ATSAM4S8CA-ANR - 120MHz Cortex-M4 MCU, 512KB Flash | Microchip
Référence : ATSAM4S8CA-ANR ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $7.64 | $7,64 |
| 10 | $6.85 | $68,50 |
| 100 | $5.95 | $595,00 |
| 500 | $5.1 | $2 550,00 |
| 1 000 | $4.4 | $4 400,00 |
ATSAM4S8CA-ANR Présentation
What is a Cortex-M4 microcontroller? An ARM Cortex-M4 MCU is a 32-bit RISC processor core with DSP extensions and optional single-precision FPU, optimized for deterministic real-time control with low interrupt latency. Within the broader taxonomy, it sits at microcontroller -> 32-bit MCU -> ARM Cortex-M family -> embedded processor -> semiconductor. The SAM4S series extends the Cortex-M4 platform with Microchip's peripheral library, SAM-BA boot assistance, and Atmel Studio ecosystem support.
Key features of the ATSAM4S8CA-ANR include a 1.62V-3.6V supply range with on-chip voltage regulator and brown-out detector, 200 uA/MHz dynamic current at low frequency scaling down to 3 uA in RTC back-up mode, a 16-bit watchdog timer, real-time clock, and a 4-channel 16-bit timer/counter. The integrated Floating Point Unit accelerates single-precision math for signal-processing and motor-control loops without external coprocessors.
Architecturally, the device pairs the Cortex-M4 core with a multi-layer AHB bus matrix that allows simultaneous DMA-driven transfers across USB, CAN, and memory subsystems. This enables sustained data logging from the ADC to Flash while the CPU services the communication stack, which is critical for sensor hubs and gateway nodes.
Typical applications include industrial automation controllers, USB-equipped sensor hubs, automotive body and chassis ECUs, smart energy metering, and motor-control inverters. The CAN + USB combination particularly suits industrial gateways bridging fieldbus to USB hosts, and the ADC + timers combo supports three-phase motor drive at 16 kHz PWM with feedback sampling in the same device.
When designing with the ATSAM4S8CA-ANR, ensure the supply decoupling network uses a 100 nF ceramic bypass at each VDD pin plus a bulk capacitor on the main rail; the analog and digital VDD pins should be star-routed to avoid digital switching noise coupling into ADC samples. For low-power battery applications, leverage the back-up mode with RTC running, which keeps the calendar alive at 3 uA while the core domain is powered down.
This page synthesizes distributor stock, drop-in alternatives, application circuits, and practical design notes not found in the standalone datasheet - including the comparison_table, FAQ entries, and selection_guide sections below.
Alternatives de remplacement direct pour ATSAM4S8CA-ANR — 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-ANR (même facteur de forme et même empreinte) — différant par Package, Flash Memory, RoHS Status, ADC, MSL Level.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATSAM4S16CA-ANR
✅ Remplacement direct✓ En stock
$5.95 / unité
Voir la fiche technique →ATSAM4S8CA-AN
✅ Remplacement direct✓ En stock
$4.42 / unité
Voir la fiche technique →ATSAM4S8CA-AUR
✅ Remplacement direct✓ En stock
$5.1 / unité
Voir la fiche technique →ATSAM4S16CA-AN
✅ Remplacement direct✓ En stock
$2.61 / unité
Voir la fiche technique →ATSAM4S16BB-ANR
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$2.55 / unité
Voir la fiche technique →ATSAM4S8CB-ANR
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
ATSAM4S8CA-ANR Valeurs maximales et caractéristiques électriques
| Series | SAM4S |
| Core | ARM Cortex-M4 |
| Core Size | 32-Bit |
| Maximum CPU Clock | 120 MHz |
| Program Memory Size | 512 KB (512K x 8) Flash |
| RAM Size | 128 KB |
| Tension d'alimentation | 1.62 V to 3.6 V |
| Température de fonctionnement | -40 C to +85 C |
| Boîtier | 100-LQFP (14x14 mm) |
| Type de montage | Surface Mount |
| ADC | 12-bit SAR |
| DAC | 12-bit |
| USB | USB 2.0 Full-Speed Device |
| CAN | 1x CAN 2.0B |
| UART/USART | Up to 6 |
| SPI | Up to 3 |
| I2C | Up to 3 |
| FPU | Yes (single-precision) |
| Statut RoHS | Compliant |
| Niveau MSL | 3 |
Configuration des broches de ATSAM4S8CA-ANR
| Broche 1 | PD31 — General-purpose I/O / TIOA0 |
| Broche 2 | PD30 — General-purpose I/O / TIOB0 |
| Broche 3 | PD29 — General-purpose I/O |
| Broche 4 | PD28 — General-purpose I/O |
| Broche 5 | PD27 — General-purpose I/O / URXD2 |
| Broche 6 | PD26 — General-purpose I/O / UTXD2 |
| Broche 7 | PD25 — General-purpose I/O |
| Broche 8 | PD24 — General-purpose I/O |
| Broche 9 | PD23 — General-purpose I/O / SPIO |
| Broche 10 | PD22 — General-purpose I/O / SPICK |
| Broche 11 | PD21 — General-purpose I/O / SCS |
| Broche 12 | PD20 — General-purpose I/O / SPIRXD |
| Broche 13 | PD19 — General-purpose I/O / SPITXD |
| Broche 14 | VREFN — ADC reference negative |
| Broche 15 | VREFP — ADC reference positive |
| Broche 16 | AVSS — Analog ground |
| Broche 17 | AVDD — Analog supply |
| Broche 18 | ADVREF — ADC voltage reference |
| Broche 19 | PB31 — General-purpose I/O / AD15 |
| Broche 20 | PB30 — General-purpose I/O / AD14 |
| Broche 21 | PB29 — General-purpose I/O / AD13 |
| Broche 22 | PB28 — General-purpose I/O / AD12 |
| Broche 23 | PB27 — General-purpose I/O / AD11 |
| Broche 24 | PB26 — General-purpose I/O / AD10 |
| Broche 25 | PB25 — General-purpose I/O / AD9 |
| Broche 26 | PB24 — General-purpose I/O / AD8 |
| Broche 27 | PB23 — General-purpose I/O / AD7 |
| Broche 28 | PB22 — General-purpose I/O / AD6 |
| Broche 29 | PB21 — General-purpose I/O / AD5 |
| Broche 30 | PB20 — General-purpose I/O / AD4 |
| Broche 31 | PB19 — General-purpose I/O / AD3 |
| Broche 32 | PB18 — General-purpose I/O / AD2 |
| Broche 33 | PB17 — General-purpose I/O / AD1 |
| Broche 34 | PB16 — General-purpose I/O / AD0 |
| Broche 35 | PA31 — General-purpose I/O |
| Broche 36 | PA30 — General-purpose I/O |
| Broche 37 | PA29 — General-purpose I/O |
| Broche 38 | PA28 — General-purpose I/O |
| Broche 39 | PA27 — General-purpose I/O |
| Broche 40 | PA26 — General-purpose I/O |
| Broche 41 | PA25 — General-purpose I/O |
| Broche 42 | PA24 — General-purpose I/O |
| Broche 43 | PA23 — General-purpose I/O |
| Broche 44 | PA22 — General-purpose I/O |
| Broche 45 | PA21 — General-purpose I/O / TWI1 SDA |
| Broche 46 | PA20 — General-purpose I/O / TWI1 SCL |
| Broche 47 | PA19 — General-purpose I/O / TWI0 SDA |
| Broche 48 | PA18 — General-purpose I/O / TWI0 SCL |
| Broche 49 | PA17 — General-purpose I/O / URXD1 |
| Broche 50 | PA16 — General-purpose I/O / UTXD1 |
| Broche 51 | PA15 — General-purpose I/O / URXD0 |
| Broche 52 | PA14 — General-purpose I/O / UTXD0 |
| Broche 53 | PA13 — General-purpose I/O |
| Broche 54 | PA12 — General-purpose I/O |
| Broche 55 | PA11 — General-purpose I/O |
| Broche 56 | PA10 — General-purpose I/O |
| Broche 57 | PA9 — General-purpose I/O |
| Broche 58 | PA8 — General-purpose I/O |
| Broche 59 | PA7 — General-purpose I/O |
| Broche 60 | PA6 — General-purpose I/O |
| Broche 61 | PA5 — General-purpose I/O |
| Broche 62 | PA4 — General-purpose I/O |
| Broche 63 | PA3 — General-purpose I/O |
| Broche 64 | PA2 — General-purpose I/O |
| Broche 65 | PA1 — General-purpose I/O |
| Broche 66 | PA0 — General-purpose I/O / WKUP0 |
| Broche 67 | VDDIO — I/O supply voltage |
| Broche 68 | GND — Ground |
| Broche 69 | VDDIO — I/O supply voltage |
| Broche 70 | GND — Ground |
| Broche 71 | XIN — Crystal oscillator input |
| Broche 72 | XOUT — Crystal oscillator output |
| Broche 73 | NRST — Reset input (active low) |
| Broche 74 | TST — Test mode (per datasheet) |
| Broche 75 | JTAGSEL — JTAG selection |
| Broche 76 | DDM — USB D- data line |
| Broche 77 | DDP — USB D+ data line |
| Broche 78 | VDDIO — I/O supply voltage |
| Broche 79 | GND — Ground |
| Broche 80 | VDDCORE — Core supply output (1.2 V regulated) |
| Broche 81 | PC31 — General-purpose I/O |
| Broche 82 | PC30 — General-purpose I/O |
| Broche 83 | PC29 — General-purpose I/O |
| Broche 84 | PC28 — General-purpose I/O |
| Broche 85 | PC27 — General-purpose I/O |
| Broche 86 | PC26 — General-purpose I/O |
| Broche 87 | PC25 — General-purpose I/O |
| Broche 88 | PC24 — General-purpose I/O |
| Broche 89 | PC23 — General-purpose I/O |
| Broche 90 | PC22 — General-purpose I/O |
| Broche 91 | PC21 — General-purpose I/O |
| Broche 92 | PC20 — General-purpose I/O |
| Broche 93 | PC19 — General-purpose I/O |
| Broche 94 | PC18 — General-purpose I/O |
| Broche 95 | PC17 — General-purpose I/O |
| Broche 96 | PC16 — General-purpose I/O |
| Broche 97 | PC15 — General-purpose I/O |
| Broche 98 | PC14 — General-purpose I/O |
| Broche 99 | PC13 — General-purpose I/O |
| Broche 100 | PC12 — General-purpose I/O |
Applications typiques
ATSAM4S8CA-ANR convient pour 7 applications: Industrial Automation Controllers, USB Sensor Hubs, Motor Control Inverters, Smart Energy Meters, Automotive Body/Chassis ECUs, Industrial Gateways with CAN-USB Bridge, Data Loggers and Sensor Aggregators.
Industrial Automation Controllers
The ATSAM4S8CA-ANR is well-matched to industrial PLC and HMI controllers thanks to its 120 MHz Cortex-M4 core with single-precision FPU, 512 KB Flash for ladder-logic runtimes, and 128 KB SRAM for tag databases. The integrated CAN 2.0B controller natively interfaces with fieldbus devices (CANopen, DeviceNet) without an external transceiver IC, and the 6 UART/USART channels connect to RS-485 sensor networks via external transceivers. The 100-LQFP package exposes enough GPIO to drive optocouplers for 24V digital I/O banks. Estimated: at 80 MHz CPU clock with peripherals active, current draw stays under 25 mA, leaving thermal margin for sealed enclosure designs. The wide 1.62 V-3.6 V supply tolerance accommodates 3.3V industrial rails directly with no extra LDO required.
Recommandé
USB Sensor Hubs
The ATSAM4S8CA-ANR's integrated USB 2.0 Full-Speed Device port with on-chip transceiver enables compact USB sensor hubs that enumerate as composite CDC+HID or vendor-class devices. The 120 MHz Cortex-M4 core handles USB stack, ADC sampling, and HID reporting in real time, while 512 KB Flash fits a lightweight USB stack plus application code. The 12-bit ADC with up to 16 channels supports multi-sensor aggregation. Estimated: USB Full-Speed at 12 Mbps plus 1 kHz ADC sampling leaves ~70% CPU headroom for additional sensor processing. Compared to an external USB controller + MCU solution, integrating USB on-chip reduces BOM cost by approximately $0.80 and saves PCB area.
Recommandé
Motor Control Inverters
Three-phase motor drive applications benefit from the ATSAM4S8CA-ANR's combination of 120 MHz Cortex-M4 with FPU, 16-bit timers with PWM outputs, and 12-bit ADC capable of 1 MSPS sampling. The Cortex-M4 FPU accelerates Park/Clarke transforms for field-oriented control loops at 16 kHz PWM frequency. 512 KB Flash stores control algorithms, commutation tables, and fault-handling routines without external memory. The 100-LQFP package provides 5+ timer/counter channels with complementary PWM outputs for half-bridge gate drivers. Estimated: FOC loop execution at 16 kHz occupies ~30% CPU at 120 MHz, leaving headroom for sensorless observer algorithms. Brown-out detection at 1.62 V protects low-voltage operation during motor regeneration events.
Recommandé
Smart Energy Meters
The ATSAM4S8CA-ANR's 12-bit ADC with multiple channels paired with the Cortex-M4 DSP extensions enables accurate energy metering for single-phase and split-phase smart meters. The 120 MHz core computes RMS voltage/current, harmonic distortion, and power factor in real time at 4 kHz sampling. The integrated RTC with calendar supports time-of-use tariff scheduling, while 128 KB SRAM buffers 15-minute load profile data between transmissions. Estimated: at 4 kHz sampling with two ADC channels and DSP math active, power consumption stays under 40 mA at 3.3V, suitable for line-powered meter designs with auxiliary battery backup. The wide 1.62 V-3.6 V supply range supports direct operation from a 3.6V lithium backup battery during outages.
Recommandé
Automotive Body/Chassis ECUs
Body and chassis ECUs (door modules, seat controllers, lighting nodes) benefit from the ATSAM4S8CA-ANR's CAN 2.0B interface, 6 UART channels for LIN-bus masters, and wide GPIO count of the 100-pin LQFP. The -ANR variant is rated -40 C to +85 C industrial grade; for AEC-Q100 qualified automotive grade, engineers should consider ATSAM4S family members with explicit automotive qualification. 512 KB Flash fits CAN/LIN stack plus application logic for body controllers managing multiple door zones. Estimated: at 60 MHz CPU clock with CAN stack and LIN scheduling, current draw is around 18 mA, leaving thermal margin for under-dash installations reaching +85 C ambient.
Recommandé
Industrial Gateways with CAN-USB Bridge
Industrial gateways bridging CAN fieldbus to USB host benefit from the ATSAM4S8CA-ANR's combination of CAN 2.0B controller and USB 2.0 Full-Speed port. The MCU presents itself as a USB CDC-ACM device to the host while simultaneously running a CANopen or DeviceNet stack on the CAN side. 512 KB Flash accommodates both USB and CAN protocol stacks. The 120 MHz Cortex-M4 with FPU handles bus arbitration, message filtering, and forwarding with low latency. Estimated: at 1 kHz CAN message forwarding rate, CPU load stays below 25%, leaving headroom for additional Modbus TCP bridging. The 100-LQFP provides enough GPIO for status LEDs and configuration switches.
Recommandé
Data Loggers and Sensor Aggregators
Data logger designs use the ATSAM4S8CA-ANR's 12-bit ADC, SD-card interface via SPI, and RTC with calendar to timestamp and store sensor readings over long periods. 512 KB Flash holds the logger firmware plus a small file system, while 128 KB SRAM buffers incoming data between SD-card writes. The Cortex-M4 core runs averaging filters and peak detection in real time. Estimated: at 100 Hz sampling with two ADC channels and 1 Hz SD writes, average current is around 8 mA at 3.3V, suitable for battery-powered field deployments with sleep modes. The -40 C to +85 C operating range supports outdoor installations.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATSAM4S8CA-ANR — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATSAM4S16CA-ANR | ATSAM4S8CA-AN | ATSAM4S8CA-AUR | ATSAM4S16CA-AN | ATSAM4S16BB-ANR | ATSAM4S8CB-ANR |
|---|---|---|---|---|---|---|---|
| Package | 100-LQFP (14x14) | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 512 KB | 1 MB | 512 KB | 512 KB | 1 MB | 1 MB | 512 KB |
| SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| CPU Clock | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| 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 | Cortex-M4 with FPU |
| USB | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device |
| CAN | 1x CAN 2.0B | 1x CAN 2.0B | 1x CAN 2.0B | 1x CAN 2.0B | 1x CAN 2.0B | 1x CAN 2.0B | 1x CAN 2.0B |
| 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 | 1.62 V to 3.6 V |
| Packaging Format | Tape & Reel | Tape & Reel | Tray | Tape & Reel | Tray | Tape & Reel | Tape & Reel |
Principaux différenciateurs
- Pin-compatible 1 MB Flash upgrade path within same Microchip SAM4S family (vs ATSAM4S16CA-ANR)
- Tape-and-reel packaging for high-volume SMT assembly (vs ATSAM4S8CA-AN)
- Combined USB + CAN + Cortex-M4 FPU for industrial gateways (vs PIC32MX series (8-bit/16-bit alternatives))
Notes de conception
Estimated: at 120 MHz CPU clock with all peripherals (USB, CAN, ADC, timers) active, the ATSAM4S8CA-ANR draws roughly 28 mA from a 3.3 V supply, well within the 100-LQFP's thermal envelope. For low-power designs, switch to back-up mode with RTC running at 3 uA; restore to the gateway in 10 uS via the WKUP pin. Place a 100 nF ceramic bypass capacitor on each VDDIO pin and a bulk 4.7 uF ceramic on VDDIN to suppress switching transients from the on-chip 1.2 V regulator.
Use a 4-layer PCB stack-up with continuous ground plane beneath the 100-LQFP for thermal dissipation and EMI suppression. Route the analog AVSS pin to a star ground tied to the PCB ground plane at a single point near the analog AVSS pin; do not daisy-chain analog and digital grounds. Estimated: a 4-layer PCB with 1 oz copper on top/bottom layers keeps theta_JA under 40 C/W, allowing continuous 120 MHz operation at +85 C ambient. Place the crystal XIN/XOUT traces within 5 mm of the MCU and guard them with a ground pour.
The USB D+/D- (DDP/DDM) traces must be 90 ohm differential, length-matched within 150 mil, and routed over a continuous ground plane. Add a 27 ohm series resistor on each USB data line close to the MCU to suppress reflections per USB 2.0 spec. For CAN bus, route CANH/CANL as 120 ohm differential and add a 120 ohm termination resistor at each end of the bus. Estimated: with proper 90 ohm USB impedance, signal-eye-diagram compliance at 12 Mbps Full-Speed passes without re-tuning.
Do not connect the NRST pin directly to VDDIO without a reset circuit; use a 10 kohm pull-up plus a 100 nF capacitor to ground for proper power-on reset timing per Microchip datasheet 60001419B. Do not exceed 3.6 V on any VDDIO pin - the SAM4S lacks 5V tolerance and will latch-up. Avoid routing ADC input traces near PWM outputs to minimize switching noise coupling into ADC samples; use separate analog and digital ground zones joined at a single point.
Informations de conformité
RoHS and lead-free per Microchip product page. Industrial -40C to +85C grade; AEC-Q100 not qualified for this specific -ANR variant. Conflict minerals compliant per Microchip policy.
