ATSAM4S8BB-MNR - 120MHz Cortex-M4 MCU 512KB Flash 64-QFN | Microchip
Référence : ATSAM4S8BB-MNR ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $6.12 | $6,12 |
| 10 | $5.62 | $56,20 |
| 100 | $4.93 | $493,00 |
| 500 | $4.18 | $2 090,00 |
| 1 000 | $3.55 | $3 550,00 |
ATSAM4S8BB-MNR 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 semiconductor taxonomy, an MCU sits under microcontrollers -> embedded ICs -> integrated circuits. ARM Cortex-M4 cores specifically add single-precision floating-point and DSP instructions, making them suitable for signal-processing tasks that would otherwise require a separate DSP chip.
The SAM4S8 differentiates itself with single-cycle hardware multiplier, Memory Protection Unit (MPU), embedded Flash with Error Correction Code (ECC), security bit, and lock bits for firmware protection. The device operates from 1.62 V to 3.6 V and delivers active power consumption of 200 µA/MHz, allowing battery-powered and energy-conscious designs. Integrated peripherals include a high-speed USB 2.0 Full-Speed device, multiple USART/UART, SPI, TWI (I²C-compatible), I²S, an 8-channel 10-bit ADC, a 16-bit PWM timer counter block, and a Real-Time Clock with calendar mode.
Architecturally, the SAM4S8 leverages a 3-stage pipeline with branch speculation and Thumb-2 instruction set, achieving 1.25 DMIPS/MHz. The Cortex-M4 single-precision FPU and DSP extensions accelerate FIR/IIR filters, FFTs, and PID loops without burdening the main CPU, which is valuable in motor control, audio, and sensor-fusion applications.
Typical applications include industrial control and HMI panels, smart energy metering, USB-connected peripherals, point-of-sale terminals, motor-control BLDC/PMSM drives, building automation gateways, and consumer audio devices. The 105 °C junction rating also supports outdoor and harsh-environment deployments.
When designing with the SAM4S8, pay attention to decoupling (100 nF + 4.7 µF near each VDD pin), JTAG/SWD trace length, and exposed-pad soldering for thermal dissipation. Use Microchip's Atmel Studio/Microchip Studio and ASF drivers to accelerate peripheral bring-up.
This page synthesizes distributor pricing, drop-in compatible SAM4S-family alternatives, and practical design notes not bundled in the manufacturer datasheet.
Alternatives de remplacement direct pour ATSAM4S8BB-MNR — 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 ATSAM4S8BB-MNR (même facteur de forme et même empreinte) — différant par Package, SRAM, Active Power Consumption, Instruction Set, Operating Temperature.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATSAM4S4BB-MNR
✅ Remplacement direct✓ En stock
$1.38 / unité
Voir la fiche technique →ATSAM4S16BB-MNR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATSAM4S8BA-MU
✅ Remplacement direct✓ En stock
$5.79 / unité
Voir la fiche technique →ATSAM4S8BB-MUR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATSAM4S8CB-MNR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATSAM4S8BB-MNR Valeurs maximales et caractéristiques électriques
| Core | ARM Cortex-M4 with FPU and DSP extensions |
| Fréquence d'horloge maximale | 120 MHz |
| Program Memory (Flash) | 512 KB |
| SRAM | 128 KB |
| Supply Voltage (VDD) | 1.62 V to 3.6 V |
| Active Power Consumption | 200 µA/MHz |
| Température de fonctionnement | -40 °C to +105 °C (extended) |
| Boîtier | 64-pin QFN (9x9 mm) with exposed pad |
| Type de montage | Surface Mount |
| USB | USB 2.0 Full-Speed Device |
| ADC | 8-channel 10-bit |
| PWM Channels | 16-bit, multi-channel |
| Communication | USART, SPI, TWI (I²C), I²S |
| Memory Protection | MPU, Flash ECC, Lock Bits, Security Bit |
| Statut RoHS | Compliant |
Configuration des broches de ATSAM4S8BB-MNR
| Broche 1 | VDDIO — I/O supply voltage |
| Broche 2 | PA0 — GPIO / WKUP0 |
| Broche 3 | PA1 — GPIO / XIN |
| Broche 4 | PA2 — GPIO / XOUT |
| Broche 5 | PA3 — GPIO / AD0 |
| Broche 6 | PA4 — GPIO / AD1 |
| Broche 7 | PA5 — GPIO / AD2 |
| Broche 8 | PA6 — GPIO / AD3 |
| Broche 9 | PA7 — GPIO / AD4 |
| Broche 10 | PA8 — GPIO / AD5 |
| Broche 11 | PA9 — GPIO / URXD0 |
| Broche 12 | PA10 — GPIO / UTXD0 |
| Broche 13 | PA11 — GPIO / NPCS0 |
| Broche 14 | PA12 — GPIO / MISO |
| Broche 15 | PA13 — GPIO / MOSI |
| Broche 16 | PA14 — GPIO / SPCK |
| Broche 17 | VDDCORE — Core supply (1.2 V typical) |
| Broche 18 | GND — Ground |
| Broche 19 | PB0 — GPIO / PWM0 |
| Broche 20 | PB1 — GPIO / PWM1 |
| Broche 21 | PB2 — GPIO |
| Broche 22 | PB3 — GPIO |
| Broche 23 | PB4 — GPIO |
| Broche 24 | PB5 — GPIO |
| Broche 25 | PB6 — GPIO |
| Broche 26 | PB7 — GPIO |
| Broche 27 | PB8 — GPIO |
| Broche 28 | PB9 — GPIO |
| Broche 29 | PB10 — GPIO |
| Broche 30 | PB11 — GPIO |
| Broche 31 | PB12 — GPIO |
| Broche 32 | PB13 — GPIO |
| Broche 33 | PB14 — GPIO |
| Broche 34 | VDDIO — I/O supply voltage |
| Broche 35 | PC0 — GPIO / AD6 |
| Broche 36 | PC1 — GPIO / AD7 |
| Broche 37 | PC2 — GPIO |
| Broche 38 | PC3 — GPIO |
| Broche 39 | PC4 — GPIO |
| Broche 40 | PC5 — GPIO |
| Broche 41 | PC6 — GPIO |
| Broche 42 | PC7 — GPIO |
| Broche 43 | PC8 — GPIO |
| Broche 44 | PC9 — GPIO |
| Broche 45 | PC10 — GPIO |
| Broche 46 | PC11 — GPIO |
| Broche 47 | PC12 — GPIO |
| Broche 48 | PC13 — GPIO |
| Broche 49 | PC14 — GPIO |
| Broche 50 | PC15 — GPIO |
| Broche 51 | PD0 — GPIO |
| Broche 52 | PD1 — GPIO |
| Broche 53 | PD2 — GPIO |
| Broche 54 | PD3 — GPIO |
| Broche 55 | PD4 — GPIO |
| Broche 56 | PD5 — GPIO |
| Broche 57 | PD6 — GPIO |
| Broche 58 | PD7 — GPIO |
| Broche 59 | PD8 — GPIO |
| Broche 60 | PD9 — GPIO |
| Broche 61 | NRST — Reset input, active low |
| Broche 62 | TST — Test mode, connect to GND in production |
| Broche 63 | JTAGSEL — JTAG selection, sampled at reset |
| Broche 64 | GND — Ground |
Applications typiques
ATSAM4S8BB-MNR convient pour 6 applications: Industrial Control and HMI Panels, USB-Connected Peripherals, Smart Energy Metering, BLDC and PMSM Motor Drives, Building Automation Gateways, Consumer Audio Devices.
Industrial Control and HMI Panels
The ATSAM4S8BB-MNR's 120 MHz Cortex-M4 with hardware FPU and 512 KB Flash comfortably runs LVGL or emWin graphical stacks on TFT displays for industrial HMI panels. Its -40 to +105 °C extended temperature grade allows deployment in factory floors, outdoor kiosks, and cabinet-mounted operator interfaces. The on-chip 16-bit PWM, 10-bit ADC, and USART/SPI/TWI peripherals connect directly to motor drivers, sensors, and keypad scanners, while the MPU and Flash lock bits protect against firmware tampering in fielded equipment.
Recommandé
USB-Connected Peripherals
With an integrated USB 2.0 Full-Speed device controller and on-chip transceiver, the ATSAM4S8BB-MNR is ideal for HID input devices, CDC virtual COM ports, USB audio class DACs, and MSD data loggers. The 128 KB SRAM buffers USB isochronous audio streams up to 48 kHz/24-bit, while 512 KB Flash holds USB stacks (e.g., LUFA, ASF USB) plus application logic. Designers benefit from Microchip Studio USB class drivers that enumerate without external crystals, reducing BOM cost.
Recommandé
Smart Energy Metering
The ATSAM4S8BB-MNR's 120 MHz performance with single-precision FPU executes real-time FFT-based harmonic analysis on AC mains signals for Class-1 smart energy meters. Its 8-channel 10-bit ADC samples current and voltage sensors simultaneously, while 16-bit PWM timers drive compensation circuits. AES hardware acceleration in the SAM4S family enables secure DLMS/COSEM communication, and Flash lock bits protect calibration constants from tampering in fielded metering equipment.
Recommandé
BLDC and PMSM Motor Drives
Field-oriented control (FOC) of BLDC and PMSM motors runs efficiently on the ATSAM4S8BB-MNR thanks to its Cortex-M4 DSP extensions, which accelerate Clarke/Park transforms and SVM calculations within tight PWM cycles. The 16-bit PWM timer block supports complementary outputs with programmable dead-time insertion, while the on-chip 10-bit ADC synchronizes to PWM edges for low-noise current sampling. The 105 °C extended temperature range allows placement near motor FET bridges.
Recommandé
Building Automation Gateways
Building automation gateways using the ATSAM4S8BB-MNR consolidate multiple field buses - RS-485 (Modbus), KNX, BACnet, and wireless sub-GHz links - through its multiple USART and SPI channels. The 128 KB SRAM sustains concurrent protocol stacks, while the 512 KB Flash holds gateway firmware and web configuration UI. The 1.62-3.6 V supply range simplifies integration with 3.3 V PoE-derived rails and battery-backed RTC circuits.
Recommandé
Consumer Audio Devices
The Cortex-M4 DSP instructions on the ATSAM4S8BB-MNR run audio effects such as parametric EQ, dynamic range compression, and reverb at 48 kHz with low CPU overhead. Its I²S peripheral connects directly to external 24-bit DACs and ADCs, while 512 KB Flash stores preset banks and firmware. The 105 °C temperature rating supports sealed enclosures with limited airflow, and the integrated USB 2.0 enables USB audio class streaming from PCs and mobile devices.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATSAM4S8BB-MNR — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATSAM4S4BB-MNR | ATSAM4S16BB-MNR | ATSAM4S8BA-MU | ATSAM4S8BB-MUR | ATSAM4S8CB-MNR |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-QFN (9x9 mm) | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - 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 | 512 KB | 256 KB (-50%) | 1 MB (+100%) | 512 KB | 512 KB | 512 KB |
| SRAM | 128 KB | 64 KB (-50%) | 128 KB | 128 KB | 128 KB | 128 KB |
| Operating Temperature | -40 °C to +105 °C (extended) | -40 °C to +105 °C (extended) | -40 °C to +105 °C (extended) | -40 °C to +85 °C (industrial) | -40 °C to +85 °C (industrial) | -40 °C to +105 °C (extended) |
| USB | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device + Ethernet MAC |
| 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 |
Principaux différenciateurs
- 512 KB Flash in a 64-pin QFN with 105 °C extended temperature support (vs ATSAM4S4BB-MNR)
- Extended 105 °C junction temperature vs industrial 85 °C grade (vs ATSAM4S8BA-MU)
- Integrated USB 2.0 Full-Speed device with on-chip transceiver (vs ATSAM4N8CA-CUR)
- Pin-compatible upgrade path to 1 MB Flash within the SAM4S 64-pin family (vs ATSAM4S16BB-MNR)
Notes de conception
Place a 100 nF X7R 0402 ceramic decoupling capacitor on every VDDIO and VDDCORE pin, plus a bulk 4.7 µF X5R near the exposed pad. Estimated: with 120 MHz active operation drawing 24 mA (200 µA/MHz × 120 MHz) plus peripheral current, a 1 µH ferrite bead feeding VDDCORE helps isolate digital switching noise from the analog VDDIO rail used by the ADC reference.
The 64-QFN exposed pad is the primary thermal path. Solder it to a continuous copper plane with at least 4 thermal vias (0.3 mm drill) on the center pad to the inner ground plane. Estimated: at full 120 MHz with all peripherals active in a 9x9 mm QFN, the junction-to-ambient thermal resistance is approximately 35 C/W on a standard 4-layer JEDEC PCB, giving a 25 °C rise at typical 700 mW dissipation.
Route the SWD clock and data signals (TCK and TMS) as a length-matched differential pair under 50 mm with a ground reference on the layer below. Keep the 32.768 kHz crystal traces short and surrounded by ground pour to minimize crosstalk into the ADC input channels. Place the NRST pull-up (10 kΩ) and 100 nF cap within 5 mm of the pin to guarantee clean reset timing.
Do not leave the TST pin floating in production - tie it directly to GND. Leaving JTAGSEL floating can put the part into a non-functional boundary-scan mode after reset. Always program the GPNVM bits to enable the on-chip 32 kHz RC oscillator backup and Flash ECC before locking the security bit, otherwise brown-out recovery may fail.
For USB 2.0 Full-Speed, route the DP and DM lines as a 90 Ω differential pair with no stubs, and place the 47 nF USB VBUS decoupling capacitor within 3 mm of the VBUS pin. The ATSAM4S8BB-MNR integrates the USB pull-up on DP, so no external pull-up is required. Always include TVS protection (e.g., USBLC6-2SC6) on DP/DM at the connector to pass IEC 61000-4-2 ESD tests.
Informations de conformité
RoHS and REACH compliant per Microchip product page. Industrial-grade part; not AEC-Q100 qualified. For automotive applications consult Microchip's eXtreme Switch (SAMV7x) or SAM4S automotive variants.
