ATSAM4S8CA-AUR - 120MHz Cortex-M4 MCU 512KB Flash LQFP-100 | Microchip
Référence : ATSAM4S8CA-AUR ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $7.46 | $7,46 |
| 10 | $6.71 | $67,10 |
| 100 | $5.97 | $597,00 |
| 500 | $5.45 | $2 725,00 |
| 1 000 | $5.1 | $5 100,00 |
ATSAM4S8CA-AUR Présentation
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O onto one die, enabling compact embedded designs. The Cortex-M4 is an ARMv7-M core family widely used in mixed-signal industrial and IoT systems; LDOs, switching regulators, and power management ICs sit alongside MCUs in the broader semiconductor ecosystem, with the MCU itself classified as a digital integrated circuit. Within Microchip's SAM family, Cortex-M4 variants such as SAM4S, SAM4N, and SAM3S share a pin-to-pin compatible footprint, easing migration.
Key features of the ATSAM4S8CA-AUR include a single-core Cortex-M4 with FPU and DSP extensions, 512 KB Flash (single-bank option) plus 128 KB SRAM, a Multi-bit ECC Flash controller, and a peripheral set that typically spans USART/UART, TWI (I2C), SPI, SSC, USB 2.0 Full-Speed device/host, CAN, a 12-bit ADC, PWM timers, and an External Bus Interface. The device operates from 1.62 V to 3.6 V and integrates an on-chip voltage regulator that simplifies single-rail designs.
Architecturally the part uses an 8-layer AHB/APB matrix, a tightly-coupled SRAM block for deterministic code execution, and an enhanced Flash controller supporting read-while-write for live firmware updates. Power modes draw as little as a few microamps in back-up with RTC running, suitable for battery-aware industrial nodes.
Typical applications include industrial control PLCs, building automation gateways, smart-metering, point-of-sale terminals, low-cost HMI panels, USB peripherals (HID, CDC), and CAN-connected automotive aftermarket modules. For high-end audio DSP or graphics-heavy HMI, designers usually step up to SAM4E/SAM7S with larger memory and dedicated peripherals.
When designing with the ATSAM4S8CA-AUR, route the 32 kHz crystal traces symmetrically and place the four decoupling capacitors as close as possible to each supply pin pair. Use the Atmel/Microchip SAM-BA boot assistant or SWD/JTAG for programming, and always specify the boot mode strap correctly on reset to avoid lockouts.
This page consolidates distributor pricing, drop-in pin-compatible alternatives, and design considerations not found in the manufacturer datasheet, helping engineers evaluate and second-source the part quickly.
Alternatives de remplacement direct pour ATSAM4S8CA-AUR — 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 ATSAM4S8CA-AUR (même facteur de forme et même empreinte) — différant par Package, ADC, Operating Temperature, Supply Voltage, RoHS Status.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATSAM4S8CA-AU
✅ Remplacement direct✓ En stock
$5.74 / unité
Voir la fiche technique →ATSAM4S16CA-AU
✅ Remplacement direct✓ En stock
$5.55 / unité
Voir la fiche technique →ATSAM4S16CA-AUR
✅ Remplacement direct✓ En stock
Contactez-nous pour le prix
Voir la fiche technique →ATSAM4S8BA-MU
✅ Remplacement direct✓ En stock
$5.79 / unité
Voir la fiche technique →ATSAM4S8BB-UUR
✅ Remplacement direct✓ En stock
$3.05 / unité
Voir la fiche technique →STM32F407VGT6
✅ Remplacement direct✓ En stock
$7.55 / unité
Voir la fiche technique →ATSAM4S8CA-AUR Valeurs maximales et caractéristiques électriques
| Core Architecture | ARM Cortex-M4 (32-bit, single-core) |
| Maximum CPU Clock | 120 MHz |
| FPU / DSP | Single-precision FPU and DSP extensions |
| Program Flash | 512 KB (512K x 8) |
| SRAM | 128 KB |
| Tension d'alimentation | 1.62 V to 3.6 V |
| Boîtier | 100-LQFP (14x14 mm) |
| Type de montage | Surface Mount |
| Température de fonctionnement | -40 C to +85 C (industrial) |
| ADC | 12-bit, multi-channel (per datasheet) |
| Communication | USB 2.0 Full-Speed, CAN, USART, UART, SPI, TWI (I2C), SSC |
| Timers / PWM | Multi-channel 16-bit timers, PWM outputs |
| External Bus Interface | Yes (EBI) |
| Niveau MSL | 3 (per JEDEC J-STD-020) |
| Statut RoHS | Compliant |
| Delivery Form | Tape & Reel |
| Series | SAM4S |
Configuration des broches de ATSAM4S8CA-AUR
| Broche 1 | PA0 — GPIO/Peripheral function |
| Broche 2 | PA1 — GPIO/Peripheral function |
| Broche 3 | PA2 — GPIO/Peripheral function |
| Broche 4 | PA3 — GPIO/Peripheral function |
| Broche 5 | PA4 — GPIO/Peripheral function |
| Broche 6 | PA5 — GPIO/Peripheral function |
| Broche 7 | PA6 — GPIO/Peripheral function |
| Broche 8 | PA7 — GPIO/Peripheral function |
| Broche 9 | VDDIO — I/O supply voltage |
| Broche 10 | VSSIO — I/O ground |
| Broche 11 | PB0 — GPIO/Peripheral function |
| Broche 12 | PB1 — GPIO/Peripheral function |
| Broche 13 | PB2 — GPIO/Peripheral function |
| Broche 14 | PB3 — GPIO/Peripheral function |
| Broche 15 | PB4 — GPIO/Peripheral function |
| Broche 16 | PB5 — GPIO/Peripheral function |
| Broche 17 | PB6 — GPIO/Peripheral function |
| Broche 18 | PB7 — GPIO/Peripheral function |
| Broche 19 | PB8 — GPIO/Peripheral function |
| Broche 20 | PB9 — GPIO/Peripheral function |
| Broche 21 | PB10 — GPIO/Peripheral function |
| Broche 22 | PB11 — GPIO/Peripheral function |
| Broche 23 | PB12 — GPIO/Peripheral function |
| Broche 24 | PB13 — GPIO/Peripheral function |
| Broche 25 | PB14 — GPIO/Peripheral function |
| Broche 26 | PB15 — GPIO/Peripheral function |
| Broche 27 | VDDCORE — Internal regulator output (decoupling) |
| Broche 28 | VSS — Core ground |
| Broche 29 | PC0 — GPIO/Peripheral function |
| Broche 30 | PC1 — GPIO/Peripheral function |
| Broche 31 | PC2 — GPIO/Peripheral function |
| Broche 32 | PC3 — GPIO/Peripheral function |
| Broche 33 | PC4 — GPIO/Peripheral function |
| Broche 34 | PC5 — GPIO/Peripheral function |
| Broche 35 | PC6 — GPIO/Peripheral function |
| Broche 36 | PC7 — GPIO/Peripheral function |
| Broche 37 | PC8 — GPIO/Peripheral function |
| Broche 38 | PC9 — GPIO/Peripheral function |
| Broche 39 | PC10 — GPIO/Peripheral function |
| Broche 40 | PC11 — GPIO/Peripheral function |
| Broche 41 | PC12 — GPIO/Peripheral function |
| Broche 42 | PC13 — GPIO/Peripheral function |
| Broche 43 | PC14 — GPIO/Peripheral function |
| Broche 44 | PC15 — GPIO/Peripheral function |
| Broche 45 | PD0 — GPIO/Peripheral function |
| Broche 46 | PD1 — GPIO/Peripheral function |
| Broche 47 | PD2 — GPIO/Peripheral function |
| Broche 48 | PD3 — GPIO/Peripheral function |
| Broche 49 | PD4 — GPIO/Peripheral function |
| Broche 50 | PD5 — GPIO/Peripheral function |
| Broche 51 | PD6 — GPIO/Peripheral function |
| Broche 52 | PD7 — GPIO/Peripheral function |
| Broche 53 | PD8 — GPIO/Peripheral function |
| Broche 54 | PD9 — GPIO/Peripheral function |
| Broche 55 | PD10 — GPIO/Peripheral function |
| Broche 56 | PD11 — GPIO/Peripheral function |
| Broche 57 | PD12 — GPIO/Peripheral function |
| Broche 58 | PD13 — GPIO/Peripheral function |
| Broche 59 | PD14 — GPIO/Peripheral function |
| Broche 60 | PD15 — GPIO/Peripheral function |
| Broche 61 | VDDIO — I/O supply voltage |
| Broche 62 | VSSIO — I/O ground |
| Broche 63 | PE0 — GPIO/Peripheral function |
| Broche 64 | PE1 — GPIO/Peripheral function |
| Broche 65 | PE2 — GPIO/Peripheral function |
| Broche 66 | PE3 — GPIO/Peripheral function |
| Broche 67 | PE4 — GPIO/Peripheral function |
| Broche 68 | PE5 — GPIO/Peripheral function |
| Broche 69 | PE6 — GPIO/Peripheral function |
| Broche 70 | PE7 — GPIO/Peripheral function |
| Broche 71 | PE8 — GPIO/Peripheral function |
| Broche 72 | VDDPLL — PLL supply |
| Broche 73 | VSSPLL — PLL ground |
| Broche 74 | XIN — Crystal oscillator input |
| Broche 75 | XOUT — Crystal oscillator output |
| Broche 76 | XIN32 — 32 kHz crystal input |
| Broche 77 | XOUT32 — 32 kHz crystal output |
| Broche 78 | NRST — Reset (active low) |
| Broche 79 | JTAGSEL — JTAG/ICE mode select |
| Broche 80 | TDI — JTAG TDI |
| Broche 81 | TDO — JTAG TDO |
| Broche 82 | TMS — JTAG TMS / SWDIO |
| Broche 83 | TCK — JTAG TCK / SWCLK |
| Broche 84 | ERASE — Flash erase strap |
| Broche 85 | WAKEUP — Wake-up pin |
| Broche 86 | VBUS — USB VBUS detect |
| Broche 87 | DP — USB Data+ |
| Broche 88 | DM — USB Data- |
| Broche 89 | VDDUTMI — USB transceiver supply |
| Broche 90 | VDDUTMII — USB transceiver supply |
| Broche 91 | PF0 — GPIO/Peripheral function |
| Broche 92 | PF1 — GPIO/Peripheral function |
| Broche 93 | PF2 — GPIO/Peripheral function |
| Broche 94 | PF3 — GPIO/Peripheral function |
| Broche 95 | PF4 — GPIO/Peripheral function |
| Broche 96 | PF5 — GPIO/Peripheral function |
| Broche 97 | PF6 — GPIO/Peripheral function |
| Broche 98 | PF7 — GPIO/Peripheral function |
| Broche 99 | VDDIO — I/O supply voltage |
| Broche 100 | VSSIO — I/O ground |
Applications typiques
ATSAM4S8CA-AUR convient pour 7 applications: Industrial Control Gateways, Smart Metering and Energy Monitoring, USB Peripherals and HID Devices, Building Automation HMI Panels, Point-of-Sale (POS) Terminals, Automotive Aftermarket CAN Modules, Low-Cost Data Acquisition Systems.
Industrial Control Gateways
The ATSAM4S8CA-AUR fits industrial control gateways because its 120 MHz Cortex-M4 core with FPU handles TCP/IP offload, BACnet or Modbus stacks, and local control loops concurrently, while the 512 KB Flash accommodates protocol libraries plus 128 KB SRAM for packet buffers. The integrated CAN 2.0B controller links directly to field-bus sensor networks, and the USB 2.0 Full-Speed device/host port serves as a local diagnostics or commissioning interface. Power consumption of 200 uA/MHz at low frequency suits always-on industrial nodes where heat and energy are constraints.
Recommandé
Smart Metering and Energy Monitoring
For smart metering, the ATSAM4S8CA-AUR's on-chip 12-bit ADC samples multi-channel voltage and current waveforms, while the Cortex-M4 DSP extensions compute real-time FFT-based harmonics analysis and RMS calculations. The 128 KB SRAM buffers raw sample windows before downsampling, and the 512 KB Flash holds metering firmware plus calibration tables. Low-power back-up mode with the RTC running at 3 uA enables battery-augmented meters that survive line outages, and the 1.62-3.6 V supply range covers rectified 3.3 V rail designs.
Recommandé
USB Peripherals and HID Devices
The ATSAM4S8CA-AUR's integrated USB 2.0 Full-Speed device/host controller and 512 KB Flash support USB HID, CDC, and composite-class devices without an external PHY, reducing BOM cost. The Cortex-M4 DSP extensions accelerate protocol processing for custom USB-class firmware or audio streaming applications. The LQFP-100 package exposes the full 16-bit external bus interface, allowing expansion to external SRAM or NOR Flash for data loggers. Industrial -40 C to +85 C temperature grade suits ruggedized peripherals.
Recommandé
Building Automation HMI Panels
The ATSAM4S8CA-AUR is well-suited to entry-level building automation HMI panels where the 100-LQFP footprint provides enough GPIO for keypads, character LCDs, and status LEDs. The Cortex-M4 with FPU renders UI menus and small graphic primitives, while 128 KB SRAM supports frame buffers for short status graphics. The 12-bit ADC and PWM timers drive ambient light sensing and LED dimming, and the on-chip RTC with back-up power keeps accurate timekeeping during mains brown-outs in residential gateways.
Recommandé
Point-of-Sale (POS) Terminals
POS terminals rely on the ATSAM4S8CA-AUR for keyboard scanning, magnetic-stripe reader interface, thermal printer control, and encrypted PIN-pad handling over SPI/TWI. The 120 MHz Cortex-M4 executes ISO 8583 message parsing and AES encryption for transaction security, while 512 KB Flash accommodates application plus bootloader for OTA update. The CAN peripheral is repurposed for inventory cabinet networking in retail back-office environments, and the 1.62-3.6 V range accepts the typical 3.3 V powered POS rails.
Recommandé
Automotive Aftermarket CAN Modules
The ATSAM4S8CA-AUR's CAN 2.0B controller and 120 MHz Cortex-M4 enable OBD-II scan tools, fleet telemetry dongles, and aftermarket ECU accessories that tap into vehicle CAN buses. The 512 KB Flash holds J1939 and ISO-TP protocol stacks plus application firmware, and the 128 KB SRAM buffers vehicle bus data during cellular uplink bursts. The 100-LQFP industrial temperature grade is acceptable for cabin-mounted aftermarket products, though AEC-Q100 Grade 0 designs should consider ATSAM V70/V71 instead.
Recommandé
Low-Cost Data Acquisition Systems
Multi-channel 12-bit ADC performance, dual USART ports, and SPI/TWI expansion make the ATSAM4S8CA-AUR a fit for portable data loggers. The Cortex-M4 DSP extensions run on-board FFT analysis of vibration, temperature, or strain signals, and 512 KB Flash stores months of compressed data plus application code. The low-power back-up mode with RTC retains time stamps across battery swaps, and the 100-LQFP industrial temperature range suits outdoor or industrial cabinet installations.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATSAM4S8CA-AUR — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATSAM4S8CA-AU | ATSAM4S16CA-AU | ATSAM4S16CA-AUR | ATSAM4S8BA-MU | ATSAM4S8BB-UUR | STM32F407VGT6 |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | STMicroelectronics |
| Package | 100-LQFP (14x14) | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP - same | 100-LQFP - same | 100-LQFP - same (pinout differs) |
| Core / Clock | Cortex-M4 / 120 MHz | Cortex-M4 / 120 MHz | Cortex-M4 / 120 MHz | Cortex-M4 / 120 MHz | Cortex-M4 / 120 MHz | Cortex-M4 / 120 MHz | Cortex-M4 / 168 MHz |
| Flash | 512 KB | 512 KB | 1024 KB | 1024 KB | 512 KB | 512 KB | 1024 KB |
| SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 192 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 | 1.8 V to 3.6 V |
| USB | USB 2.0 FS Device/Host | USB 2.0 FS Device/Host | USB 2.0 FS Device/Host | USB 2.0 FS Device/Host | USB 2.0 FS Device/Host | USB 2.0 FS Device/Host | USB 2.0 FS + HS OTG |
| CAN | CAN 2.0B | CAN 2.0B | CAN 2.0B | CAN 2.0B | CAN 2.0B | CAN 2.0B | CAN 2.0B x2 |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Principaux différenciateurs
- Pin-to-pin compatibility within the SAM4S family (vs ATSAM4S16CA-AU (1024 KB Flash))
- True LQFP-100 cross-brand form-factor match (vs STM32F407VGT6)
- USB 2.0 Full-Speed Device/Host and CAN 2.0B on-chip (vs ATSAM4S4AA-MU (smaller QFN package))
Notes de conception
The ATSAM4S8CA-AUR operates from a single 1.62-3.6 V supply; place a 10 uF bulk capacitor plus 100 nF decoupling on each VDDIO pin pair (the LQFP-100 has four VDDIO/VSSIO pairs at pins 9/10, 61/62, 99/100, and elsewhere). The internal 1.2 V LDO drives VDDCORE (pin 27) and requires a 1 uF low-ESR capacitor. Estimated: dynamic current draw at 120 MHz is approximately 24 mA (200 uA/MHz), so budget headroom when selecting the supply regulator - a 100 mA LDO such as MCP1825 leaves margin for transient peaks.
At industrial -40 C to +85 C ambient with 24 mA active current, the LQFP-100 dissipates roughly 80 mW at 3.3 V, far below thermal limits. However, when USB High-Speed is active on variants that support it, the additional transceiver current and the worst-case 168 MHz operation push dissipation toward 150 mW. Recommended: provide at least 4 cm^2 of top-layer copper tied to VSSIO for thermal spreading; per the SAM4S datasheet, theta-JA on a standard JEDEC 2S2P board is approximately 50 C/W.
Three boot pitfalls trip up first-time users: (1) the ERASE pin (pin 84) must be left floating or pulled high at reset to enter normal mode - pulling it low triggers full Flash erase, which can brick a board. (2) JTAGSEL (pin 79) selects between JTAG and SWD; tying it wrong disables both debug interfaces. (3) When migrating from SAM3S/SAM4N, ensure the boot mode strap on NRST is timed correctly; long reset assertion after power-up is required for crystal stabilization.
Place the main 12 MHz crystal within 8 mm of XIN/XOUT (pins 74/75) and route the traces symmetrically with a ground guard ring to suppress EMI. The 32 kHz crystal on XIN32/XOUT32 (pins 76/77) is even more sensitive - keep it isolated from high-frequency switching nodes. For the USB differential pair (DP pin 87, DM pin 88), maintain 90-ohm differential impedance with no stubs, and place the USBLC6-2SC6 ESD array within 3 mm of the connector.
Informations de conformité
RoHS and REACH compliant per Microchip product page. Industrial temperature grade (-40 C to +85 C), not AEC-Q100 qualified. For AEC-Q100 automotive designs consider SAM V70/V71 or ATSAMx70 series.
