ATSAM4SD16CA-AU - SAM4S Cortex-M4 MCU 120MHz 1MB | Microchip
Référence : ATSAM4SD16CA-AU ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $9.2 | $9,20 |
| 10 | $8.1 | $81,00 |
| 100 | $6.95 | $695,00 |
| 500 | $6.2 | $3 100,00 |
| 1 000 | $5.55 | $5 550,00 |
ATSAM4SD16CA-AU Présentation
An ARM Cortex-M4 microcontroller is a 32-bit processor core designed for embedded systems, combining high computational throughput with low power consumption and a rich interrupt model. Within the broader taxonomy, it sits in the hierarchy: ARM Cortex-M4 -> Cortex-M family -> ARM 32-bit MCU -> microcontroller -> embedded processor -> semiconductor. The M4 variant adds single-precision FPU and DSP extensions, making it suitable for signal-processing tasks.
Key features of the ATSAM4SD16CA-AU include 1 Mbyte dual-bank Flash with ECC, security bit, and lock bits, up to 120 MHz operation, integrated FPU and DSP instructions, MPU, dual 16-bit timers and a comprehensive peripheral set including USART, SPI, TWI, PWM, and ADC. The device operates from 1.62V to 3.6V and includes a Brown-Out Detector (BOD) and Watchdog.
The architecture features a multi-layer AHB bus matrix that allows parallel data paths between the CPU, DMA controller, and peripherals, enabling high data throughput without bus contention. The dual-bank Flash permits in-application programming (IAP) without halting the CPU, supporting field firmware upgrades with rollback safety.
Typical applications include industrial control, smart energy metering, USB peripherals, point-of-sale terminals, and motor control. Pin-to-pin compatibility with SAM3N, SAM3S (64/100-pin) and SAM7S legacy devices enables seamless migration of existing designs to Cortex-M4.
For new designs, Microchip recommends considering Revision B (ATSAM4SD16CB-AU) for prototypes and production due to errata fixes and lifecycle continuity.
This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Alternatives de remplacement direct pour ATSAM4SD16CA-AU — 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 ATSAM4SD16CA-AU (même facteur de forme et même empreinte) — différant par ADC, Package, Operating Temperature, Core Architecture, RoHS Status.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATSAM4SD16CB-AU
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATSAM4S16CA-AU
✅ Remplacement direct✓ En stock
$5.55 / unité
Voir la fiche technique →ATSAM4SD32CA-AU
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATSAM4SD16CA-CU
✅ Remplacement direct✓ En stock
$5.2 / unité
Voir la fiche technique →ATSAM4SD16BA-AU
✅ Remplacement direct✓ En stock
$8.62 / unité
Voir la fiche technique →ATSAM4SA16CA-AUR
✅ Remplacement direct✓ En stock
$6.23 / unité
Voir la fiche technique →ATSAM4SD16CA-AU Valeurs maximales et caractéristiques électriques
| Core | ARM Cortex-M4 |
| Core Count | Single-core |
| Fréquence d'horloge maximale | 120 MHz |
| Cache | 2 Kbytes |
| Instruction Set | Thumb-2, DSP |
| FPU | Single-precision |
| Program Flash | 1 MB (2 x 512 KB dual-bank) |
| SRAM | 160 KB |
| Memory Protection Unit (MPU) | Yes |
| DMA | Multi-channel |
| Operating Voltage | 1.62 V to 3.6 V |
| Boîtier | 100-pin LQFP (14x14 mm) |
| Type de montage | Surface Mount |
| Température de fonctionnement | -40 C to +85 C (industrial) |
| Statut RoHS | Compliant |
| Lead-Free | Yes |
| Pin-to-Pin Compatible | SAM3N, SAM3S (64/100-pin), SAM7S legacy |
Configuration des broches de ATSAM4SD16CA-AU
| Broche 1 | PB0 — General-purpose I/O / peripheral function |
| Broche 2 | PB1 — General-purpose I/O / peripheral function |
| Broche 3 | PB2 — General-purpose I/O / peripheral function |
| Broche 4 | PB3 — General-purpose I/O / peripheral function |
| Broche 5 | VDDOUT — Voltage regulator output (1.8V core supply) |
| Broche 6 | VDDIN — Voltage regulator input |
| Broche 7 | VDDIO — I/O supply voltage |
| Broche 8 | GND — Ground |
| Broche 9 | XIN — Crystal oscillator input |
| Broche 10 | XOUT — Crystal oscillator output |
| Broche 11 | NRST — Reset input (active low) |
| Broche 12 | TST — Test mode (tie to GND) |
| Broche 13 | JTAGSEL — JTAG selection (tie to VDDIO for JTAG) |
| Broche 14 | PA0 — General-purpose I/O / peripheral function |
| Broche 15 | PA1 — General-purpose I/O / peripheral function |
| Broche 16 | PA2 — General-purpose I/O / peripheral function |
| Broche 17 | PA3 — General-purpose I/O / peripheral function |
| Broche 18 | PA4 — General-purpose I/O / peripheral function |
| Broche 19 | PA5 — General-purpose I/O / peripheral function |
| Broche 20 | PA6 — General-purpose I/O / peripheral function |
| Broche 21 | PA7 — General-purpose I/O / peripheral function |
| Broche 22 | PA8 — General-purpose I/O / peripheral function |
| Broche 23 | PA9 — General-purpose I/O / peripheral function |
| Broche 24 | PA10 — General-purpose I/O / peripheral function |
| Broche 25 | PA11 — General-purpose I/O / peripheral function |
| Broche 26 | PA12 — General-purpose I/O / peripheral function |
| Broche 27 | PA13 — General-purpose I/O / peripheral function |
| Broche 28 | PA14 — General-purpose I/O / peripheral function |
| Broche 29 | VDDCORE — Core supply voltage (1.2V) |
| Broche 30 | GND — Ground |
| Broche 31 | VDDIO — I/O supply voltage |
| Broche 32 | PA15 — General-purpose I/O / peripheral function |
| Broche 33 | PA16 — General-purpose I/O / peripheral function |
| Broche 34 | PA17 — General-purpose I/O / peripheral function |
| Broche 35 | PA18 — General-purpose I/O / peripheral function |
| Broche 36 | PA19 — General-purpose I/O / peripheral function |
| Broche 37 | PA20 — General-purpose I/O / peripheral function |
| Broche 38 | PA21 — General-purpose I/O / peripheral function |
| Broche 39 | PA22 — General-purpose I/O / peripheral function |
| Broche 40 | PA23 — General-purpose I/O / peripheral function |
| Broche 41 | PA24 — General-purpose I/O / peripheral function |
| Broche 42 | PA25 — General-purpose I/O / peripheral function |
| Broche 43 | PA26 — General-purpose I/O / peripheral function |
| Broche 44 | PA27 — General-purpose I/O / peripheral function |
| Broche 45 | PA28 — General-purpose I/O / peripheral function |
| Broche 46 | PA29 — General-purpose I/O / peripheral function |
| Broche 47 | PA30 — General-purpose I/O / peripheral function |
| Broche 48 | PA31 — General-purpose I/O / peripheral function |
| Broche 49 | PB4 — General-purpose I/O / peripheral function |
| Broche 50 | PB5 — General-purpose I/O / peripheral function |
| Broche 51 | PB6 — General-purpose I/O / peripheral function |
| Broche 52 | PB7 — General-purpose I/O / peripheral function |
| Broche 53 | PB8 — General-purpose I/O / peripheral function |
| Broche 54 | PB9 — General-purpose I/O / peripheral function |
| Broche 55 | PB10 — General-purpose I/O / peripheral function |
| Broche 56 | PB11 — General-purpose I/O / peripheral function |
| Broche 57 | PB12 — General-purpose I/O / peripheral function |
| Broche 58 | PB13 — General-purpose I/O / peripheral function |
| Broche 59 | PB14 — General-purpose I/O / peripheral function |
| Broche 60 | PB15 — General-purpose I/O / peripheral function |
| Broche 61 | PC0 — General-purpose I/O / peripheral function |
| Broche 62 | PC1 — General-purpose I/O / peripheral function |
| Broche 63 | PC2 — General-purpose I/O / peripheral function |
| Broche 64 | PC3 — General-purpose I/O / peripheral function |
| Broche 65 | PC4 — General-purpose I/O / peripheral function |
| Broche 66 | PC5 — General-purpose I/O / peripheral function |
| Broche 67 | PC6 — General-purpose I/O / peripheral function |
| Broche 68 | PC7 — General-purpose I/O / peripheral function |
| Broche 69 | PC8 — General-purpose I/O / peripheral function |
| Broche 70 | PC9 — General-purpose I/O / peripheral function |
| Broche 71 | PC10 — General-purpose I/O / peripheral function |
| Broche 72 | PC11 — General-purpose I/O / peripheral function |
| Broche 73 | PC12 — General-purpose I/O / peripheral function |
| Broche 74 | PC13 — General-purpose I/O / peripheral function |
| Broche 75 | PC14 — General-purpose I/O / peripheral function |
| Broche 76 | PC15 — General-purpose I/O / peripheral function |
| Broche 77 | PC16 — General-purpose I/O / peripheral function |
| Broche 78 | PC17 — General-purpose I/O / peripheral function |
| Broche 79 | PC18 — General-purpose I/O / peripheral function |
| Broche 80 | PC19 — General-purpose I/O / peripheral function |
| Broche 81 | PC20 — General-purpose I/O / peripheral function |
| Broche 82 | PC21 — General-purpose I/O / peripheral function |
| Broche 83 | PC22 — General-purpose I/O / peripheral function |
| Broche 84 | PC23 — General-purpose I/O / peripheral function |
| Broche 85 | PC24 — General-purpose I/O / peripheral function |
| Broche 86 | PC25 — General-purpose I/O / peripheral function |
| Broche 87 | PC26 — General-purpose I/O / peripheral function |
| Broche 88 | PC27 — General-purpose I/O / peripheral function |
| Broche 89 | PC28 — General-purpose I/O / peripheral function |
| Broche 90 | PC29 — General-purpose I/O / peripheral function |
| Broche 91 | PC30 — General-purpose I/O / peripheral function |
| Broche 92 | PC31 — General-purpose I/O / peripheral function |
| Broche 93 | PD0 — General-purpose I/O / peripheral function |
| Broche 94 | PD1 — General-purpose I/O / peripheral function |
| Broche 95 | PD2 — General-purpose I/O / peripheral function |
| Broche 96 | PD3 — General-purpose I/O / peripheral function |
| Broche 97 | PD4 — General-purpose I/O / peripheral function |
| Broche 98 | PD5 — General-purpose I/O / peripheral function |
| Broche 99 | PD6 — General-purpose I/O / peripheral function |
| Broche 100 | PD7 — General-purpose I/O / peripheral function |
Applications typiques
ATSAM4SD16CA-AU convient pour 6 applications: Industrial Control Systems, USB Device Peripherals, Smart Energy Metering, Motor Control and Inverters, Point-of-Sale Terminals, Data Logging and Sensor Hubs.
Industrial Control Systems
The ATSAM4SD16CA-AU suits industrial control with 120 MHz Cortex-M4 core handling PID loops at sub-millisecond rates, 160 KB SRAM accommodating protocol stacks (Modbus, EtherCAT slave) plus application buffers, and 100-LQFP package providing generous GPIO for sensor aggregation. Its industrial -40C to +85C operating range supports factory floor deployment. The DSP extensions and FPU enable floating-point motor control math without burdening the CPU, and the dual-bank Flash allows safe remote firmware updates in unattended equipment. Place a 100 nF + 10 uF decoupling pair near each VDD pin and route the analog AGND separately from digital GND to preserve ADC accuracy on the integrated 12-bit ADC channels used for current/voltage sensing.
Recommandé
USB Device Peripherals
The ATSAM4SD16CA-AU integrates a USB 2.0 Full-Speed device controller with on-chip transceiver and programmable pull-up, eliminating the need for an external PHY. With 120 MHz Cortex-M4 and DMA, USB HID, CDC, MSD, or vendor class implementations run with minimal CPU loading, while 160 KB SRAM comfortably holds USB descriptors and protocol state. The 1 MB dual-bank Flash supports multi-language USB HID descriptors or composite device firmware. Use a 12 MHz external crystal with proper PCB layout to meet USB jitter requirements; route D+/D- as a 90-ohm differential pair with matched trace lengths.
Recommandé
Smart Energy Metering
The ATSAM4SD16CA-AU fits smart energy metering where the Cortex-M4 with FPU accelerates RMS and FFT calculations on AC line waveforms sampled by the integrated 12-bit ADC. Its 160 KB SRAM provides headroom for metrology buffers, and 1 MB dual-bank Flash enables secure firmware with rollback for utility deployments. The MPU enables privilege separation between metering code and communication stacks, and the ECC Flash integrity check helps meet metering accuracy regulations. Operate from a 3.3 V linear regulator fed by the AC-line-derived DC bus; isolate the metrology GND from the communication GND to reduce noise coupling.
Recommandé
Motor Control and Inverters
The ATSAM4SD16CA-AU drives BLDC, PMSM, or stepper motors using its PWM timer/counter outputs with complementary channels and dead-time insertion. The Cortex-M4 single-precision FPU runs field-oriented control (FOC) math with sub-microsecond loop times at 120 MHz, while DSP instructions accelerate Park/Clarke transforms. The 100-LQFP exposes 3 PWM timer blocks sufficient for 3-phase bridges, and the A/D synchronization to PWM enables precise current sampling. Keep PWM traces short and isolated from analog signals; add a Schottky flyback clamp on each motor phase output to protect the MCU during commutation events.
Recommandé
Point-of-Sale Terminals
The ATSAM4SD16CA-AU serves as the main controller in POS terminals where 1 MB Flash holds payment application firmware, and 160 KB SRAM buffers transaction packets and printer queues. The USB Full-Speed port connects to peripherals (barcode scanner, PIN pad), while multiple USARTs drive the receipt printer and customer display. The Cortex-M4 DSP extensions enable on-device encryption acceleration (AES via software libraries) for transaction security. The industrial temperature range supports outdoor deployment in kiosk-style terminals. Add ESD protection diodes on all external I/O lines to survive handling and field abuse.
Recommandé
Data Logging and Sensor Hubs
The ATSAM4SD16CA-AU functions as a sensor hub with its 12-bit ADC, multiple SPI/TWI interfaces, and DMA controller offloading sensor sampling. The 160 KB SRAM buffers large data bursts from accelerometers, gyroscopes, or environmental sensors before compression/streaming over USB or UART. Industrial -40C to +85C temperature range enables outdoor and automotive sensor hub deployment. The MPU isolates sensor-firmware updates from base firmware for security. Use an external 32.768 kHz crystal for RTC accuracy in time-stamped logging, and add a coin-cell backup for the RTC domain to preserve timestamps across power cycles.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATSAM4SD16CA-AU — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATSAM4SD16CB-AU | ATSAM4S16CA-AU | ATSAM4SD32CA-AU | ATSAM4SD16CA-CU | ATSAM4SD16BA-AU |
|---|---|---|---|---|---|---|
| Package | 100-LQFP (14x14) | 100-LQFP (14x14) - same | 100-LQFP - same | 100-LQFP (14x14) - same | 100-LQFP - same | 100-LQFP - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Core | ARM Cortex-M4 120 MHz | ARM Cortex-M4 120 MHz | ARM Cortex-M4 120 MHz | ARM Cortex-M4 120 MHz | ARM Cortex-M4 120 MHz | ARM Cortex-M4 120 MHz |
| Flash Memory | 1 MB (dual-bank) | 1 MB (dual-bank) | 1 MB (single-bank) | 2 MB (dual-bank) | 1 MB (dual-bank) | 1 MB |
| SRAM | 160 KB | 160 KB | 160 KB | 160 KB | 160 KB | 160 KB |
| Operating Voltage | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.8/2.5/3.3 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 -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C | Commercial 0C to +70C | Industrial -40C to +85C |
| Flash ECC / Lock Bits | Yes (dual-bank) | Yes (dual-bank) | No (single-bank) | Yes (dual-bank) | Yes (dual-bank) | Yes |
| Manufacturer Recommendation | Use Revision B for new designs | Recommended for new designs | Cost-reduced alternate | Higher-memory upgrade | Commercial-temp alternate | Earlier silicon revision |
Principaux différenciateurs
- Dual-bank Flash with ECC and lock bits (vs ATSAM4S16CA-AU)
- Manufacturer-recommended Revision B for new designs (vs ATSAM4SD16CA-AU (this part))
- Double Flash memory in same package (vs ATSAM4SD16CA-AU vs ATSAM4SD32CA-AU)
Notes de conception
The ATSAM4SD16CA-AU integrates a 1.2V core LDO regulator fed from VDDIN; place a 1 uF + 100 nF decoupling pair within 5 mm of VDDIN/VDDOUT pins per the manufacturer reference design. Add a 4.7 uF bulk capacitor on VDDIO and route VDDCORE pins directly to the internal LDO output with a star-ground topology. The internal regulator can source up to 100 mA, so avoid heavy GPIO switching loads on the same plane to prevent core-voltage ripple.
For USB applications, route the D+ and D- traces as a 90-ohm differential pair with matched lengths within 150 mil tolerance, and place the 12 MHz crystal within 5 mm of XIN/XOUT with a grounded guard ring. Keep PWM outputs isolated from analog ADC inputs by at least 3 trace widths to avoid switching noise coupling into ADC measurements. Use a 4-layer PCB with dedicated GND and power planes for the 100-LQFP, since the package has no exposed thermal pad.
Do not exceed 3.6V on VDDIO - the ATSAM4SD16CA-AU is NOT 5V tolerant. Always assert NRST after VDDIO reaches 1.62V minimum, or use the internal Brown-Out Detector (BOD) with the BOD33 threshold enabled in the fuses. For dual-bank Flash IAP, ensure the application linker script places new firmware in bank 1 and uses the EEFC FCR register sequence documented in the SAM4S datasheet; failing to disable interrupts during bank swap can corrupt the running image.
The 100-LQFP (14x14 mm) has a theta_JA of approximately 40 C/W on a 4-layer JEDEC test board, so the MCU dissipates safely up to ~1.5W at 85C ambient. For applications driving many GPIO at high switching rates, add copper pours under the package and vias to the GND plane to reduce thermal resistance. Avoid placing the MCU directly above a power dissipator without thermal isolation.
Informations de conformité
RoHS and lead-free confirmed per Microchip product page. AEC-Q100 not applicable - part is not automotive qualified; for automotive applications use SAMx7 automotive-grade variants.
