1 kohm + 22 pF) at the ball to suppress out-of-band noise. For USB DP/DM, keep traces no longer than 25 mm, match lengths to within 150 mil, and place the 15 kohm pull-down resistors close to the MCU. Avoid routing these signals under switching DC-DC nodes or crystals.
Informations de conformité
RoHS compliant and lead-free per Microchip material-composition declarations. Industrial temperature grade; not AEC-Q100 qualified - consult Microchip automotive catalog for vehicle-grade SAM4S variants.
