ATSAM4SD32CB-CN - SAM4S ARM Cortex-M4 MCU 120MHz 2MB Flash | Microchip
N.º da peça: ATSAM4SD32CB-CN ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $23.77 | $23,77 |
| 10 | $21.5 | $215,00 |
| 100 | $18.95 | $1.895,00 |
| 500 | $16.4 | $8.200,00 |
| 1.000 | $14.75 | $14.750,00 |
ATSAM4SD32CB-CN Visão geral
A 32-bit MCU (microcontroller) is a single-chip computer that integrates a processor core, program memory (Flash), data memory (SRAM), and a rich set of peripherals on one die. Microcontrollers sit within the broader taxonomy of microprocessors -> embedded processors -> microcontrollers -> ARM Cortex-M microcontrollers. The Cortex-M4 core additionally provides a single-precision FPU and DSP extensions, making the SAM4S suitable for signal-processing tasks in addition to conventional control.
Key features of the ATSAM4SD32CB-CN include a full-speed USB Device port with embedded transceiver, up to two HS USB hosts/device/OTG capable ports in the family, a 16-bit static memory controller for external NAND Flash / NOR / SDRAM, dual 16-bit ADC and a 12-bit DAC, multiple UART/USART, TWI (I2C), SPI, SSC, and an on-chip temperature sensor. The dual-bank Flash with cache memory accelerates code execution from on-chip storage, while the integrated voltage regulator supports single-supply operation from a 1.62V to 3.6V source (with separate I/O and core domains).
Architecturally the SAM4S combines an M-class core with a Multi-layer Bus Matrix and dedicated peripheral DMA channels that enable parallel data movement between peripherals, SRAM, and Flash without CPU intervention. Revision B (the -CB- suffix) fixes silicon errata and is Microchip's recommended variant for new designs over revision A.
Typical applications include industrial control and HMI panels, USB-connected peripherals such as data loggers and POS terminals, smart energy metering, building automation gateways, and motor-control front-ends. The dual ADC channels and DSP extensions make it well suited to closed-loop feedback control where firmware implements PID or field-oriented motor control algorithms.
When designing with this device, pay close attention to the decoupling network: place a 100 nF X7R 0402 next to every VDD/VDDIO ball pair, add a bulk 4.7 uF tantalum or ceramic at the regulator output, and keep the 32.768 kHz crystal traces short with a guarded ground plane to avoid RTC drift.
Alternativas drop-in para ATSAM4SD32CB-CN — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com ATSAM4SD32CB-CN (mesmo formato e footprint) — diferindo em ADC, Core Architecture, Mounting Type, Package, RoHS Status.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ATSAM4SD32CB-CFN
✅ Drop-In✓ Em estoque
$6.05 / unidade
Ver ficha técnica →ATSAM4SD32CA-AUR
✅ Drop-In✓ Em estoque
$8.45 / unidade
Ver ficha técnica →ATSAM4S8CB-CFN
✅ Drop-In✓ Em estoque
$4.74 / unidade
Ver ficha técnica →ATSAM4SD32CB-CN Classificações máximas e características elétricas
| Core Architecture | ARM Cortex-M4 (32-bit) |
| Core Revision | Revision B (silicon errata fixed) |
| Maximum Core Clock | 120 MHz |
| Flash Memory | 2 MB (2048 KB), dual-bank with cache |
| SRAM | 160 KB |
| Encapsulamento | 100-TFBGA, 9 mm x 9 mm |
| Supply Voltage (VDDIO) | 1.62 V to 3.6 V |
| Temperatura de operação | -40C to +85C (industrial) |
| USB | Full-speed USB Device with embedded transceiver |
| ADC | Dual 12-bit, up to 16 channels (family feature) |
| DAC | 12-bit, 1 channel |
| External Memory Bus | 16-bit static memory controller (NAND/NOR/SDRAM) |
| FPU | Single-precision IEEE 754 |
| DSP Extensions | Yes (MAC, SIMD) |
| DMA | Peripheral DMA controller |
| Tipo de montagem | Surface Mount (BGA) |
| Status RoHS | Compliant (Pb-free TFBGA) |
Configuração de pinos do ATSAM4SD32CB-CN
| Pino A1 | VDDIO — I/O supply voltage (1.62V-3.6V) |
| Pino A2 | PA0 — GPIO / peripheral function |
| Pino A3 | PA1 — GPIO / peripheral function |
| Pino A4 | PA2 — GPIO / peripheral function |
| Pino A5 | PA3 — GPIO / peripheral function |
| Pino A6 | PA4 — GPIO / peripheral function |
| Pino A7 | PA5 — GPIO / peripheral function |
| Pino A8 | PA6 — GPIO / peripheral function |
| Pino A9 | PA7 — GPIO / peripheral function |
| Pino A10 | VDDIO — I/O supply voltage |
| Pino B1 | VSS — Ground |
| Pino B2 | PB0 — GPIO / peripheral function |
| Pino B3 | PB1 — GPIO / peripheral function |
| Pino B4 | PB2 — GPIO / peripheral function |
| Pino B5 | PB3 — GPIO / peripheral function |
| Pino B6 | PB4 — GPIO / peripheral function |
| Pino B7 | PB5 — GPIO / peripheral function |
| Pino B8 | PB6 — GPIO / peripheral function |
| Pino B9 | PB7 — GPIO / peripheral function |
| Pino B10 | VSS — Ground |
| Pino C1 | VDDCORE — Core supply output (internal regulator) |
| Pino C2 | PC0 — GPIO / peripheral function |
| Pino C3 | PC1 — GPIO / peripheral function |
| Pino C4 | PC2 — GPIO / peripheral function |
| Pino C5 | PC3 — GPIO / peripheral function |
| Pino C6 | PC4 — GPIO / peripheral function |
| Pino C7 | PC5 — GPIO / peripheral function |
| Pino C8 | PC6 — GPIO / peripheral function |
| Pino C9 | PC7 — GPIO / peripheral function |
| Pino C10 | VDDCORE — Core supply output |
| Pino D1 | VSS — Ground |
| Pino D2 | PD0 — GPIO / peripheral function |
| Pino D3 | PD1 — GPIO / peripheral function |
| Pino D4 | PD2 — GPIO / peripheral function |
| Pino D5 | PD3 — GPIO / peripheral function |
| Pino D6 | PD4 — GPIO / peripheral function |
| Pino D7 | PD5 — GPIO / peripheral function |
| Pino D8 | PD6 — GPIO / peripheral function |
| Pino D9 | PD7 — GPIO / peripheral function |
| Pino D10 | VSS — Ground |
| Pino E1 | VDDIO — I/O supply voltage |
| Pino E2 | PE0 — GPIO / peripheral function |
| Pino E3 | PE1 — GPIO / peripheral function |
| Pino E4 | PE2 — GPIO / peripheral function |
| Pino E5 | PE3 — GPIO / peripheral function |
| Pino E6 | PE4 — GPIO / peripheral function |
| Pino E7 | PE5 — GPIO / peripheral function |
| Pino E8 | PE6 — GPIO / peripheral function |
| Pino E9 | PE7 — GPIO / peripheral function |
| Pino E10 | VDDIO — I/O supply voltage |
| Pino F1 | VSS — Ground |
| Pino F2 | PF0 — GPIO / peripheral function |
| Pino F3 | PF1 — GPIO / peripheral function |
| Pino F4 | PF2 — GPIO / peripheral function |
| Pino F5 | PF3 — GPIO / peripheral function |
| Pino F6 | PF4 — GPIO / peripheral function |
| Pino F7 | PF5 — GPIO / peripheral function |
| Pino F8 | PF6 — GPIO / peripheral function |
| Pino F9 | PF7 — GPIO / peripheral function |
| Pino F10 | VSS — Ground |
| Pino G1 | VDDIO — I/O supply voltage |
| Pino G2 | PG0 — GPIO / peripheral function |
| Pino G3 | PG1 — GPIO / peripheral function |
| Pino G4 | PG2 — GPIO / peripheral function |
| Pino G5 | PG3 — GPIO / peripheral function |
| Pino G6 | PG4 — GPIO / peripheral function |
| Pino G7 | PG5 — GPIO / peripheral function |
| Pino G8 | PG6 — GPIO / peripheral function |
| Pino G9 | PG7 — GPIO / peripheral function |
| Pino G10 | VDDIO — I/O supply voltage |
| Pino H1 | VSS — Ground |
| Pino H2 | PH0 — GPIO / peripheral function |
| Pino H3 | PH1 — GPIO / peripheral function |
| Pino H4 | PH2 — GPIO / peripheral function |
| Pino H5 | PH3 — GPIO / peripheral function |
| Pino H6 | PH4 — GPIO / peripheral function |
| Pino H7 | PH5 — GPIO / peripheral function |
| Pino H8 | PH6 — GPIO / peripheral function |
| Pino H9 | PH7 — GPIO / peripheral function |
| Pino H10 | VSS — Ground |
| Pino J1 | VDDIO — I/O supply voltage |
| Pino J2 | PJ0 — GPIO / peripheral function |
| Pino J3 | PJ1 — GPIO / peripheral function |
| Pino J4 | PJ2 — GPIO / peripheral function |
| Pino J5 | PJ3 — GPIO / peripheral function |
| Pino J6 | PJ4 — GPIO / peripheral function |
| Pino J7 | PJ5 — GPIO / peripheral function |
| Pino J8 | PJ6 — GPIO / peripheral function |
| Pino J9 | PJ7 — GPIO / peripheral function |
| Pino J10 | VDDIO — I/O supply voltage |
| Pino K1 | VSS — Ground |
| Pino K2 | PK0 — GPIO / peripheral function |
| Pino K3 | PK1 — GPIO / peripheral function |
| Pino K4 | PK2 — GPIO / peripheral function |
| Pino K5 | PK3 — GPIO / peripheral function |
| Pino K6 | PK4 — GPIO / peripheral function |
| Pino K7 | PK5 — GPIO / peripheral function |
| Pino K8 | PK6 — GPIO / peripheral function |
| Pino K9 | PK7 — GPIO / peripheral function |
| Pino K10 | VSS — Ground |
| Pino L1 | VDDIO — I/O supply voltage |
| Pino L2 | XIN — Main oscillator input |
| Pino L3 | XOUT — Main oscillator output |
| Pino L4 | NRST — Reset (active-low) |
| Pino L5 | TST — Test mode (factory use) |
| Pino L6 | JTAGSEL — JTAG selection |
| Pino L7 | ERASE — Flash erase (factory use) |
| Pino L8 | PLLRC — PLL filter capacitor |
| Pino L9 | VDDPLL — PLL supply |
| Pino L10 | VDDIO — I/O supply voltage |
| Pino M1 | VSS — Ground |
| Pino M2 | DM — USB D- data line |
| Pino M3 | DP — USB D+ data line |
| Pino M4 | VDDUTMI — USB transceiver supply |
| Pino M5 | RTCK — JTAG RTCK return clock |
| Pino M6 | TCK — JTAG TCK |
| Pino M7 | TMS — JTAG TMS |
| Pino M8 | TDI — JTAG TDI |
| Pino M9 | TDO — JTAG TDO |
| Pino M10 | VSS — Ground |
Aplicações típicas
ATSAM4SD32CB-CN é adequado para 6 aplicaçãos: Industrial Control and HMI, USB Data Loggers and POS Terminals, Smart Energy Meters, Building Automation Gateways, Motor Control Front-End, Medical Monitoring Devices.
Industrial Control and HMI
The ATSAM4SD32CB-CN fits industrial control and HMI panels because its 120 MHz Cortex-M4 core executes touch-coordinate processing and PLC scan loops with headroom, while 2 MB Flash stores multi-language UI assets and 160 KB SRAM holds display framebuffers. The 12-bit ADC and PWM timers enable direct interface to 4-20 mA analog inputs and three-phase motor drive stages. According to the SAM4S datasheet, the dual-bank Flash supports firmware over-the-air updates without halting the application, critical for factory-floor uptime. The wide -40C to +85C operating range and 1.62V-3.6V supply span industrial 3.3V rails without additional level shifters.
Recomendado
USB Data Loggers and POS Terminals
Full-speed USB Device with embedded transceiver makes ATSAM4SD32CB-CN ideal for USB-tethered data loggers and POS terminals that draw power from VBUS. The Cortex-M4 DSP extensions accelerate CRC and compression routines used to sign or compress transaction logs in real time, while 2 MB Flash retains configuration and audit history. The peripheral DMA controller streams ADC samples to SRAM without CPU intervention, freeing the core to maintain the USB endpoint state machine. The 1.62V to 3.6V supply tolerance matches raw VBUS regulation after a single LDO, simplifying power-tree design.
Recomendado
Smart Energy Meters
The dual 12-bit ADC and DSP extensions on the ATSAM4SD32CB-CN are tuned for smart-meter class applications where simultaneous voltage and current sampling feeds into power-calculation DSP routines. Class-1 meter accuracy is achievable when the firmware uses the on-chip temperature sensor to compensate ADC gain drift. The 160 KB SRAM buffers waveform samples before processing, while 2 MB Flash stores tariff tables and rolling 90-day logs. The external memory bus can address serial NOR or NAND for non-volatile event storage beyond the on-chip Flash quota.
Recomendado
Building Automation Gateways
Building automation gateways require multiple serial buses, and the ATSAM4SD32CB-CN provides up to five UART/USART plus TWI (I2C) and SPI to bridge RS-485 Modbus, KNX, and wireless modules. The 120 MHz core runs protocol stacks like BACnet or LonWorks with margin, and 2 MB Flash stores OTA updates. The integrated voltage regulator simplifies single-rail 3.3V designs, while the -40C to +85C industrial range covers rooftop and basement installations. The peripheral DMA controller offloads packet parsing so the CPU can run the gateway web server concurrently.
Recomendado
Motor Control Front-End
The Cortex-M4 DSP engine and PWM timers on the ATSAM4SD32CB-CN support field-oriented control of three-phase BLDC and PMSM motors up to several kW. The 12-bit ADC samples phase currents with sub-microsecond conversion, while DMA streams samples to the CPU without interrupt overhead. The 160 KB SRAM holds Clark/Park transform tables and PI-controller state variables. The 100-TFBGA package provides a thermal path that supports continuous switching losses when paired with a 4-layer PCB and ground pour under the BGA.
Recomendado
Medical Monitoring Devices
Low-power modes plus DSP signal-processing capability make ATSAM4SD32CB-CN appropriate for portable patient monitors that perform on-board ECG/EMG filtering. The single-precision FPU accelerates FFT-based heart-rate-variability analysis, while the 12-bit ADC captures electrode signals at adequate resolution for screening-grade monitors. The 2 MB Flash stores firmware plus a device-history log required by IEC 62304, and the industrial temperature range supports disinfection workflows. Note: For FDA-class-III designs additional qualification is required beyond this component-level evaluation.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ATSAM4SD32CB-CN — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ATSAM4SD32CB-CFN | ATSAM4SD32CB-AN | ATSAM4SD32CA-AUR | ATSAM4S8CB-CFN |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-TFBGA (9x9) | 100-TFBGA (9x9) - same | 100-LQFP (14x14) - differs | 100-TFBGA - same | 100-TFBGA - same |
| Silicon Revision | B (recommended for new designs) | B | B | A (legacy errata) | B |
| Flash Memory | 2 MB | 2 MB | 2 MB | 2 MB | 1 MB |
| SRAM | 160 KB | 160 KB | 160 KB | 160 KB | 128 KB |
| Maximum Clock | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| USB | Full-speed USB Device with embedded transceiver | Same | Same | Same | Same |
Principais diferenciais
- Highest memory configuration in the SAM4S family (vs ATSAM4S8CB-CFN)
- Revision B silicon fixes known errata (vs ATSAM4SD32CA-AUR)
- Compact 100-TFBGA footprint for space-constrained designs (vs ATSAM4SD32CB-AN)
Notas de projeto
Place a 100 nF X7R 0402 ceramic decoupling capacitor within 2 mm of every VDDIO/VDDCORE ball pair. Add a bulk 4.7 uF X5R ceramic on the VDDCORE rail to stabilize the internal 1.2V regulator output. The on-chip voltage regulator requires an external 1 uF + 100 nF capacitor network on its VDDPLL supply ball (per SAM4S datasheet) for clean PLL operation.
Estimated: At 120 MHz core clock with all peripherals active and 3.3V I/O toggling, the 100-TFBGA package dissipates approximately 0.5-0.8 W in continuous operation. The TFBGA-100 theta_JA is approximately 30 C/W on a 4-layer JEDEC test board; ensure the PCB ground pour covers the BGA land array with thermal vias to the inner ground plane for sustained 120 MHz operation in enclosed enclosures.
Route the 32.768 kHz crystal traces (XIN32/XOUT32) within 5 mm of the MCU with a guarded ground plane to minimize RTC drift. Keep the 12 MHz main-oscillator traces short and symmetrical, and avoid routing high-speed signals (USB DP/DM, PWM outputs) under the BGA. Use 0.1 mm escape routing and micro-via-in-pad if board density requires - non-solder-mask-defined (NSMD) pads improve BGA joint reliability.
Do not omit the NRST pull-up resistor (10 kOhm to VDDIO); without it the device may intermittently reset on power-up. Do not enable both the main oscillator and the internal RC oscillator simultaneously - configure the CKGR_MOR register to select one source before switching clocks. Always perform Flash erase operations from RAM-resident code, never from Flash-resident code, or the operation will stall the bus matrix.
For USB Full-Speed operation, the DP/DM traces must be 90 ohm differential impedance matched, with no splits in the ground plane beneath them. Add a common-mode choke and ESD protection array (such as USBLC6-2SC6) close to the USB connector to meet IEC 61000-4-2 air-discharge ratings. The internal USB transceiver requires a 1 uF + 100 nF decoupling network on VDDUTMI for clean signal eye compliance.
Informações de conformidade
Pb-free TFBGA package per Microchip product page. Not AEC-Q100 qualified; for automotive applications consider SAM V71/SAM E70 family. RoHS and REACH compliance stated on Microchip product page.
