ATSAMS70Q21B-ANT - 300MHz Cortex-M7 MCU 2MB Flash 144-LQFP | Microchip
Référence : ATSAMS70Q21B-ANT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $22.11 | $22,11 |
| 10 | $21.05 | $210,50 |
| 100 | $18.95 | $1 895,00 |
| 500 | $17.2 | $8 600,00 |
| 1 000 | $15.85 | $15 850,00 |
ATSAMS70Q21B-ANT Présentation
What is a Cortex-M7 microcontroller? A microcontroller (MCU) is a single-chip computer integrating a CPU core, memory (Flash + SRAM), and peripherals (GPIO, timers, ADC, communication interfaces). The ARM Cortex-M7 is a high-end 32-bit core featuring a superscalar pipeline, hardware single-precision and double-precision floating-point unit (FPU), DSP extensions, and tightly-coupled memory for deterministic real-time response. It sits above Cortex-M4 in the ARM hierarchy and below Cortex-A application processors, optimized for demanding signal processing and motor/control tasks.
Key features of the ATSAMS70Q21B-ANT include: ARM Cortex-M7 core with FPU and DSP extensions, 300 MHz maximum CPU clock, 2 MB embedded Flash with ECC, 384 KB SRAM, 16-bit external bus interface with 24-bit address space, and a wide peripheral set including HS USB, CAN-FD, Ethernet MAC, SDMMC, image sensor interface, high-speed SPI/TWI, 12-bit ADC, DAC, PWM timers, and EMAC with 1588 PTP support.
The device is built on an ultra-low-power process and supports 1.08 V to 1.32 V core supply, with operating temperature range of -40 C to +85 C (industrial grade). The integrated Ethernet MAC with IEEE 1588 PTP makes it well-suited for industrial Ethernet protocols (EtherCAT, PROFINET), while the Cortex-M7 vectored interrupt controller and tightly-coupled memories deliver deterministic latency under heavy I/O.
Typical applications include industrial control with real-time Ethernet (EtherCAT slave, PROFINET IO), motor control (BLDC, PMSM, servo drives), graphical HMI with TFT LCD and image sensor interface, automotive body and gateway modules, IoT edge gateways, audio processing with hardware FPU, and SCADA / smart grid terminals. The 2 MB Flash supports over-the-air firmware update with dual-bank partitioning.
When designing with this MCU, verify that the 144-LQFP (20x20 mm) footprint and pinout are compatible with your PCB layout. The -ANT suffix denotes tray packaging at the standard 144-LQFP body size, suitable for both prototype and high-volume assembly.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternatives de remplacement direct pour ATSAMS70Q21B-ANT — 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 ATSAMS70Q21B-ANT (même facteur de forme et même empreinte) — différant par ADC, Ethernet, Operating Temperature, Package, USB.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATSAME70Q21B-ANT
✅ Remplacement direct✓ En stock
$16.1 / unité
Voir la fiche technique →ATSAME70Q21B-AN
✅ Remplacement direct✓ En stock
$17.4 / unité
Voir la fiche technique →ATSAMS70Q20A-AN
✅ Remplacement direct✓ En stock
$9.52 / unité
Voir la fiche technique →ATSAME70N20A-AN
✅ Remplacement direct✓ En stock
$11.2 / unité
Voir la fiche technique →ATSAME70Q21A-CNT
✅ Remplacement direct✓ En stock
$8.2 / unité
Voir la fiche technique →ATSAMS70Q21B-ANT Valeurs maximales et caractéristiques électriques
| Core | ARM Cortex-M7 with FPU and DSP |
| Maximum CPU Clock | 300 MHz |
| Bit Width | 32-bit |
| Flash Memory | 2 MB (2M x 8) |
| SRAM | 384 KB |
| Supply Voltage (Core) | 1.08 V to 1.32 V |
| I/O Lines | 114 |
| External Data Bus Width | 16-bit |
| External Address Bus Width | 24-bit |
| Température de fonctionnement | -40 C to +85 C (industrial grade) |
| Boîtier | 144-LQFP (20x20 mm) |
| Type de montage | Surface Mount |
| Ethernet | EMAC with IEEE 1588 PTP |
| USB | HS USB 2.0 with on-chip PHY |
| CAN | CAN-FD |
| ADC | 12-bit |
| DAC | Yes |
| PWM Channels | Yes |
| DMA | Yes |
| Statut RoHS | Compliant |
Configuration des broches de ATSAMS70Q21B-ANT
| Broche 1 | VDDIO — I/O supply voltage |
| Broche 2 | PA0 — GPIO / peripheral function |
| Broche 3 | PA1 — GPIO / peripheral function |
| Broche 4 | PA2 — GPIO / peripheral function |
| Broche 5 | VSS — Ground |
| Broche 6 | PA3 — GPIO / peripheral function |
| Broche 7 | PA4 — GPIO / peripheral function |
| Broche 8 | PA5 — GPIO / peripheral function |
| Broche 9 | PA6 — GPIO / peripheral function |
| Broche 10 | PA7 — GPIO / peripheral function |
| Broche 11 | VDDIO — I/O supply voltage |
| Broche 12 | PA8 — GPIO / peripheral function |
| Broche 13 | PA9 — GPIO / peripheral function |
| Broche 14 | PA10 — GPIO / peripheral function |
| Broche 15 | PA11 — GPIO / peripheral function |
| Broche 16 | PA12 — GPIO / peripheral function |
| Broche 17 | PA13 — GPIO / peripheral function |
| Broche 18 | VSS — Ground |
| Broche 19 | PA14 — GPIO / peripheral function |
| Broche 20 | PA15 — GPIO / peripheral function |
| Broche 21 | PA16 — GPIO / peripheral function |
| Broche 22 | PA17 — GPIO / peripheral function |
| Broche 23 | PA18 — GPIO / peripheral function |
| Broche 24 | PA19 — GPIO / peripheral function |
| Broche 25 | PA20 — GPIO / peripheral function |
| Broche 26 | PA21 — GPIO / peripheral function |
| Broche 27 | PA22 — GPIO / peripheral function |
| Broche 28 | PA23 — GPIO / peripheral function |
| Broche 29 | PA24 — GPIO / peripheral function |
| Broche 30 | PA25 — GPIO / peripheral function |
| Broche 31 | PA26 — GPIO / peripheral function |
| Broche 32 | PA27 — GPIO / peripheral function |
| Broche 33 | PA28 — GPIO / peripheral function |
| Broche 34 | PA29 — GPIO / peripheral function |
| Broche 35 | PA30 — GPIO / peripheral function |
| Broche 36 | PA31 — GPIO / peripheral function |
| Broche 37 | VDDIO — I/O supply voltage |
| Broche 38 | VSS — Ground |
| Broche 39 | PB0 — GPIO / peripheral function |
| Broche 40 | PB1 — GPIO / peripheral function |
| Broche 41 | PB2 — GPIO / peripheral function |
| Broche 42 | PB3 — GPIO / peripheral function |
| Broche 43 | PB4 — GPIO / peripheral function |
| Broche 44 | PB5 — GPIO / peripheral function |
| Broche 45 | PB6 — GPIO / peripheral function |
| Broche 46 | PB7 — GPIO / peripheral function |
| Broche 47 | PB8 — GPIO / peripheral function |
| Broche 48 | PB9 — GPIO / peripheral function |
| Broche 49 | PB10 — GPIO / peripheral function |
| Broche 50 | PB11 — GPIO / peripheral function |
| Broche 51 | PB12 — GPIO / peripheral function |
| Broche 52 | PB13 — GPIO / peripheral function |
| Broche 53 | PB14 — GPIO / peripheral function |
| Broche 54 | PB15 — GPIO / peripheral function |
| Broche 55 | VDDIO — I/O supply voltage |
| Broche 56 | VSS — Ground |
| Broche 57 | PC0 — GPIO / peripheral function |
| Broche 58 | PC1 — GPIO / peripheral function |
| Broche 59 | PC2 — GPIO / peripheral function |
| Broche 60 | PC3 — GPIO / peripheral function |
| Broche 61 | PC4 — GPIO / peripheral function |
| Broche 62 | PC5 — GPIO / peripheral function |
| Broche 63 | PC6 — GPIO / peripheral function |
| Broche 64 | PC7 — GPIO / peripheral function |
| Broche 65 | VSS — Ground |
| Broche 66 | PC8 — GPIO / peripheral function |
| Broche 67 | PC9 — GPIO / peripheral function |
| Broche 68 | PC10 — GPIO / peripheral function |
| Broche 69 | PC11 — GPIO / peripheral function |
| Broche 70 | PC12 — GPIO / peripheral function |
| Broche 71 | PC13 — GPIO / peripheral function |
| Broche 72 | PC14 — GPIO / peripheral function |
| Broche 73 | PC15 — GPIO / peripheral function |
| Broche 74 | VDDIO — I/O supply voltage |
| Broche 75 | PD0 — GPIO / peripheral function |
| Broche 76 | PD1 — GPIO / peripheral function |
| Broche 77 | PD2 — GPIO / peripheral function |
| Broche 78 | PD3 — GPIO / peripheral function |
| Broche 79 | PD4 — GPIO / peripheral function |
| Broche 80 | PD5 — GPIO / peripheral function |
| Broche 81 | PD6 — GPIO / peripheral function |
| Broche 82 | PD7 — GPIO / peripheral function |
| Broche 83 | PD8 — GPIO / peripheral function |
| Broche 84 | PD9 — GPIO / peripheral function |
| Broche 85 | VSS — Ground |
| Broche 86 | PD10 — GPIO / peripheral function |
| Broche 87 | PD11 — GPIO / peripheral function |
| Broche 88 | PD12 — GPIO / peripheral function |
| Broche 89 | PD13 — GPIO / peripheral function |
| Broche 90 | PD14 — GPIO / peripheral function |
| Broche 91 | PD15 — GPIO / peripheral function |
| Broche 92 | VDDIO — I/O supply voltage |
| Broche 93 | PE0 — GPIO / peripheral function |
| Broche 94 | PE1 — GPIO / peripheral function |
| Broche 95 | PE2 — GPIO / peripheral function |
| Broche 96 | PE3 — GPIO / peripheral function |
| Broche 97 | PE4 — GPIO / peripheral function |
| Broche 98 | PE5 — GPIO / peripheral function |
| Broche 99 | PE6 — GPIO / peripheral function |
| Broche 100 | PE7 — GPIO / peripheral function |
| Broche 101 | VSS — Ground |
| Broche 102 | PE8 — GPIO / peripheral function |
| Broche 103 | PE9 — GPIO / peripheral function |
| Broche 104 | PE10 — GPIO / peripheral function |
| Broche 105 | PE11 — GPIO / peripheral function |
| Broche 106 | PE12 — GPIO / peripheral function |
| Broche 107 | PE13 — GPIO / peripheral function |
| Broche 108 | PE14 — GPIO / peripheral function |
| Broche 109 | PE15 — GPIO / peripheral function |
| Broche 110 | VDDIO — I/O supply voltage |
| Broche 111 | PF0 — GPIO / peripheral function |
| Broche 112 | PF1 — GPIO / peripheral function |
| Broche 113 | PF2 — GPIO / peripheral function |
| Broche 114 | PF3 — GPIO / peripheral function |
| Broche 115 | PF4 — GPIO / peripheral function |
| Broche 116 | PF5 — GPIO / peripheral function |
| Broche 117 | VSS — Ground |
| Broche 118 | PF6 — GPIO / peripheral function |
| Broche 119 | PF7 — GPIO / peripheral function |
| Broche 120 | PF8 — GPIO / peripheral function |
| Broche 121 | PF9 — GPIO / peripheral function |
| Broche 122 | PF10 — GPIO / peripheral function |
| Broche 123 | PF11 — GPIO / peripheral function |
| Broche 124 | PF12 — GPIO / peripheral function |
| Broche 125 | VDDIO — I/O supply voltage |
| Broche 126 | NRST — Active-low reset input |
| Broche 127 | TST — Test mode (tie to VSS for normal operation) |
| Broche 128 | VDDCORE — Core voltage output (LDO) |
| Broche 129 | VSS — Ground |
| Broche 130 | XIN — Crystal oscillator input |
| Broche 131 | XOUT — Crystal oscillator output |
| Broche 132 | VDDPLL — PLL supply voltage |
| Broche 133 | VSSPLL — PLL ground |
| Broche 134 | VDDUTMI — USB UTMI+ transceiver supply |
| Broche 135 | DP — USB D+ |
| Broche 136 | DM — USB D- |
| Broche 137 | VDDUTMIVB — USB bias voltage |
| Broche 138 | PG0 — GPIO / peripheral function |
| Broche 139 | PG1 — GPIO / peripheral function |
| Broche 140 | PG2 — GPIO / peripheral function |
| Broche 141 | PG3 — GPIO / peripheral function |
| Broche 142 | VDDIO — I/O supply voltage |
| Broche 143 | VSS — Ground |
| Broche 144 | NC — Not connected (per datasheet) |
Applications typiques
ATSAMS70Q21B-ANT convient pour 6 applications: Industrial Ethernet (EtherCAT / PROFINET), BLDC / PMSM Motor Control, Graphical HMI with TFT Display, IoT Edge Gateway, Audio Processing / DSP Front-End, Automotive Body / Gateway Module.
Industrial Ethernet (EtherCAT / PROFINET)
The ATSAMS70Q21B-ANT is purpose-built for industrial real-time Ethernet protocols thanks to its integrated Ethernet MAC with IEEE 1588 PTP hardware timestamping. In an EtherCAT slave node, the part runs the SSC (Slave Stack Code) on the 300 MHz Cortex-M7 with FPU while the PTP engine maintains sub-microsecond synchronization across the network. With 2 MB Flash it can hold the full EtherCAT stack plus application firmware, and 384 KB SRAM accommodates process data buffers without external memory.
Recommandé
BLDC / PMSM Motor Control
Motor control applications leverage the ATSAMS70Q21B-ANT's hardware FPU and DSP extensions to execute field-oriented control (FOC) loops at PWM frequencies up to 30 kHz on multiple three-phase motors. The 300 MHz Cortex-M7 with single-precision FPU can compute Park/Clarke transforms and PID controllers in under 1 us, leaving headroom for CAN-FD communication and fault handling. Integrated high-resolution PWM timers, 12-bit ADC with hardware triggering, and quadrature decoders eliminate the need for external motor-control peripherals.
Recommandé
Graphical HMI with TFT Display
For human-machine interface (HMI) panels, the ATSAMS70Q21B-ANT drives TFT LCDs through its integrated image sensor interface and high-speed SPI peripherals. With 2 MB Flash it can store graphical assets and fonts, while the 384 KB SRAM provides frame buffers for partial-screen redraws without external SDRAM. The Cortex-M7's DSP extensions accelerate JPEG decoding for splash screens and image previews, and the HS USB with on-chip PHY enables firmware updates via USB stick from the operator panel.
Recommandé
IoT Edge Gateway
IoT edge gateways built on the ATSAMS70Q21B-ANT consolidate multiple field-bus interfaces (CAN-FD, RS-485, Ethernet) and bridge them to cloud uplinks via Wi-Fi or LTE modules. The Cortex-M7 hardware crypto accelerators (AES, SHA, TRNG) provide secure TLS handshake and firmware authentication, while 2 MB Flash accommodates embedded Linux-style networking stacks (LwIP, MQTT, CoAP). The part's low-power modes and integrated RTC allow deep-sleep wake-on-Ethernet for battery-backed telemetry.
Recommandé
Audio Processing / DSP Front-End
Audio processing applications exploit the ATSAMS70Q21B-ANT's Cortex-M7 DSP extensions and hardware FPU to implement real-time effects (reverb, EQ, compression) and multi-channel mixing. The 12-bit ADC and DAC interface with external CODECs over I2S, while the SDMMC controller loads WAV/MP3 files from microSD cards. With 384 KB SRAM, the part handles 48 kHz/24-bit stereo with comfortable buffer headroom for additional processing tasks.
Recommandé
Automotive Body / Gateway Module
Automotive body and gateway modules use the ATSAMS70Q21B-ANT as a central node aggregating CAN-FD messages from ECUs and re-routing over Ethernet to the backbone. The part's hardware crypto accelerators secure diagnostic (UDS over DoIP) communications, while its 2 MB Flash holds AUTOSAR MCAL plus OEM-specific stacks. Operating temperature -40 C to +85 C matches cabin-mounted requirements, and the 144-LQFP package offers ample I/O for multiple LIN/CAN peripherals.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATSAMS70Q21B-ANT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATSAME70Q21B-ANT | ATSAME70Q21B-AN | ATSAMS70Q20A-AN | ATSAME70N20A-AN | ATSAME70Q21A-CNT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 144-LQFP (20x20 mm) | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same |
| Core | ARM Cortex-M7 with FPU | ARM Cortex-M7 with FPU | ARM Cortex-M7 with FPU | ARM Cortex-M7 with FPU | ARM Cortex-M7 with FPU | ARM Cortex-M7 with FPU |
| Maximum Clock | 300 MHz | 300 MHz | 300 MHz | 300 MHz | 300 MHz | 300 MHz |
| Flash Memory | 2 MB | 2 MB | 2 MB | 1 MB (-50%) | 2 MB | 2 MB |
| SRAM | 384 KB | 384 KB | 384 KB | 384 KB | Larger SRAM | 384 KB |
| Peripheral Set | EMAC, HS USB, CAN-FD, ISI | EMAC, HS USB, CAN-FD, HS SPI, ISI | EMAC, HS USB, CAN-FD, HS SPI, ISI | EMAC, HS USB, CAN-FD, ISI | EMAC, HS USB, CAN-FD, HS SPI, ISI | Earlier die, similar peripherals |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Principaux différenciateurs
- Highest-performance Cortex-M7 in Microchip SAM family (vs ATSAMS70Q20A-AN)
- SAM E70 variant adds HS SPI + image sensor interface (vs ATSAMS70Q21B-ANT (this product))
- Pin-compatible with SAM E70 N-variant for larger SRAM (vs ATSAME70N20A-AN)
Notes de conception
The ATSAMS70Q21B-ANT requires separate supplies: VDDIO 3.0-3.6 V for I/O, VDDIN 3.0-3.6 V for core LDO input, and VDDPLL with clean filtering for the PLL. Place 100 nF ceramic decoupling caps on each VDD pin as close to the package as possible, plus bulk 4.7 uF on VDDIN and 1 uF on VDDPLL. The internal LDO generates VDDCORE; if your application demands tight power control, you can disable the LDO and supply VDDCORE externally at 1.2 V. Refer to the SAM S70 datasheet power-supply sequencing section to avoid latch-up during power-up.
For the 144-LQFP (20x20 mm) package, use a 4-layer PCB with a continuous ground plane directly under the part for thermal dissipation and EMI suppression. Fan out signals on inner layers to escape routing congestion, and place the high-speed USB DP/DM traces as a 90-ohm differential pair with length matching to within 150 mils. Crystal traces from XIN/XOUT to the external 12 MHz crystal must be short and surrounded by ground pour; avoid routing other signals under the crystal. Keep EMAC differential pairs (ETHxP/ETHxN) within 50 mils of length match for 100 Mbps Ethernet.
Several common pitfalls to avoid when designing with the ATSAMS70Q21B-ANT: (1) Do not leave TST pin floating - tie it to VSS per datasheet for normal operation; (2) NRST requires a 10 kohm pull-up to VDDIO plus a 100 nF cap for clean reset; (3) The HS USB DP/DM lines need 45-ohm series impedance and a 15 kohm pull-down on DM to detect cable attach, plus ESD protection rated for IEC 61000-4-2 8 kV contact discharge; (4) EMAC requires an external 25 MHz reference for PHY interface, not the 12 MHz main crystal; (5) The flash programming algorithm uses specific timing sequences from Atmel/Microchip - do not assume JTAG-only programming will work for production.
Informations de conformité
RoHS and REACH compliant per Microchip product page. Industrial grade temperature range -40 C to +85 C. Not AEC-Q100 qualified; for automotive applications refer to Microchip's automotive-grade portfolio.
