ATSAM4S8BA-AN - SAM4S 120MHz Cortex-M4 MCU 512KB | Microchip
Référence : ATSAM4S8BA-AN ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $6.5 | $6,50 |
| 10 | $5.85 | $58,50 |
| 100 | $5.2 | $520,00 |
| 500 | $4.65 | $2 325,00 |
| 1 000 | $4.1 | $4 100,00 |
ATSAM4S8BA-AN Présentation
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), working memory (SRAM), and a rich set of peripherals such as timers, communication controllers, and analog blocks. Within the broader taxonomy, the ATSAM4S8BA-AN belongs to the class of ARM Cortex-M4 microcontrollers -> 32-bit microcontrollers -> embedded microcontrollers -> microcontrollers -> integrated circuits (ICs) -> semiconductors. Cortex-M4 devices specifically add single-precision FPU support, DSP extensions, and a Memory Protection Unit (MPU), placing them above Cortex-M3 in computational capability while retaining deterministic interrupt latency.
Key features include a hardware Floating Point Unit (FPU) for single-precision IEEE-754 math, an 8 KB instruction cache plus Flash read accelerator, multi-layer bus matrix, multi-channel peripheral DMA, and a full-speed USB 2.0 device with on-chip PHY. Peripherals include up to five USARTs, two UARTs, two TWIs, two SPIs, an I²S, a 12-bit 1 Msps ADC, a 12-bit DAC, and a 16-bit timer/counter block. The 64-LQFP package is pin-to-pin compatible with SAM7S, SAM3N, and SAM3S families, easing migration across the Microchip portfolio.
The SAM4S architecture is built around an advanced high-performance bus (AHB) matrix that connects the Cortex-M4 core, SRAM, Flash and peripherals through parallel paths to deliver the 120 MHz throughput with deterministic access. An integrated SleepWalking peripheral event controller, low-power RTC, and backup domain enable deep-sleep states below 1 uA in Wait mode and below 1 uA in Backup mode.
Typical applications include industrial control and HMI panels, USB-equipped smart sensors and barcode scanners, motor control, smart energy metering, and Point-of-Sale terminals where deterministic real-time response and on-chip analog integration reduce BOM cost. For portable or battery-powered designs, the low-power Run and Wait modes (when available) extend runtime without sacrificing processing headroom.
When designing with the ATSAM4S8BA-AN, verify VDDIO decoupling with 100 nF X7R ceramics placed within 3 mm of each supply pin, and ensure the 12 MHz external crystal or 32.768 kHz low-frequency crystal is laid out per the SAM4S hardware design guidelines to meet USB jitter requirements. The pin-to-pin compatibility with SAM7S/SAM3N/SAM3S allows direct footprint reuse when migrating code from older Atmel parts.
This page synthesizes distributor pricing, drop-in compatible SAM4S8 family variants, cross-family SAM3N/SAM3S migration options, and practical hardware design notes not found in the manufacturer datasheet.
Alternatives de remplacement direct pour ATSAM4S8BA-AN — 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 ATSAM4S8BA-AN (même facteur de forme et même empreinte) — différant par Package, SRAM, RoHS Status, USB, Operating Temperature.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATSAM4S8BA-AU
✅ Remplacement direct✓ En stock
$3.72 / unité
Voir la fiche technique →ATSAM4S8CA-AU
✅ Remplacement direct✓ En stock
$5.74 / unité
Voir la fiche technique →ATSAM4S4BA-AN
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATSAM4S2BA-AU
✅ Remplacement direct✓ En stock
$3.71 / unité
Voir la fiche technique →ATSAM4SD16CA-AUR
✅ Remplacement direct✓ En stock
$7.49 / unité
Voir la fiche technique →ATSAM3S2CA-AU
✅ Remplacement direct✓ En stock
$4.25 / unité
Voir la fiche technique →ATSAM4S8BA-AN Valeurs maximales et caractéristiques électriques
| Core | ARM Cortex-M4 with FPU |
| Operating Frequency | 120 MHz |
| Flash Memory | 512 KB |
| SRAM | 128 KB |
| Supply Voltage (VDDIO) | 3.0 V to 3.6 V |
| Operating Voltage Range (with internal regulator) | 1.62 V to 3.6 V |
| Active Power Consumption | 200 uA/MHz |
| Boîtier | 64-LQFP (10x10 mm) |
| Type de montage | Surface Mount |
| Nombre de broches | 64 |
| ADC | 12-bit, up to 1 Msps |
| DAC | 12-bit |
| USB | USB 2.0 Full-Speed Device with on-chip PHY |
| Température de fonctionnement | -40C to +85C |
| Statut RoHS | Compliant |
| Lead-Free | Yes |
| Pin-to-Pin Compatible Family | SAM7S, SAM3N, SAM3S |
Configuration des broches de ATSAM4S8BA-AN
| Broche 1 | PA0 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 2 | PA1 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 3 | PA2 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 4 | PA3 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 5 | PA4 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 6 | PA5 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 7 | PA6 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 8 | PA7 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 9 | VDDIO — I/O supply voltage (3.0V to 3.6V) |
| Broche 10 | VSS — Digital ground |
| Broche 11 | PB0 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 12 | PB1 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 13 | PB2 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 14 | PB3 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 15 | PB4 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 16 | PB5 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 17 | PB6 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 18 | PB7 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 19 | PB8 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 20 | PB9 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 21 | PB10 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 22 | PB11 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 23 | PB12 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 24 | PB13 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 25 | PB14 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 26 | VDDCORE — Core voltage output (internal regulator) |
| Broche 27 | VSS — Digital ground |
| Broche 28 | PC0 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 29 | PC1 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 30 | PC2 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 31 | PC3 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 32 | PC4 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 33 | PC5 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 34 | PC6 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 35 | PC7 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 36 | PC8 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 37 | PC9 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 38 | PC10 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 39 | PC11 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 40 | PC12 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 41 | PC13 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 42 | PC14 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 43 | PC15 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 44 | PC16 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 45 | PC17 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 46 | PC18 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 47 | VDDIO — I/O supply voltage (3.0V to 3.6V) |
| Broche 48 | VSS — Digital ground |
| Broche 49 | PD0 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 50 | PD1 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 51 | PD2 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 52 | PD3 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 53 | PD4 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 54 | PD5 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 55 | PD6 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 56 | PD7 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 57 | PD8 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 58 | PD9 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 59 | PD10 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 60 | PD11 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 61 | PD12 — GPIO / peripheral input-output (peripheral multiplexing per datasheet) |
| Broche 62 | NRST — Active-low reset input |
| Broche 63 | VSS — Digital ground |
| Broche 64 | VDDIO — I/O supply voltage (3.0V to 3.6V) |
Applications typiques
ATSAM4S8BA-AN convient pour 7 applications: Industrial USB Sensor Hub, Smart Energy Metering / Data Logger, Motor Control (BLDC / PMSM), Point-of-Sale (POS) Terminal, Human-Machine Interface (HMI) Panel, Industrial Barcode / Scanner, Home Appliance Control Board.
Industrial USB Sensor Hub
The ATSAM4S8BA-AN's integrated USB 2.0 Full-Speed Device controller with on-chip PHY eliminates the need for an external transceiver, reducing BOM cost and PCB area in USB-connected sensor hubs. Its 512 KB Flash accommodates USB class drivers (HID, CDC, vendor) plus application firmware, while the Cortex-M4 FPU handles sensor-fusion math at 120 MHz. The 64-LQFP package exposes up to 5 USARTs and 2 SPIs for multi-sensor bridging, and the 1 Msps 12-bit ADC provides local analog acquisition alongside digital sensors.
Recommandé
Smart Energy Metering / Data Logger
The ATSAM4S8BA-AN suits smart energy meters where deterministic real-time response and on-chip analog integration are essential. Its 12-bit 1 Msps ADC captures voltage and current waveforms for power calculations, while the Cortex-M4 DSP extensions perform metering math such as RMS and THD with hardware acceleration. The 128 KB SRAM buffers measurement samples, and the multi-layer bus matrix keeps USB, ADC DMA, and CPU access deterministic. Low-power Wait modes (under 1 uA when properly configured) extend battery life in wireless meter nodes.
Recommandé
Motor Control (BLDC / PMSM)
The ATSAM4S8BA-AN's 120 MHz Cortex-M4 with FPU executes field-oriented control (FOC) loops for BLDC and PMSM motors within typical 10-20 kHz PWM periods. Its 16-bit timer/counter block generates complementary PWM with dead-time insertion, and the 12-bit DAC provides reference signals for analog control loops. The 512 KB Flash stores motor control libraries plus application code, while the multi-channel peripheral DMA offloads sensor sampling from the CPU. Hardware FPU accelerates Park/Clarke transforms required for FOC.
Recommandé
Point-of-Sale (POS) Terminal
The ATSAM4S8BA-AN is well-suited for POS terminals needing USB device connectivity, secure storage, and display/keypad interfaces. Its on-chip USB PHY connects directly to a USB Type-B connector for host communication, while multiple USARTs link to magnetic-stripe readers, printers, and PIN pads. The 512 KB Flash holds payment application firmware plus cryptographic libraries, and 128 KB SRAM buffers transaction data. The hardware FPU accelerates barcode decoding and encryption primitives in real time.
Recommandé
Human-Machine Interface (HMI) Panel
The ATSAM4S8BA-AN drives HMI panels with TFT displays and touch input using its integrated LCD controller (TFT mode), parallel data bus, and I2C/SPI for touch sensing. The Cortex-M4 with hardware FPU renders graphics smoothly, and the 512 KB Flash accommodates GUI libraries. The USB device interface supports firmware updates over USB, while low-power SleepWalking peripherals allow wake-on-touch with minimal active CPU time, extending battery life in portable HMI devices.
Recommandé
Industrial Barcode / Scanner
The ATSAM4S8BA-AN is a strong fit for industrial barcode scanners and imagers because its Cortex-M4 DSP extensions accelerate 1D/2D barcode decode algorithms in real time. The on-chip USB 2.0 Full-Speed device connects the scanner to a host PC or POS terminal, while the 1 Msps 12-bit ADC digitizes the image sensor output. The 512 KB Flash stores decode libraries and application code; multi-channel DMA offloads pixel data movement. The 64-LQFP package suits compact scanner enclosures.
Recommandé
Home Appliance Control Board
The ATSAM4S8BA-AN runs home appliance control boards (washing machines, dishwashers, refrigerators) where robust I/O, motor control, and user interfaces converge. Its 16-bit timer with PWM controls motors and inverters, the 12-bit ADC reads temperature and analog sensors, and the multiple UART/USART interfaces link to user-interface boards and sensors. Pin-to-pin compatibility with SAM3S/SAM3N/SAM7S families allows easy migration between cost points within the Microchip portfolio. Industrial temperature grade -40C to +85C suits appliance environments.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATSAM4S8BA-AN — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATSAM4S8BA-AU | ATSAM4S8CA-AU | ATSAM4S4BA-AN | ATSAM4S2BA-AU | ATSAM4SD16CA-AUR | ATSAM3S2CA-AU |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 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 | ARM Cortex-M3 (no FPU) |
| Maximum Clock | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 64 MHz |
| Flash Memory | 512 KB | 512 KB | 512 KB | 256 KB (-50%) | 128 KB (-75%) | 2048 KB (+300%) | 128 KB (-75%) |
| SRAM | 128 KB | 128 KB | 128 KB | 64 KB (-50%) | 64 KB (-50%) | 160 KB (+25%) | 32 KB (-75%) |
| USB Controller | USB 2.0 FS Device + on-chip PHY | USB 2.0 FS Device + on-chip PHY | USB 2.0 FS Device + on-chip PHY | USB 2.0 FS Device + on-chip PHY | USB 2.0 FS Device + on-chip PHY | USB 2.0 FS Device + on-chip PHY | USB 2.0 FS Device + on-chip PHY |
| Operating 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 | 1.62 V to 3.6 V |
Principaux différenciateurs
- Hardware Floating Point Unit and DSP extensions (vs ATSAM3S2CA-AU (Cortex-M3))
- Higher Flash density in same package (vs ATSAM4S4BA-AN (256 KB Flash))
- Larger SRAM for sensor-fusion buffers (vs ATSAM4S2BA-AU (64 KB SRAM))
Notes de conception
Decouple every VDDIO pin with a 100 nF X7R ceramic placed within 3 mm of the pin, and add a bulk 4.7 uF to 10 uF ceramic near the IC. The VDDCORE pin is the output of the internal 1.2V regulator and requires its own 1 uF decoupling capacitor per datasheet (document 60001419B). For low-power designs, route VDDCORE independently and avoid external loads on this pin.
The 12 MHz main crystal and 32.768 kHz low-frequency crystal traces must be short, symmetric, and guarded by a ground pour to meet USB jitter specifications. USB DP/DM traces should be 90 ohm differential and kept under 50 mm, with no stubs, to comply with USB 2.0 FS signal integrity requirements. Place the ESD protection array within 3 mm of the USB connector.
The ATSAM4S8BA-AN's NRST reset input is sensitive to noise; add a 10 kohm pull-up and a 100 nF capacitor to ground for proper POR behavior. Do not drive PA0/PA1 (which double as XIN/XOUT 32 kHz crystal pins) with external signals unless the crystal oscillator is disabled. Verify JTAG/SWD pin usage before PCB layout, as TCK/TMS/TDI/TDO share GPIO functions and may need disabling for production use.
Informations de conformité
RoHS compliant per Microchip product page. The 'AN' suffix indicates green/lead-free industrial (-40C to +85C) option. AEC-Q100 not applicable for industrial/consumer MCU.
