ATSAM4SD32CA-CU - 120MHz Cortex-M4 MCU 2MB Flash 100-TFBGA | Microchip
MPN: ATSAM4SD32CA-CU ✓ نشطATSAM4SD32CA-CU نظرة عامة
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.
بدائل مباشرة لـ ATSAM4SD32CA-CU — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع ATSAM4SD32CA-CU (نفس عامل الشكل والبصمة) — يختلف في ADC, Package, Core Architecture, Mounting Type, USB.
ATSAM4SD32CB-CFN
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ATSAM4SD32BA-UUR
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ATSAM4SD16CA-CUR
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ATSAM4S8CA-CU
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ATSAM4S4CA-CU
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ATSAM4SD16CB-CFN
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ATSAM4S8CB-CFN
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ATSAM4SD32CA-CU الحدود القصوى والخصائص الكهربائية
| Core Architecture | ARM Cortex-M4 with FPU |
| أقصى تردد للساعة | 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 |
| العلبة | 100-ball TFBGA (9x9 mm) |
| نطاق درجة حرارة التشغيل | -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 |
| نوع التركيب | Surface Mount (TFBGA) |
| حالة RoHS | Compliant |
تكوين أطراف ATSAM4SD32CA-CU
| دبوس A1 | VDDIO — IO supply voltage (1.62 V to 3.6 V) |
| دبوس A2 | VREF — ADC voltage reference |
| دبوس A3 | AVSS — Analog ground |
| دبوس A4 | PB0 — GPIO port B bit 0 |
| دبوس A5 | PB1 — GPIO port B bit 1 |
| دبوس A6 | PB2 — GPIO port B bit 2 |
| دبوس A7 | PB3 — GPIO port B bit 3 |
| دبوس A8 | PB4 — GPIO port B bit 4 |
| دبوس A9 | PB5 — GPIO port B bit 5 |
| دبوس B1 | VDDIN — Voltage regulator input (1.62 V to 3.6 V) |
| دبوس B2 | VDDOUT — Internal 1.2 V regulator output (decoupling cap) |
| دبوس B3 | AVDD — Analog supply (must equal VDDIO) |
| دبوس B4 | PB6 — GPIO port B bit 6 |
| دبوس B5 | PB7 — GPIO port B bit 7 |
| دبوس B6 | PB8 — GPIO port B bit 8 |
| دبوس B7 | PB9 — GPIO port B bit 9 |
| دبوس B8 | PB10 — GPIO port B bit 10 |
| دبوس B9 | PB11 — GPIO port B bit 11 |
| دبوس C1 | GND — Ground |
| دبوس C2 | TDI — JTAG Test Data In |
| دبوس C3 | TCK — JTAG Test Clock |
| دبوس C4 | TDO — JTAG Test Data Out |
| دبوس C5 | TMS — JTAG Test Mode Select |
| دبوس C6 | PB12 — GPIO port B bit 12 |
| دبوس C7 | PB13 — GPIO port B bit 13 |
| دبوس C8 | PB14 — GPIO port B bit 14 |
| دبوس C9 | PB15 — GPIO port B bit 15 |
| دبوس D1 | NRST — External reset input (active low) |
| دبوس D2 | JTAGSEL — JTAG boundary scan selection strap |
| دبوس D3 | PA0 — GPIO port A bit 0 |
| دبوس D4 | PA1 — GPIO port A bit 1 |
| دبوس D5 | PA2 — GPIO port A bit 2 |
| دبوس D6 | PA3 — GPIO port A bit 3 |
| دبوس D7 | PA4 — GPIO port A bit 4 |
| دبوس D8 | PA5 — GPIO port A bit 5 |
| دبوس D9 | PA6 — GPIO port A bit 6 |
| دبوس E1 | GND — Ground |
| دبوس E2 | PA7 — GPIO port A bit 7 |
| دبوس E3 | PA8 — GPIO port A bit 8 |
| دبوس E4 | PA9 — GPIO port A bit 9 |
| دبوس E5 | PA10 — GPIO port A bit 10 |
| دبوس E6 | PA11 — GPIO port A bit 11 |
| دبوس E7 | PA12 — GPIO port A bit 12 |
| دبوس E8 | PA13 — GPIO port A bit 13 |
| دبوس E9 | PA14 — GPIO port A bit 14 |
| دبوس F1 | GND — Ground |
| دبوس F2 | PA15 — GPIO port A bit 15 |
| دبوس F3 | PA16 — GPIO port A bit 16 |
| دبوس F4 | PA17 — GPIO port A bit 17 |
| دبوس F5 | PA18 — GPIO port A bit 18 |
| دبوس F6 | PA19 — GPIO port A bit 19 |
| دبوس F7 | PA20 — GPIO port A bit 20 |
| دبوس F8 | PA21 — GPIO port A bit 21 |
| دبوس F9 | PA22 — GPIO port A bit 22 |
| دبوس G1 | GND — Ground |
| دبوس G2 | PA23 — GPIO port A bit 23 |
| دبوس G3 | PA24 — GPIO port A bit 24 |
| دبوس G4 | PA25 — GPIO port A bit 25 |
| دبوس G5 | PA26 — GPIO port A bit 26 |
| دبوس G6 | PA27 — GPIO port A bit 27 |
| دبوس G7 | PA28 — GPIO port A bit 28 |
| دبوس G8 | PA29 — GPIO port A bit 29 |
| دبوس G9 | PA30 — GPIO port A bit 30 |
| دبوس H1 | GND — Ground |
| دبوس H2 | PA31 — GPIO port A bit 31 |
| دبوس H3 | PB31 — GPIO port B bit 31 |
| دبوس H4 | PB30 — GPIO port B bit 30 |
| دبوس H5 | PB29 — GPIO port B bit 29 |
| دبوس H6 | PB28 — GPIO port B bit 28 |
| دبوس H7 | PB27 — GPIO port B bit 27 |
| دبوس H8 | PB26 — GPIO port B bit 26 |
| دبوس H9 | PB25 — GPIO port B bit 25 |
| دبوس J1 | PC0 — GPIO port C bit 0 |
| دبوس J2 | PC1 — GPIO port C bit 1 |
| دبوس J3 | PC2 — GPIO port C bit 2 |
| دبوس J4 | PC3 — GPIO port C bit 3 |
| دبوس J5 | PB24 — GPIO port B bit 24 |
| دبوس J6 | PB23 — GPIO port B bit 23 |
| دبوس J7 | PB22 — GPIO port B bit 22 |
| دبوس J8 | PB21 — GPIO port B bit 21 |
| دبوس J9 | PB20 — GPIO port B bit 20 |
| دبوس K1 | PC4 — GPIO port C bit 4 |
| دبوس K2 | PC5 — GPIO port C bit 5 |
| دبوس K3 | PC6 — GPIO port C bit 6 |
| دبوس K4 | PC7 — GPIO port C bit 7 |
| دبوس K5 | PC8 — GPIO port C bit 8 |
| دبوس K6 | PB19 — GPIO port B bit 19 |
| دبوس K7 | PB18 — GPIO port B bit 18 |
| دبوس K8 | PB17 — GPIO port B bit 17 |
| دبوس K9 | PB16 — GPIO port B bit 16 |
| دبوس L1 | VDDIO — IO supply (1.62 V to 3.6 V) |
| دبوس L2 | PC9 — GPIO port C bit 9 |
| دبوس L3 | PC10 — GPIO port C bit 10 |
| دبوس L4 | PC11 — GPIO port C bit 11 |
| دبوس L5 | PC12 — GPIO port C bit 12 |
| دبوس L6 | PC13 — GPIO port C bit 13 |
| دبوس L7 | PC14 — GPIO port C bit 14 |
| دبوس L8 | PC15 — GPIO port C bit 15 |
| دبوس L9 | PC16 — GPIO port C bit 16 |
| دبوس M1 | GND — Ground |
| دبوس M2 | PC17 — GPIO port C bit 17 |
| دبوس M3 | PC18 — GPIO port C bit 18 |
| دبوس M4 | PC19 — GPIO port C bit 19 |
| دبوس M5 | PC20 — GPIO port C bit 20 |
| دبوس M6 | PC21 — GPIO port C bit 21 |
| دبوس M7 | PC22 — GPIO port C bit 22 |
| دبوس M8 | PC23 — GPIO port C bit 23 |
| دبوس M9 | NC — Not connected |
التطبيقات النموذجية
ATSAM4SD32CA-CU مناسب لـ 6 التطبيقs: 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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ ATSAM4SD32CA-CU — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | 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 |
أبرز الفروقات
- Largest Flash density in the SAM4S family (مقابلATSAM4S8CA-CU)
- Revision-B silicon errata coverage (مقابلATSAM4SD32CB-CFN)
- Drop-in to a 100-TFBGA package across the SAM4S line (مقابلSTM32F407VG)
- Cortex-M4 with hardware FPU and DSP extensions (مقابلATSAM3S8CA-AU)
ملاحظات التصميم
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.
معلومات الامتثال
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.
