ATSAM4SA16CA-AU - 120MHz Cortex-M4 MCU, 1MB Flash, 100-LQFP | Microchip
Référence : ATSAM4SA16CA-AU ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $9.33 | $9,33 |
| 10 | $8.85 | $88,50 |
| 100 | $7.92 | $792,00 |
| 500 | $6.95 | $3 475,00 |
| 1 000 | $6.1 | $6 100,00 |
ATSAM4SA16CA-AU Présentation
A microcontroller (MCU) is a system-on-chip that combines a CPU core, program and data memory, peripherals, and I/O onto a single silicon die. The Cortex-M4 core architecture from ARM is widely adopted for embedded systems because it delivers deterministic interrupt response, Thumb-2 code density, optional DSP extensions, and a mature toolchain (GCC, IAR, Keil, Microchip Studio). Within the broader hierarchy, the ATSAM4SA16CA-AU is a Cortex-M4 MCU, sitting within microcontrollers, integrated circuits, and semiconductors. The SAM4S sub-family targets general-purpose industrial and consumer applications requiring high performance, large on-chip Flash, and rich connectivity.
Key features of the ATSAM4SA16CA-AU include 1 Mbyte of Flash with a Flash read accelerator for zero-wait-state execution from Flash, hardware AES encryption, a 10/100 Ethernet MAC with dedicated DMA, a high-speed USB 2.0 Full-Speed device/host port, a CAN 2.0B controller, multiple USART/UART/SPI/TWI/I2S channels, a 16-bit timer/counter block with PWM, a 12-bit ADC, an analog comparator, and a real-time clock. Static and dynamic memory controllers support SDRAM, NAND Flash, and NOR Flash external memories. The peripheral DMA (PDC) and a multi-layer bus matrix ensure sustained throughput under heavy I/O.
The architecture implements 5 wake-up sources for low-power operation, an integrated power-on reset and brown-out detector, and a watchdog timer. The 100-LQFP package supports up to five communication peripherals running concurrently without bus contention. The part is pin-to-pin compatible with the Atmel SAM3S and SAM3N Cortex-M3 MCUs in the 100-pin LQFP footprint, allowing drop-in migration to higher performance or larger memory.
Typical applications include industrial control and PLCs, factory automation, building access control, smart-grid energy meters, point-of-sale terminals, medical instrumentation, and consumer audio/HMI with touch. The 1 Mbyte Flash makes the device attractive for over-the-air (OTA) upgrade stacks and bootloader-plus-application partitions. The Cortex-M4 DSP extensions accelerate closed-loop motor control and audio decoding.
Design consideration: place four-layer decoupling (one 100 nF X7R per VDD pin and a bulk 4.7 µF) within 3 mm of each supply pad, and route the 32.768 kHz crystal with short traces and a guard ring to minimise jitter. Note that the SAM4S revision-A silicon has an errata affecting the USB interface in host mode; confirm revision-B order codes for new designs.
This page synthesizes distributor pricing, drop-in alternatives, and design considerations compiled from the Microchip datasheet and authorised stockists, going beyond what a single manufacturer page provides.
Alternatives de remplacement direct pour ATSAM4SA16CA-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 ATSAM4SA16CA-AU (même facteur de forme et même empreinte) — différant par Package, Core, RoHS Status, Instruction Set, Flash Memory.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATSAM4SA16CB-AU
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATSAM4S16CA-AU
✅ Remplacement direct✓ En stock
$5.55 / unité
Voir la fiche technique →ATSAM4SA16CA-ANR
✅ Remplacement direct✓ En stock
$5.38 / unité
Voir la fiche technique →ATSAM4SD16CA-AU
✅ Remplacement direct✓ En stock
$5.55 / unité
Voir la fiche technique →ATSAM4SA16BA-AUR
✅ Remplacement direct✓ En stock
$5.45 / unité
Voir la fiche technique →ATSAM4SA16CA-AU Valeurs maximales et caractéristiques électriques
| Core | ARM Cortex-M4 with FPU and 2 Kbyte instruction cache |
| Maximum CPU Clock | 120 MHz |
| Instruction Set | Thumb-2 with DSP extensions |
| Program Memory (Flash) | 1 Mbyte |
| Plage de température de fonctionnement | -40C to +85C (industrial) |
| Boîtier | 100-LQFP (14x14 mm) |
| Type de montage | Surface Mount |
| Pin/Package Count | 100 |
| Memory Protection Unit (MPU) | Yes |
| Ethernet MAC | 10/100 with dedicated DMA |
| USB Controller | USB 2.0 Full-Speed device and host |
| CAN Controller | CAN 2.0B |
| ADC | 12-bit |
| Hardware AES | Yes (128/192/256-bit) |
| Statut RoHS | Compliant |
| Lead-Free / Halogen-Free | Lead-Free (Green); Halogen-Free status unknown in retrieved data |
Guide de configuration des broches du ATSAM4SA16CA-AU 100
Configuration des broches du ATSAM4SA16CA-AU (boîtier 100). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour ATSAM4SA16CA-AU.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
ATSAM4SA16CA-AU convient pour 6 applications: Industrial Control and PLCs, Smart-Grid Energy and Metering, Building Access and HVAC Control, Medical Instrumentation (non-life-support), Point-of-Sale (POS) Terminals, Audio and HMI Touch Applications.
Industrial Control and PLCs
The ATSAM4SA16CA-AU is a strong fit for industrial controllers and PLCs because its 120 MHz Cortex-M4 with DSP extensions runs deterministic PID loops while the 1 Mbyte Flash accommodates full IEC 61131-3 firmware plus a bootloader. Its hardware AES enables secure IP/MAC filtering at the network edge and the SAM4S peripheral DMA offloads USART/SPI traffic from the CPU so critical scan-times stay under 1 ms. The 100-LQFP package and industrial -40 °C to +85 °C range make it suitable for DIN-rail and panel-mount deployment.
Recommandé
Smart-Grid Energy and Metering
In smart-grid and energy-metering terminals the ATSAM4SA16CA-AU handles poly-phase metrology, tamper detection, and DLMS/COSEM communication. The Cortex-M4 DSP instructions implement RMS and harmonic math, the hardware AES secures utility credential exchange, the 10/100 Ethernet MAC streams HAN/BAN telemetry, and the CAN 2.0B port interfaces to the in-grid sensor network. The 1 Mbyte Flash comfortably fits stack, certificate, and application layers with headroom for OTA upgrades.
Recommandé
Building Access and HVAC Control
The ATSAM4SA16CA-AU supports multi-door access controllers and HVAC systems with simultaneous card reader, keypad, and network interfaces. The multi-layer bus matrix ensures that CAN, USART, and SPI peripherals stream events into the SAM4S peripheral DMA without CPU intervention. The hardware AES 128/192/256 cipher secures credential storage and OSDP v2 channel encryption, while the 100-LQFP industrial temperature grade guarantees reliable operation in conditioned and unconditioned control cabinets.
Recommandé
Medical Instrumentation (non-life-support)
The ATSAM4SA16CA-AU suits portable medical devices such as diagnostic carts, point-of-care analysers, and patient monitors requiring a balance of processing throughput and connectivity. The Cortex-M4 with FPU executes real-time sensor fusion at 120 MHz while the 1 Mbyte Flash holds a Linux-class application stack plus IEC 62304 documentation markers. Designers should note that this is a non-life-support part and should validate IEC 60601-1 leakage and EMI requirements before deploying in patient-contact applications.
Recommandé
Point-of-Sale (POS) Terminals
In POS terminals the ATSAM4SA16CA-AU drives the touchscreen, EMV smart card, NFC/RFID and Ethernet/Wi-Fi backhaul. The 1 Mbyte Flash holds the payment application stack and PCI-PTS firmware with secure storage, the hardware AES offloads end-to-end encryption, and the USB 2.0 Full-Speed host port supports printer and external barcode scanner accessories. The 100-LQFP pinout exposes enough GPIO for keypad, magnetic-stripe, and 4G module bring-up while keeping BOM low.
Recommandé
Audio and HMI Touch Applications
The ATSAM4SA16CA-AU integrates an I²S audio port that drives external DACs and codecs for HMI speaker output, while the 12-bit ADC plus DSP extensions decode touch-panel and analogue front-end signals. The SAM4S 1 Mbyte Flash buffers waveform assets and supports local audio mixing at 120 MHz without audible glitching. The peripheral DMA keeps the audio codec fed at the right sample rate independent of the touchscreen loading, and the 100-LQFP industrial temperature range allows deployment in unconditioned wall stations.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATSAM4SA16CA-AU — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATSAM4SA16CB-AU | ATSAM4S16CA-AU | ATSAM4SA16CA-ANR | ATSAM4SD16CA-AU | ATSAM4SA16BA-AUR |
|---|---|---|---|---|---|---|
| Package | 100-LQFP (14x14) | 100-LQFP (14x14) | 100-LQFP (14x14) | 100-LQFP (14x14) | 100-LQFP (14x14) | 100-LQFP (14x14) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| 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 |
| Industrial Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Hardware AES | Yes | Yes | Yes | Yes | Yes | Yes |
| Ethernet MAC | Yes (10/100) | Yes (10/100) | Yes (10/100) | Yes (10/100) | Yes (10/100) | Yes (10/100) |
| USB Controller | USB 2.0 FS | USB 2.0 FS | USB 2.0 FS | USB 2.0 FS | USB 2.0 FS | USB 2.0 FS |
| Packing Media | Tray (90 pcs) | Tray | Tray | Tape and Reel | Tray | Tape and Reel |
Principaux différenciateurs
- Largest on-chip Flash in the SAM4S 100-LQFP family (vs ATSAM4SA16BA-AUR)
- Drop-in replacement for revision-A silicon with same peripheral set (vs ATSAM4SA16CB-AU)
- Industrial temperature grade in 100-LQFP (vs ATSAM4SA16CA-CU)
Notes de conception
Estimated: for a typical SAM4S application drawing 80 mA active at 1.8 V core and 5 mA on VDDIO with all peripherals enabled, total power dissipation at 100-LQFP thermal resistance theta_JA = 40 C/W yields about 85 C junction rise above 25 C ambient. Add a 4.7 µF tantalum plus 100 nF X7R decoupling capacitor within 3 mm of every VDD pin pair, and route a low-inductance copper pour (1 oz minimum) under the exposed pad-style ground rail. For battery-operated applications, leverage the SAM4S five wake-up sources (RTC, USB, CAN, ADC, external IRQ) to drop active current below 1 µA in backup modes.
Route the 32.768 kHz low-frequency crystal traces within 5 mm of the XIN32/XOUT32 pins and surround them with a guard ring tied to GND to suppress noise coupling into the PLL. The 12 MHz main-oscillator traces must be kept short and matched in length, and the analog ground (GNDA) should connect to the digital ground at a single point near the MCU. Keep USB DP/DM traces a matched 90-ohm differential and length-matched within 150 mil to preserve USB 2.0 Full-Speed signal integrity.
Be aware of the SAM4S revision-A errata documented in the silicon errata sheet; the ATSAM4SA16CA-AU is revision-A silicon and has known issues with USB host mode and certain ADC startup conditions. Microchip recommends revision-B silicon (ATSAM4SA16CB-AU) for new designs. Also confirm that the brown-out detector level matches your supply ramp rate to avoid spurious reset events during power-up, and ensure external SDRAM uses 16-bit bus mode supported by the SAM4S external bus interface.
Informations de conformité
Lead-Free/Green flag indicated by the AU suffix in the part number per Microchip part-number convention. REACH and conflict-mineral statuses were not retrieved in the verified web data; refer to the manufacturer compliance statement for confirmation.
