ATSAM4S8BA-ANR - ARM Cortex-M4 120MHz 512KB MCU | Microchip
MPN: ATSAM4S8BA-ANR ✓ NakahandaATSAM4S8BA-ANR Ulas
An ARM Cortex-M microcontroller is a 32-bit RISC processor core designed for embedded applications that require deterministic real-time response, low power, and rich peripheral integration. The Cortex-M4 variant adds a single-precision FPU and DSP extensions, sitting between the smaller Cortex-M0/M0+ and the higher-end Cortex-M7 in the ARM v7-M architecture hierarchy. Microcontrollers in this class integrate the CPU core, on-chip non-volatile memory, SRAM, and a wide peripheral set into a single package, replacing many discrete components in industrial, consumer, and IoT designs.
Key features of the ATSAM4S8BA-ANR include a Cortex-M4 core with FPU and DSP instructions, 512 KB Flash, 128 KB SRAM, and an enhanced Peripheral Touch Controller supporting capacitive touch interfaces. It provides a wide range of connectivity peripherals including USB 2.0 Full-Speed, up to two CAN controllers, multiple USART/SPI/TWI interfaces, an 8-channel 10-bit ADC, and a 16-bit PWM timer. The device targets industrial and consumer applications that demand deterministic real-time performance with low power consumption.
At the architectural level the SAM4S uses an advanced 90 nm process and integrates a high-bandwidth multi-layer AHB/APB bus matrix. The Cortex-M4 core implements Thumb-2 instruction set with hardware single-cycle MAC and saturating arithmetic, enabling DSP workloads such as audio processing, motor control loops, and sensor fusion without external DSP chips. Up to 8 DMA channels offload data movement between peripherals and memory, further freeing CPU bandwidth.
Typical applications for the ATSAM4S8BA-ANR include industrial control and HMI panels, USB peripherals, motor control for BLDC and stepper drives, smart metering, sensor hubs, and home automation gateways. Designers value the part for its deterministic interrupt latency, mature Atmel/Microchip software ecosystem (ASF, Harmony 3), and pin-compatibility with SAM4N, SAM3S, SAM3N and SAM7S legacy 64-pin devices for easy migration.
Design consideration: ensure decoupling capacitors (100 nF ceramic plus 4.7 uF bulk) are placed within 5 mm of the VDDCORE and VDDIO pins, and that the NRST line is pulled up correctly to guarantee clean Cortex-M4 startup.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Mga alternatibo na pwedeng ilagay na ATSAM4S8BA-ANR — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok ATSAM4S8BA-ANR (parehas na form factor at footprint) — pagkakaiba sa Operating Temperature, RoHS Status, Package, SRAM, Flash Memory.
ATSAM4S16BA-ANR
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
ATSAM4S4BA-ANR
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
ATSAM4S8BA-AN
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →ATSAM4S2BA-AU
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →ATSAM4S16CA-CU
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →ATSAM4N8BA-MU
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →ATSAM4S8BA-ANR Mga Pinakamataas na Rating at Electrical Characteristics
| Series | SAM4S |
| Core | ARM Cortex-M4 with FPU and DSP |
| Core Architecture | ARM v7-M |
| Maximum CPU Frequency | 120 MHz |
| Program Memory (Flash) | 512 KB (512K x 8) |
| SRAM | 128 KB |
| Width ng Data Bus | 32 bit |
| Supply Voltage (VDDCORE/VDDIO) | 1.62 V to 3.6 V |
| Packhaging | 64-LQFP (10x10 mm) |
| Uri ng Pagpapasok | Surface Mount |
| Temperature na Operasyon | -40 C to +85 C (industrial) |
| Peripheral Touch Controller (PTC) | Yes (enhanced, capacitive touch) |
| USB | USB 2.0 Full-Speed |
| CAN | Yes (2x CAN) |
| ADC | 10-bit |
| DMA Channels | 8 |
| Supply Current (typical) | 200 uA/MHz (active) |
| Tindminan RoHS | Compliant |
| Packaging | Tape & Reel (TR) |
Gabay sa Pin Configuration ng ATSAM4S8BA-ANR 64-lqfp (10x10 mm)
Pin configuration para sa ATSAM4S8BA-ANR (64-lqfp (10x10 mm) package). Kasama sa digital IC na ito ang GPIO, mga communication interface (UART, SPI, I2C), at mga power pin. Sumangguni sa datasheet ng manufacturer para sa mga alternatibong function ng pin at mga opsyon sa configuration. Mahalaga para sa disenyo ng embedded system at PCB layout.
Wala ng detalyadong pinout data na magagamit para sa ATSAM4S8BA-ANR.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
ATSAM4S8BA-ANR ay nararapat para sa 6 aplikasyons: Industrial HMI with TFT-LCD, USB Peripherals and HID Devices, BLDC and PMSM Motor Control, Smart Energy Metering, Sensor Hubs and IoT Gateways, Capacitive Touch User Interfaces.
Industrial HMI with TFT-LCD
The ATSAM4S8BA-ANR is well suited for industrial human-machine-interface panels driving small TFT-LCD displays. The Cortex-M4 at 120 MHz combined with 128 KB SRAM provides sufficient framebuffer memory for 320x240 QVGA panels and the DMAC handles LCD data movement without CPU overhead. Engineers should pair this part with an external SPI-driven TFT controller like the ILI9341 or SSD1963. The -40 C to +85 C industrial temperature rating and 64-LQFP package make it drop-in compatible with existing SAM4S designs.
Inirekomenda
USB Peripherals and HID Devices
The ATSAM4S8BA-ANR's integrated USB 2.0 Full-Speed peripheral with on-chip transceiver and 2 KB endpoint FIFO RAM makes it ideal for USB HID, CDC, and custom-class peripherals. The 120 MHz Cortex-M4 core handles USB stack overhead while remaining free for application logic. Common implementations include barcode scanners, custom keyboards, USB-to-UART bridges, and data loggers. The 64-LQFP footprint exposes DP/DM on dedicated pins so PCB layout is straightforward.
Inirekomenda
BLDC and PMSM Motor Control
The ATSAM4S8BA-ANR delivers deterministic Cortex-M4 performance for sensorless BLDC and PMSM motor control. The 16-bit PWM timer with dead-time insertion, three-phase PWM complement generation, and Quadrature Decoder interface enable field-oriented control (FOC) loops at 20-50 kHz. The 10-bit ADC with up to 16 channels measures phase currents while the integrated Cortex-M4 FPU accelerates Park/Clarke transforms. The wide 1.62-3.6 V supply and industrial temperature range suit motor drive boards.
Inirekomenda
Smart Energy Metering
The ATSAM4S8BA-ANR's combination of Cortex-M4 DSP extensions, 128 KB SRAM, and dual CAN controllers supports single-phase and three-phase smart energy metering. The DSP instructions accelerate RMS and harmonic calculations from ADC samples, while CAN enables integration with building automation networks. The enhanced Peripheral Touch Controller supports capacitive button interfaces on the meter front panel. Industrial temperature range and long-term Microchip supply assurance suit metering deployments.
Inirekomenda
Sensor Hubs and IoT Gateways
The ATSAM4S8BA-ANR integrates a Cortex-M4 core, multiple USART/SPI/TWI interfaces, dual CAN, and USB for IoT sensor hubs and edge gateways. The 8-channel DMA offloads data movement from I2C sensors, SPI peripherals, and UART modems, while the 120 MHz core handles protocol stacks such as MQTT-SN or LoRaWAN. With 512 KB Flash and 128 KB SRAM the part runs complete firmware images for sensor fusion and edge analytics, with the industrial temperature range suiting outdoor enclosures.
Inirekomenda
Capacitive Touch User Interfaces
The ATSAM4S8BA-ANR's enhanced Peripheral Touch Controller (PTC) drives up to 256 capacitive touch sensors using a driven shield + X/Y matrix architecture. This eliminates external touch ICs in applications such as appliance control panels, smart thermostats, and industrial keypads. The 120 MHz core runs the touch acquisition state machine in parallel with application code, while 128 KB SRAM supports slider/wheel gesture recognition libraries. The 64-LQFP package provides ample GPIO for LED feedback and rotary encoder inputs.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for ATSAM4S8BA-ANR — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | ATSAM4S16BA-ANR | ATSAM4S4BA-ANR | ATSAM4S8BA-AN | ATSAM4S2BA-AU | ATSAM4N8BA-MU |
|---|---|---|---|---|---|---|
| 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 |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 512 KB | 1024 KB (+100%) | 256 KB (-50%) | 512 KB (same) | 128 KB (-75%) | 512 KB (same) |
| SRAM | 128 KB | 160 KB (+25%) | 64 KB (-50%) | 128 KB (same) | 64 KB (-50%) | 96 KB (-25%) |
| CPU Frequency | 120 MHz | 120 MHz (same) | 120 MHz (same) | 120 MHz (same) | 120 MHz (same) | 100 MHz (-17%) |
| Core | Cortex-M4 with FPU | Cortex-M4 with FPU | Cortex-M4 with FPU | Cortex-M4 with FPU | Cortex-M4 with FPU | Cortex-M4 with FPU |
| Supply Voltage | 1.62 V to 3.6 V | 1.62 V to 3.6 V (same) | 1.62 V to 3.6 V (same) | 1.62 V to 3.6 V (same) | 1.62 V to 3.6 V (same) | 1.62 V to 3.6 V (same) |
| Packaging | Tape & Reel | Tape & Reel | Tape & Reel | Tray | Tray | Tray |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C (same) | -40 C to +85 C (same) | -40 C to +85 C (same) | -40 C to +85 C (same) | -40 C to +85 C (same) |
Pangunahing mga Pagkakaiba
- Higher SRAM vs SAM4S2BA-AU (kumpara saATSAM4S2BA-AU)
- Higher Flash vs SAM4S4BA-ANR (kumpara saATSAM4S4BA-ANR)
- Pin-compatibility with SAM4N/SAM3S/SAM7S legacy (kumpara saCross-brand Cortex-M4 MCUs)
- Cortex-M4 FPU vs Cortex-M0+ competitors (kumpara saLower-cost Cortex-M0+ MCUs)
Talaan ng Disenyo
Place a 100 nF X7R ceramic decoupling capacitor within 5 mm of each VDDCORE and VDDIO pin, plus a shared 4.7 uF bulk capacitor at the regulator output. The SAM4S internal LDO supplies VDDCORE from VDDIO; bypassing both rails is mandatory for stable Cortex-M4 operation across the 1.62-3.6 V range. The NRST line must be pulled up to VDDIO through a 10 kohm resistor and decoupled with 100 nF for clean reset behavior.
Route the 32.768 kHz crystal traces (XIN32/XOUT32) as short and symmetric as possible with a guard ring tied to ground, and place load capacitors (typically 12-22 pF) directly at the MCU pins. For the high-speed main crystal (HSE), keep traces under 5 mm and surround them with ground pour. Avoid routing any switching signals across the crystal area to minimize jitter on the Cortex-M4 clock.
The USB DP/DM traces must be routed as a 90 ohm differential pair with continuous reference ground beneath, kept under 50 mm total length. Place the USB ESD protection device close to the connector. For EMI-sensitive applications, route the SWD/JTAG signals (TMS, TCK, TDO, TDI, NRST) away from noisy power traces and add 4.7 kohm pull-ups on TMS/TCK/NRST to keep the debug interface quiet during normal operation.
Do not leave the BMS (Boot Mode Select) pin floating at startup - it must be tied high for normal Flash boot or low for SAM-BA bootloader entry. Leaving BMS floating causes unpredictable boot behavior. Also, ensure the ERASE pin is not asserted low at power-up, as this triggers a full Flash erase and remap. Engineers migrating from SAM3S firmware must reconfigure the PMC, EFC, and SUPC peripheral base addresses since these differ from SAM3S.
Impormasyon ng Pagsunod sa Kautusan
RoHS and REACH compliance confirmed per Microchip product page. AEC-Q100 not applicable - this is an industrial-grade MCU, not an automotive-qualified part. Lead-free reflow profile per JEDEC J-STD-020.
