ATSAME70Q21B-AN - ARM Cortex-M7 MCU 300MHz 2MB Flash | Microchip
Référence : ATSAME70Q21B-AN ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $27.47 | $27,47 |
| 10 | $24.5 | $245,00 |
| 100 | $21.2 | $2 120,00 |
| 500 | $18.95 | $9 475,00 |
| 1 000 | $17.4 | $17 400,00 |
ATSAME70Q21B-AN Présentation
An MCU (Microcontroller Unit) is a single-chip computer that integrates a CPU core, memory, and programmable peripherals. The Cortex-M7 class is ARM's highest-performance microcontroller core, featuring a 6-stage pipeline, superscalar dual-issue execution, hardware FPU, and tightly-coupled memories for deterministic latency. Compared to Cortex-M4 parts, Cortex-M7 devices offer roughly 2x DMIPS performance, an enhanced SIMD instruction set, and an L1 cache, making them suitable for advanced signal processing and graphics applications.
Key features of the ATSAME70Q21B-AN include: 300 MHz core clock, 2 MB embedded Flash, 384 KB SRAM with ECC, 16-bit External Bus Interface (EBI) supporting SDRAM, High-Speed USB Host/Device with on-chip PHY, dual CAN-FD controllers, Ethernet MAC (GMAC) with 1588 PTP, 12-bit 2 MSPS ADC, and image sensor interface. Security features include a True Random Number Generator (TRNG), hardware AES, secure boot, and flash tamper detection. The peripheral set is interconnected via AHB/APB matrix for low-latency DMA access.
The device integrates a multi-layer bus matrix with two DMA controllers (16 channels total) and dual ports, allowing concurrent CPU and data transfer operations without contention. Its SmartMem peripherals include eMMC/SD card interface, NAND Flash controller with ECC, and SDRAM controller. The Event System enables hardware-triggered peripheral cooperation without CPU intervention, improving real-time deterministic behavior.
Typical applications include industrial motor control (FOC for PMSM/BLDC drives), grid protection and smart energy metering, automotive body and infotainment subsystems, high-end audio processing (up to 192 kHz 24-bit codecs), industrial Ethernet nodes with EtherCAT or Profinet support, point-of-sale terminals, and medical diagnostic imaging front-ends. The wide peripheral mix also suits self-contained additive-manufacturing controllers and surveillance DVR systems.
When designing with the ATSAME70Q21B-AN, ensure robust VDDCORE decoupling with 100 nF + 4.7 µF ceramic capacitors per the reference schematic design guide, since high-frequency CPU transitions demand low-impedance power delivery. Plan the PCB for the 20x20 mm LQFP footprint with multiple GND return paths and keep the high-speed USB traces 90 ohms differential-impedance matched.
This page synthesizes distributor pricing, drop-in alternatives within the SAM E70 family, and reference-design-aware engineering notes not assembled in the manufacturer datasheet, offering engineers a faster path from spec review to prototype.
Alternatives de remplacement direct pour ATSAME70Q21B-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 ATSAME70Q21B-AN (même facteur de forme et même empreinte) — différant par Package, ADC, Ethernet, Operating Temperature, USB.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATSAME70Q20B-AN
✅ Remplacement direct✓ En stock
$10.85 / unité
Voir la fiche technique →ATSAME70N20B-AN
✅ Remplacement direct✓ En stock
$11.4 / unité
Voir la fiche technique →ATSAMS70Q21B-AN
✅ Remplacement direct✓ En stock
$11.6 / unité
Voir la fiche technique →ATSAME70Q21A-CNT
✅ Remplacement direct✓ En stock
$8.2 / unité
Voir la fiche technique →ATSAMV71Q21B-CB
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
R7FA6M5AH3CFC
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATSAME70Q21B-AN Valeurs maximales et caractéristiques électriques
| Core | ARM Cortex-M7 with FPU and DSP extensions |
| Fréquence d'horloge maximale | 300 MHz |
| Program Memory | 2 MB (2048 Kbytes) Flash |
| Data Memory | 384 KB SRAM |
| Operating Voltage Range | 1.62 V to 3.6 V (VDDIO), 1.2 V (VDDCORE) |
| Boîtier | 144-pin LQFP (20 x 20 mm) |
| Type de montage | Surface Mount |
| Plage de température de fonctionnement | -40 C to +105 C (industrial) |
| ADC | 12-bit, up to 2 MSPS |
| High-Speed USB | USB Host + Device with on-chip HS PHY |
| Ethernet | GMAC (10/100) with IEEE 1588 PTP |
| CAN-FD Controllers | 2 |
| External Memory Interface | EBI with 16-bit data bus, SDRAM/NAND/NOR support |
| Image Sensor Interface (ISI) | Yes |
| Hardware AES | Yes (AES-256) |
| True Random Number Generator (TRNG) | Yes |
| DMA Channels | 16 (two 8-channel XDMAC) |
| Statut RoHS | ROHS3 Compliant |
Configuration des broches de ATSAME70Q21B-AN
| Broche 1 | PA0 — GPIO / Peripheral A |
| Broche 2 | PA1 — GPIO / Peripheral A |
| Broche 3 | VDDIO — I/O supply voltage |
| Broche 4 | PA2 — GPIO / Peripheral A |
| Broche 5 | VSS — Ground |
| Broche 6 | PA3 — GPIO / Peripheral A |
| Broche 7 | PA4 — GPIO / Peripheral A |
| Broche 8 | PA5 — GPIO / Peripheral A |
| Broche 9 | PA6 — GPIO / Peripheral A |
| Broche 10 | PA7 — GPIO / Peripheral A |
| Broche 11 | VDDCORE — Core supply voltage (1.2 V) |
| Broche 12 | VSS — Ground |
| Broche 13 | PA8 — GPIO / Peripheral A |
| Broche 14 | PA9 — GPIO / Peripheral A |
| Broche 15 | PA10 — GPIO / Peripheral A |
| Broche 16 | PA11 — GPIO / Peripheral A / USB D- |
| Broche 17 | PA12 — GPIO / Peripheral A / USB D+ |
| Broche 18 | PA13 — GPIO / Peripheral A |
| Broche 19 | PA14 — GPIO / Peripheral A |
| Broche 20 | VDDIO — I/O supply voltage |
| Broche 21 | VSS — Ground |
| Broche 22 | PA15 — GPIO / Peripheral A |
| Broche 23 | PA16 — GPIO / Peripheral A |
| Broche 24 | PA17 — GPIO / Peripheral A |
| Broche 25 | PA18 — GPIO / Peripheral A |
| Broche 26 | PA19 — GPIO / Peripheral A |
| Broche 27 | PA20 — GPIO / Peripheral A |
| Broche 28 | PA21 — GPIO / Peripheral A |
| Broche 29 | PA22 — GPIO / Peripheral A |
| Broche 30 | PA23 — GPIO / Peripheral A |
| Broche 31 | PA24 — GPIO / Peripheral A |
| Broche 32 | PA25 — GPIO / Peripheral A |
| Broche 33 | PA26 — GPIO / Peripheral A |
| Broche 34 | PA27 — GPIO / Peripheral A |
| Broche 35 | PA28 — GPIO / Peripheral A |
| Broche 36 | PA29 — GPIO / Peripheral A |
| Broche 37 | PA30 — GPIO / Peripheral A |
| Broche 38 | PA31 — GPIO / Peripheral A |
| Broche 39 | PB0 — GPIO / Peripheral B |
| Broche 40 | PB1 — GPIO / Peripheral B |
| Broche 41 | PB2 — GPIO / Peripheral B |
| Broche 42 | PB3 — GPIO / Peripheral B |
| Broche 43 | PB4 — GPIO / Peripheral B |
| Broche 44 | PB5 — GPIO / Peripheral B |
| Broche 45 | PB6 — GPIO / Peripheral B |
| Broche 46 | PB7 — GPIO / Peripheral B |
| Broche 47 | PB8 — GPIO / Peripheral B |
| Broche 48 | PB9 — GPIO / Peripheral B |
| Broche 49 | PB10 — GPIO / Peripheral B |
| Broche 50 | PB11 — GPIO / Peripheral B |
| Broche 51 | PB12 — GPIO / Peripheral B |
| Broche 52 | PB13 — GPIO / Peripheral B |
| Broche 53 | PB14 — GPIO / Peripheral B |
| Broche 54 | PB15 — GPIO / Peripheral B |
| Broche 55 | VDDIO — I/O supply voltage |
| Broche 56 | VSS — Ground |
| Broche 57 | PB16 — GPIO / Peripheral B |
| Broche 58 | PB17 — GPIO / Peripheral B |
| Broche 59 | PB18 — GPIO / Peripheral B |
| Broche 60 | PB19 — GPIO / Peripheral B |
| Broche 61 | PB20 — GPIO / Peripheral B |
| Broche 62 | PB21 — GPIO / Peripheral B |
| Broche 63 | PB22 — GPIO / Peripheral B |
| Broche 64 | PB23 — GPIO / Peripheral B |
| Broche 65 | PB24 — GPIO / Peripheral B |
| Broche 66 | PB25 — GPIO / Peripheral B |
| Broche 67 | PB26 — GPIO / Peripheral B |
| Broche 68 | PB27 — GPIO / Peripheral B |
| Broche 69 | PB28 — GPIO / Peripheral B |
| Broche 70 | PB29 — GPIO / Peripheral B |
| Broche 71 | PB30 — GPIO / Peripheral B |
| Broche 72 | PB31 — GPIO / Peripheral B |
| Broche 73 | PC0 — GPIO / Peripheral C |
| Broche 74 | PC1 — GPIO / Peripheral C |
| Broche 75 | PC2 — GPIO / Peripheral C |
| Broche 76 | PC3 — GPIO / Peripheral C |
| Broche 77 | PC4 — GPIO / Peripheral C |
| Broche 78 | PC5 — GPIO / Peripheral C |
| Broche 79 | PC6 — GPIO / Peripheral C |
| Broche 80 | PC7 — GPIO / Peripheral C |
| Broche 81 | VDDIO — I/O supply voltage |
| Broche 82 | VSS — Ground |
| Broche 83 | PC8 — GPIO / Peripheral C |
| Broche 84 | PC9 — GPIO / Peripheral C |
| Broche 85 | PC10 — GPIO / Peripheral C |
| Broche 86 | PC11 — GPIO / Peripheral C |
| Broche 87 | PC12 — GPIO / Peripheral C |
| Broche 88 | PC13 — GPIO / Peripheral C |
| Broche 89 | PC14 — GPIO / Peripheral C |
| Broche 90 | PC15 — GPIO / Peripheral C |
| Broche 91 | PC16 — GPIO / Peripheral C |
| Broche 92 | PC17 — GPIO / Peripheral C |
| Broche 93 | PC18 — GPIO / Peripheral C |
| Broche 94 | PC19 — GPIO / Peripheral C |
| Broche 95 | PC20 — GPIO / Peripheral C |
| Broche 96 | PC21 — GPIO / Peripheral C |
| Broche 97 | PC22 — GPIO / Peripheral C |
| Broche 98 | PC23 — GPIO / Peripheral C |
| Broche 99 | PC24 — GPIO / Peripheral C |
| Broche 100 | PC25 — GPIO / Peripheral C |
| Broche 101 | PC26 — GPIO / Peripheral C |
| Broche 102 | PC27 — GPIO / Peripheral C |
| Broche 103 | PC28 — GPIO / Peripheral C |
| Broche 104 | PC29 — GPIO / Peripheral C |
| Broche 105 | PC30 — GPIO / Peripheral C |
| Broche 106 | PC31 — GPIO / Peripheral C |
| Broche 107 | PD0 — GPIO / Peripheral D |
| Broche 108 | PD1 — GPIO / Peripheral D |
| Broche 109 | PD2 — GPIO / Peripheral D |
| Broche 110 | PD3 — GPIO / Peripheral D |
| Broche 111 | PD4 — GPIO / Peripheral D |
| Broche 112 | PD5 — GPIO / Peripheral D |
| Broche 113 | PD6 — GPIO / Peripheral D |
| Broche 114 | PD7 — GPIO / Peripheral D |
| Broche 115 | PD8 — GPIO / Peripheral D |
| Broche 116 | PD9 — GPIO / Peripheral D |
| Broche 117 | PD10 — GPIO / Peripheral D |
| Broche 118 | PD11 — GPIO / Peripheral D |
| Broche 119 | PD12 — GPIO / Peripheral D |
| Broche 120 | PD13 — GPIO / Peripheral D |
| Broche 121 | PD14 — GPIO / Peripheral D |
| Broche 122 | PD15 — GPIO / Peripheral D |
| Broche 123 | VDDIO — I/O supply voltage |
| Broche 124 | VSS — Ground |
| Broche 125 | PD16 — GPIO / Peripheral D |
| Broche 126 | PD17 — GPIO / Peripheral D |
| Broche 127 | PD18 — GPIO / Peripheral D |
| Broche 128 | PD19 — GPIO / Peripheral D |
| Broche 129 | PD20 — GPIO / Peripheral D |
| Broche 130 | PD21 — GPIO / Peripheral D |
| Broche 131 | PD22 — GPIO / Peripheral D |
| Broche 132 | PD23 — GPIO / Peripheral D |
| Broche 133 | PD24 — GPIO / Peripheral D |
| Broche 134 | PD25 — GPIO / Peripheral D |
| Broche 135 | PD26 — GPIO / Peripheral D |
| Broche 136 | PD27 — GPIO / Peripheral D |
| Broche 137 | PD28 — GPIO / Peripheral D |
| Broche 138 | PD29 — GPIO / Peripheral D |
| Broche 139 | PD30 — GPIO / Peripheral D |
| Broche 140 | PD31 — GPIO / Peripheral D |
| Broche 141 | NRST — Reset input (active low) |
| Broche 142 | TST — Test mode |
| Broche 143 | VDDBU — Backup supply |
| Broche 144 | VDDIO — I/O supply voltage |
Applications typiques
ATSAME70Q21B-AN convient pour 6 applications: Industrial Motor Control (FOC), Industrial Ethernet / IIoT Gateway, High-End Audio Processing, Automotive Infotainment HMI, Smart Grid Energy Metering, Surveillance DVR / NVR Edge.
Industrial Motor Control (FOC)
The ATSAME70Q21B-AN is purpose-built for sensorless and sensored Field-Oriented Control of PMSM and BLDC motors. Its Cortex-M7 FPU and DSP extensions accelerate Park/Clarke transforms, while two 2 MSPS 12-bit ADCs simultaneously sample phase currents for closed-loop bandwidth above 20 kHz. Built-in position-sensor timers and the Quadrature Decoder interface read Hall sensors or incremental encoders without inline decoders, simplifying firmware and reducing latency. The 384 KB SRAM accommodates ripple-free FOC state buffers and observer algorithms, while Ethernet/CAN-FD connectivity enables real-time EtherCAT/CANopen integration into industrial servo systems.
Recommandé
Industrial Ethernet / IIoT Gateway
The ATSAME70Q21B-AN integrates a 10/100 Ethernet MAC with IEEE 1588 PTP hardware timestamping, ideal for Profinet, EtherCAT slave or Modbus-TCP industrial nodes. Its dual CAN-FD controllers bridge to legacy automotive/fieldbus networks, while the GMAC and XDMAC offload protocol stacks so the Cortex-M7 focuses on application logic. The 2 MB Flash fits full TCP/IP + TLS libraries plus a web management UI, and 384 KB SRAM sustains packet buffers and TLS handshake state. The LQFP-144 footprint provides 5V-tolerant GPIO for direct connection to industrial sensor rails without inline transceivers.
Recommandé
High-End Audio Processing
The ATSAME70Q21B-AN's Cortex-M7 DSP engine can run software codecs and effects up to 192 kHz / 24-bit per channel for digital mixer oscillators. Its double-precision FPU preserves audio dynamic range through cascaded biquad filters and FFT-based spectrum analysers without clipping artifacts. The SSC/I2S interfaces connect directly to audio DACs such as the AKM4621EF, while the 2 MB Flash stores multitrack loops and the 384 KB SRAM acts as an effect line ring buffer. The integrated HS USB enables class-compliant UAC2 audio streaming to host PCs at 480 Mbps.
Recommandé
Automotive Infotainment HMI
The ATSAME70Q21B-AN drives TFT LCD displays up to XGA resolution via the Image Sensor Interface (ISI) and external memory bus, suiting digital instrument clusters and infotainment HMIs. Its MIPI with multi-layer bus matrix renders instrument-cluster graphics with minimal CPU overhead, while the HS USB supports smartphone projection protocols. The integrated hardware AES and TRNG enable secure over-the-air firmware updates. Designers select ATSAME70Q21B-AAB variants for AEC-Q100 Grade 2 compliance in the same LQFP-144 footprint to bypass PCB rework on automotive-grade SKUs.
Recommandé
Smart Grid Energy Metering
The ATSAME70Q21B-AN's dual 2 MSPS ADCs synchronously capture line voltages and currents, while the Cortex-M7 DSP library computes 12-bit/24-bit harmonic analysis up to the 63rd harmonic in real time. The TRNG and hardware AES secure the meter's cryptographic keys for signed billing data, and the integrated GMAC transports DLMS/COSEM or IEC 61850 frames to concentrators. The wide operating temperature range supports outdoor cabinet installations, while 2 MB Flash stores calibration tables and signed firmware images with rollback protection.
Recommandé
Surveillance DVR / NVR Edge
The ATSAME70Q21B-AN's Image Sensor Interface streams up to 720p video from parallel CMOS sensors, while the Cortex-M7 runs H.264 baseline encoding in software at CIF/VGA resolutions, suiting edge NVR or single-channel DVR designs. The HS USB enables webcam-class streaming at 480 Mbps, and the SD/eMMC interface stores local recordings. The 384 KB SRAM holds reference frames plus compressed bitstream buffers; security-critical applications benefit from the integrated TRNG and hardware AES for video stream encryption.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATSAME70Q21B-AN — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATSAME70Q20B-AN | ATSAME70N20B-AN | ATSAMS70Q21B-AN | ATSAME70Q21A-CNT | ATSAMV71Q21B-CB | R7FA6M5AH3CFC |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Renesas Electronics |
| Package | LQFP-144 (20x20) | LQFP-144 (20x20) - same | LQFP-144 (20x20) - same | LQFP-144 (20x20) - same | LQFP-144 (20x20) - same | LQFP-144 (20x20) - same | LQFP-144 - same |
| Core | ARM Cortex-M7 @ 300 MHz | ARM Cortex-M7 @ 300 MHz | ARM Cortex-M7 @ 300 MHz | ARM Cortex-M7 @ 300 MHz | ARM Cortex-M7 @ 300 MHz (Rev A) | ARM Cortex-M7 @ 300 MHz | ARM Cortex-M33 @ 300 MHz |
| Flash | 2 MB | 2 MB | 1 MB | 2 MB | 2 MB (Rev A) | 2 MB | 2 MB |
| SRAM | 384 KB | 128 KB | 384 KB | 384 KB | 384 KB | 384 KB | 640 KB |
| HS USB PHY | Yes (on-chip) | Yes | Yes | Yes | Yes | Yes | Yes (on-chip) |
| Ethernet MAC | GMAC (10/100) with 1588 | GMAC | GMAC | GMAC | GMAC | GMAC | GMAC |
| Hardware Security | AES, TRNG, secure boot | AES, TRNG | AES, TRNG | AES, TRNG, secure boot | AES, TRNG, secure boot | AES, TRNG, secure boot | AES, TRNG, secure boot |
| Operating Temperature | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +125 C |
Principaux différenciateurs
- Highest on-chip SRAM in 144-pin SAM E70 family at this price point (vs ATSAME70Q20B-AN)
- Largest integrated Flash (32 MB vs 16 MB for SAM S70 base) (vs ATSAMS70Q21B-AN)
- On-chip HS USB PHY eliminates external ULPI transceiver cost (vs R7FA6M5AH3CFC)
- DSP and double-precision FPU accelerate motor-control algorithms (vs R7FA6M5AH3CFC)
Notes de conception
Estimated: The ATSAME70Q21B-AN requires two supplies: VDDCORE at 1.2 V (up to ~150 mA in active mode at 300 MHz, plus 1.8 V/3.3 V VDDIO). The reference design recommends a buck converter such as AP63205WU-7 for VDDCORE, plus 100 nF + 4.7 µF X7R ceramic decoupling within 5 mm of every VDDIO/VSS pin pair. The VDDBU backup supply must be present whenever the RTC32K oscillator is used; tie it to VDDIO if RTC is not required.
The 20 x 20 mm LQFP-144 footprint has 0.5 mm pitch and 144 I/O plus multiple power/ground pads - plan a 4-layer PCB with dedicated ground plane. Keep high-speed USB DP/DM traces 90 ohms differential and length-matched within 150 mil. Place the 12 MHz main crystal traces short, symmetric, and guard-traced with ground to minimise clock harmonic radiation into the ADC sampling bandwidth.
Do not attempt to use the ATSAME70Q21A-CNT silicon revision interchangeably with the ATSAME70Q21B-AN 'B' revision in production firmware builds without re-checking errata. Rev B added a fix for USB HS PHY errata and revised power-on reset thresholds. Also, avoid using the backup domain VDDBU when the RTC is unused - tie it to VDDIO through a ferrite bead and local decoupling to prevent leakage and brown-out glitches.
Estimated: At 300 MHz active mode, the ATSAME70Q21B-AN core power is approximately 1.4 W. With a 4-layer PCB and minimum copper pour, theta_JA is ~35 C/W, yielding a 49 C junction temperature rise above ambient. At an industrial-grade +85 C ambient this leaves only 15 C margin to the +105 C operating limit, so route substantial GND copper pours and thermal vias under the exposed die pad pattern to maintain derating headroom.
Informations de conformité
ROHS3 compliant per MicrochipUSA stock data. AEC-Q100 not applicable - for automotive use select -AAB suffix parts. REACH, halogen-free status not in provided data.