ATSAM4SD32CA-CU - 120MHz Cortex-M4 MCU 2MB Flash 100-TFBGA | Microchip
MPN: ATSAM4SD32CA-CU ✓ Hoạt độngATSAM4SD32CA-CU Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho ATSAM4SD32CA-CU — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ATSAM4SD32CA-CU (cùng hình factor và footprint) — khác nhau ở ADC, Package, Core Architecture, Mounting Type, USB.
ATSAM4SD32CB-CFN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4SD32BA-UUR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4SD16CA-CUR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S8CA-CU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S4CA-CU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4SD16CB-CFN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S8CB-CFN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4SD32CA-CU Tỷ lệ tối đa & tính chất điện
| Core Architecture | ARM Cortex-M4 with FPU |
| Tần số xung maksimum | 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 |
| Hộp | 100-ball TFBGA (9x9 mm) |
| Khoảng nhiệt độ hoạt động | -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 |
| Kiểu lắp đặt | Surface Mount (TFBGA) |
| Trạng thái RoHS | Compliant |
Cấu hình chân ATSAM4SD32CA-CU
| Chân A1 | VDDIO — IO supply voltage (1.62 V to 3.6 V) |
| Chân A2 | VREF — ADC voltage reference |
| Chân A3 | AVSS — Analog ground |
| Chân A4 | PB0 — GPIO port B bit 0 |
| Chân A5 | PB1 — GPIO port B bit 1 |
| Chân A6 | PB2 — GPIO port B bit 2 |
| Chân A7 | PB3 — GPIO port B bit 3 |
| Chân A8 | PB4 — GPIO port B bit 4 |
| Chân A9 | PB5 — GPIO port B bit 5 |
| Chân B1 | VDDIN — Voltage regulator input (1.62 V to 3.6 V) |
| Chân B2 | VDDOUT — Internal 1.2 V regulator output (decoupling cap) |
| Chân B3 | AVDD — Analog supply (must equal VDDIO) |
| Chân B4 | PB6 — GPIO port B bit 6 |
| Chân B5 | PB7 — GPIO port B bit 7 |
| Chân B6 | PB8 — GPIO port B bit 8 |
| Chân B7 | PB9 — GPIO port B bit 9 |
| Chân B8 | PB10 — GPIO port B bit 10 |
| Chân B9 | PB11 — GPIO port B bit 11 |
| Chân C1 | GND — Ground |
| Chân C2 | TDI — JTAG Test Data In |
| Chân C3 | TCK — JTAG Test Clock |
| Chân C4 | TDO — JTAG Test Data Out |
| Chân C5 | TMS — JTAG Test Mode Select |
| Chân C6 | PB12 — GPIO port B bit 12 |
| Chân C7 | PB13 — GPIO port B bit 13 |
| Chân C8 | PB14 — GPIO port B bit 14 |
| Chân C9 | PB15 — GPIO port B bit 15 |
| Chân D1 | NRST — External reset input (active low) |
| Chân D2 | JTAGSEL — JTAG boundary scan selection strap |
| Chân D3 | PA0 — GPIO port A bit 0 |
| Chân D4 | PA1 — GPIO port A bit 1 |
| Chân D5 | PA2 — GPIO port A bit 2 |
| Chân D6 | PA3 — GPIO port A bit 3 |
| Chân D7 | PA4 — GPIO port A bit 4 |
| Chân D8 | PA5 — GPIO port A bit 5 |
| Chân D9 | PA6 — GPIO port A bit 6 |
| Chân E1 | GND — Ground |
| Chân E2 | PA7 — GPIO port A bit 7 |
| Chân E3 | PA8 — GPIO port A bit 8 |
| Chân E4 | PA9 — GPIO port A bit 9 |
| Chân E5 | PA10 — GPIO port A bit 10 |
| Chân E6 | PA11 — GPIO port A bit 11 |
| Chân E7 | PA12 — GPIO port A bit 12 |
| Chân E8 | PA13 — GPIO port A bit 13 |
| Chân E9 | PA14 — GPIO port A bit 14 |
| Chân F1 | GND — Ground |
| Chân F2 | PA15 — GPIO port A bit 15 |
| Chân F3 | PA16 — GPIO port A bit 16 |
| Chân F4 | PA17 — GPIO port A bit 17 |
| Chân F5 | PA18 — GPIO port A bit 18 |
| Chân F6 | PA19 — GPIO port A bit 19 |
| Chân F7 | PA20 — GPIO port A bit 20 |
| Chân F8 | PA21 — GPIO port A bit 21 |
| Chân F9 | PA22 — GPIO port A bit 22 |
| Chân G1 | GND — Ground |
| Chân G2 | PA23 — GPIO port A bit 23 |
| Chân G3 | PA24 — GPIO port A bit 24 |
| Chân G4 | PA25 — GPIO port A bit 25 |
| Chân G5 | PA26 — GPIO port A bit 26 |
| Chân G6 | PA27 — GPIO port A bit 27 |
| Chân G7 | PA28 — GPIO port A bit 28 |
| Chân G8 | PA29 — GPIO port A bit 29 |
| Chân G9 | PA30 — GPIO port A bit 30 |
| Chân H1 | GND — Ground |
| Chân H2 | PA31 — GPIO port A bit 31 |
| Chân H3 | PB31 — GPIO port B bit 31 |
| Chân H4 | PB30 — GPIO port B bit 30 |
| Chân H5 | PB29 — GPIO port B bit 29 |
| Chân H6 | PB28 — GPIO port B bit 28 |
| Chân H7 | PB27 — GPIO port B bit 27 |
| Chân H8 | PB26 — GPIO port B bit 26 |
| Chân H9 | PB25 — GPIO port B bit 25 |
| Chân J1 | PC0 — GPIO port C bit 0 |
| Chân J2 | PC1 — GPIO port C bit 1 |
| Chân J3 | PC2 — GPIO port C bit 2 |
| Chân J4 | PC3 — GPIO port C bit 3 |
| Chân J5 | PB24 — GPIO port B bit 24 |
| Chân J6 | PB23 — GPIO port B bit 23 |
| Chân J7 | PB22 — GPIO port B bit 22 |
| Chân J8 | PB21 — GPIO port B bit 21 |
| Chân J9 | PB20 — GPIO port B bit 20 |
| Chân K1 | PC4 — GPIO port C bit 4 |
| Chân K2 | PC5 — GPIO port C bit 5 |
| Chân K3 | PC6 — GPIO port C bit 6 |
| Chân K4 | PC7 — GPIO port C bit 7 |
| Chân K5 | PC8 — GPIO port C bit 8 |
| Chân K6 | PB19 — GPIO port B bit 19 |
| Chân K7 | PB18 — GPIO port B bit 18 |
| Chân K8 | PB17 — GPIO port B bit 17 |
| Chân K9 | PB16 — GPIO port B bit 16 |
| Chân L1 | VDDIO — IO supply (1.62 V to 3.6 V) |
| Chân L2 | PC9 — GPIO port C bit 9 |
| Chân L3 | PC10 — GPIO port C bit 10 |
| Chân L4 | PC11 — GPIO port C bit 11 |
| Chân L5 | PC12 — GPIO port C bit 12 |
| Chân L6 | PC13 — GPIO port C bit 13 |
| Chân L7 | PC14 — GPIO port C bit 14 |
| Chân L8 | PC15 — GPIO port C bit 15 |
| Chân L9 | PC16 — GPIO port C bit 16 |
| Chân M1 | GND — Ground |
| Chân M2 | PC17 — GPIO port C bit 17 |
| Chân M3 | PC18 — GPIO port C bit 18 |
| Chân M4 | PC19 — GPIO port C bit 19 |
| Chân M5 | PC20 — GPIO port C bit 20 |
| Chân M6 | PC21 — GPIO port C bit 21 |
| Chân M7 | PC22 — GPIO port C bit 22 |
| Chân M8 | PC23 — GPIO port C bit 23 |
| Chân M9 | NC — Not connected |
Ứng dụng tiêu biểu
ATSAM4SD32CA-CU phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAM4SD32CA-CU — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Largest Flash density in the SAM4S family (vsATSAM4S8CA-CU)
- Revision-B silicon errata coverage (vsATSAM4SD32CB-CFN)
- Drop-in to a 100-TFBGA package across the SAM4S line (vsSTM32F407VG)
- Cortex-M4 with hardware FPU and DSP extensions (vsATSAM3S8CA-AU)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
