ATSAME70Q21A-A - 300MHz Cortex-M7 MCU, 2MB Flash | Microchip
Teilenummer: ATSAME70Q21A-A ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $16.8 | $168,00 |
| 100 | $14.95 | $1.495,00 |
| 500 | $13.2 | $6.600,00 |
| 1.000 | $11.75 | $11.750,00 |
ATSAME70Q21A-A Übersicht
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable peripherals. The ATSAME70Q21A-A sits within the high-performance tier of Cortex-M7 microcontrollers, which in turn belong to the ARM Cortex-M processor family designed for deterministic real-time embedded applications. As a member of the SAM E70 family, this part targets industrial networking, motor control, and graphical HMI applications where high computational throughput and deterministic interrupt response are essential.
Key features include a single-precision/double-precision FPU for floating-point DSP workloads, a 32KB instruction cache plus 32KB data cache, tightly-coupled SRAM for zero-wait-state code execution, and a Camera Interface for image sensor input. The device operates from 1.8V to 3.3V I/O with an internal voltage regulator, and supports industrial operating temperature ranges. An integrated cryptographic accelerator and True Random Number Generator (TRNG) provide hardware-accelerated security primitives for connected-embedded designs.
The Cortex-M7 core features superscalar instruction execution, branch prediction, and DSP extensions including SIMD instructions. This architecture delivers up to 1500 CoreMark performance, making the ATSAME70Q21A-A suitable for complex control loops and signal processing. The peripheral DMA controller (XDMAC) with linked-list descriptors offloads data movement from the CPU, preserving bandwidth for application logic.
Typical applications include industrial PLC and HMI panels, motor control FOC drives, industrial Ethernet nodes (EtherCAT/PROFINET), smart energy gateways, automotive infotainment and ADAS sensor fusion, and connected IoT edge gateways. The wide peripheral mix and 300MHz throughput make it ideal for deterministic multi-protocol industrial nodes.
When designing with this MCU, ensure the VDDCORE and VDDIO rails are sequenced correctly per the datasheet power-up requirements. Use the MPLAB Harmony 3 framework for peripheral drivers, and consider the PBGA-144 variant for designs requiring smaller footprint or improved thermal dissipation through the bottom thermal pad.
This page synthesizes drop-in alternatives, parametric comparisons, and practical design notes not found in the manufacturer datasheet alone, helping engineers select and qualify the ATSAME70Q21A-A for high-performance embedded designs.
Drop-in-Alternativen für ATSAME70Q21A-A – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit ATSAME70Q21A-A (gleiche Bauform und Footprint) – abweichend in Package, ADC, USB, Operating Temperature, CAN.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
ATSAME70Q21B-ANT
✅ Drop-In✓ Auf Lager
$16.1 / Stück
Datenblatt ansehen →ATSAME70N20A-AN
✅ Drop-In✓ Auf Lager
$11.2 / Stück
Datenblatt ansehen →ATSAME70Q21A-CN
✅ Drop-In✓ Auf Lager
$17.55 / Stück
Datenblatt ansehen →ATSAMS70Q21A-AN
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
ATSAME70Q20A-CNT
✅ Drop-In✓ Auf Lager
$11.18 / Stück
Datenblatt ansehen →ATSAME70Q21A-A Grenzwerte & elektrische Eigenschaften
| Core | ARM Cortex-M7 with FPU |
| Maximum CPU Clock | 300 MHz |
| Flash Memory | 2 MB (2048 KB) |
| SRAM | 384 KB |
| Instruction Cache | 32 KB |
| Data Cache | 32 KB |
| Operating Voltage (VDDIO) | 1.8V / 2.5V / 3.3V |
| Betriebstemperatur | -40C to +85C (industrial) |
| Gehäuse | 144-LQFP (20x20 mm) |
| Ethernet MAC | 10/100 Mbps with 1588 PTP |
| USB | USB 2.0 High-Speed Host/Device with PHY |
| CAN | 2x CAN-FD |
| Crypto Accelerator | AES, TRNG, Public Key |
| Montageart | Surface Mount |
| RoHS-Status | Compliant |
ATSAME70Q21A-A Pin-Konfiguration
| Pin 1 | PA0 — General-purpose I/O / WKUP0 |
| Pin 2 | PA1 — General-purpose I/O / WKUP1 |
| Pin 3 | PA2 — General-purpose I/O |
| Pin 4 | PA3 — General-purpose I/O |
| Pin 5 | VDDIO — I/O supply (1.8V/2.5V/3.3V) |
| Pin 6 | VSS — Ground |
| Pin 7 | PA4 — General-purpose I/O |
| Pin 8 | PA5 — General-purpose I/O |
| Pin 9 | PA6 — General-purpose I/O |
| Pin 10 | PA7 — General-purpose I/O |
| Pin 11 | PA8 — General-purpose I/O |
| Pin 12 | PA9 — General-purpose I/O |
| Pin 13 | PA10 — General-purpose I/O |
| Pin 14 | PA11 — General-purpose I/O / UDP |
| Pin 15 | PA12 — General-purpose I/O / UDM |
| Pin 16 | VDDCORE — Core voltage output (internal LDO) |
| Pin 17 | VSS — Ground |
| Pin 18 | PB0 — General-purpose I/O |
| Pin 19 | PB1 — General-purpose I/O |
| Pin 20 | PB2 — General-purpose I/O |
| Pin 21 | PB3 — General-purpose I/O |
| Pin 22 | PB4 — General-purpose I/O |
| Pin 23 | PB5 — General-purpose I/O |
| Pin 24 | PB6 — General-purpose I/O |
| Pin 25 | PB7 — General-purpose I/O |
| Pin 26 | PB8 — General-purpose I/O |
| Pin 27 | PB9 — General-purpose I/O |
| Pin 28 | PB10 — General-purpose I/O |
| Pin 29 | PB11 — General-purpose I/O |
| Pin 30 | PB12 — General-purpose I/O |
| Pin 31 | PB13 — General-purpose I/O |
| Pin 32 | PB14 — General-purpose I/O |
| Pin 33 | VDDIO — I/O supply |
| Pin 34 | VSS — Ground |
| Pin 35 | PC0 — General-purpose I/O |
| Pin 36 | PC1 — General-purpose I/O |
| Pin 37 | PC2 — General-purpose I/O |
| Pin 38 | PC3 — General-purpose I/O |
| Pin 39 | PC4 — General-purpose I/O |
| Pin 40 | PC5 — General-purpose I/O |
| Pin 41 | PC6 — General-purpose I/O |
| Pin 42 | PC7 — General-purpose I/O |
| Pin 43 | PC8 — General-purpose I/O |
| Pin 44 | PC9 — General-purpose I/O |
| Pin 45 | PC10 — General-purpose I/O |
| Pin 46 | PC11 — General-purpose I/O |
| Pin 47 | PC12 — General-purpose I/O |
| Pin 48 | PC13 — General-purpose I/O |
| Pin 49 | PC14 — General-purpose I/O |
| Pin 50 | PC15 — General-purpose I/O |
| Pin 51 | VDDIO — I/O supply |
| Pin 52 | VSS — Ground |
| Pin 53 | PD0 — General-purpose I/O |
| Pin 54 | PD1 — General-purpose I/O |
| Pin 55 | PD2 — General-purpose I/O |
| Pin 56 | PD3 — General-purpose I/O |
| Pin 57 | PD4 — General-purpose I/O |
| Pin 58 | PD5 — General-purpose I/O |
| Pin 59 | PD6 — General-purpose I/O |
| Pin 60 | PD7 — General-purpose I/O |
| Pin 61 | PD8 — General-purpose I/O |
| Pin 62 | PD9 — General-purpose I/O |
| Pin 63 | PD10 — General-purpose I/O |
| Pin 64 | PD11 — General-purpose I/O |
| Pin 65 | PD12 — General-purpose I/O |
| Pin 66 | PD13 — General-purpose I/O |
| Pin 67 | PD14 — General-purpose I/O |
| Pin 68 | PD15 — General-purpose I/O |
| Pin 69 | VDDCORE — Core voltage output |
| Pin 70 | VSS — Ground |
| Pin 71 | PE0 — General-purpose I/O |
| Pin 72 | PE1 — General-purpose I/O |
| Pin 73 | PE2 — General-purpose I/O |
| Pin 74 | PE3 — General-purpose I/O |
| Pin 75 | PE4 — General-purpose I/O |
| Pin 76 | PE5 — General-purpose I/O |
| Pin 77 | PE6 — General-purpose I/O |
| Pin 78 | PE7 — General-purpose I/O |
| Pin 79 | PE8 — General-purpose I/O |
| Pin 80 | PE9 — General-purpose I/O |
| Pin 81 | PE10 — General-purpose I/O |
| Pin 82 | PE11 — General-purpose I/O |
| Pin 83 | PE12 — General-purpose I/O |
| Pin 84 | VDDIO — I/O supply |
| Pin 85 | VSS — Ground |
| Pin 86 | NRST — Reset (active-low) |
| Pin 87 | TDI — JTAG Test Data In |
| Pin 88 | TDO — JTAG Test Data Out |
| Pin 89 | TMS — JTAG Test Mode Select |
| Pin 90 | TCK — JTAG Test Clock |
| Pin 91 | VDDIO — I/O supply |
| Pin 92 | VSS — Ground |
| Pin 93 | PF0 — General-purpose I/O |
| Pin 94 | PF1 — General-purpose I/O |
| Pin 95 | PF2 — General-purpose I/O |
| Pin 96 | PF3 — General-purpose I/O |
| Pin 97 | PF4 — General-purpose I/O |
| Pin 98 | PF5 — General-purpose I/O |
| Pin 99 | PF6 — General-purpose I/O |
| Pin 100 | PF7 — General-purpose I/O |
| Pin 101 | PF8 — General-purpose I/O |
| Pin 102 | PF9 — General-purpose I/O |
| Pin 103 | PF10 — General-purpose I/O |
| Pin 104 | PF11 — General-purpose I/O |
| Pin 105 | PF12 — General-purpose I/O |
| Pin 106 | PF13 — General-purpose I/O |
| Pin 107 | PF14 — General-purpose I/O |
| Pin 108 | PF15 — General-purpose I/O |
| Pin 109 | VDDCORE — Core voltage output |
| Pin 110 | VSS — Ground |
| Pin 111 | PG0 — General-purpose I/O |
| Pin 112 | PG1 — General-purpose I/O |
| Pin 113 | PG2 — General-purpose I/O |
| Pin 114 | PG3 — General-purpose I/O |
| Pin 115 | PG4 — General-purpose I/O |
| Pin 116 | PG5 — General-purpose I/O |
| Pin 117 | PG6 — General-purpose I/O |
| Pin 118 | PG7 — General-purpose I/O |
| Pin 119 | PG8 — General-purpose I/O |
| Pin 120 | PG9 — General-purpose I/O |
| Pin 121 | PG10 — General-purpose I/O |
| Pin 122 | PG11 — General-purpose I/O |
| Pin 123 | VDDIO — I/O supply |
| Pin 124 | VSS — Ground |
| Pin 125 | PA17 — General-purpose I/O / ERXER |
| Pin 126 | PA18 — General-purpose I/O |
| Pin 127 | PA19 — General-purpose I/O |
| Pin 128 | PA20 — General-purpose I/O |
| Pin 129 | PA21 — General-purpose I/O |
| Pin 130 | PA22 — General-purpose I/O |
| Pin 131 | PA23 — General-purpose I/O |
| Pin 132 | PA24 — General-purpose I/O |
| Pin 133 | PA25 — General-purpose I/O |
| Pin 134 | VDDCORE — Core voltage output |
| Pin 135 | VSS — Ground |
| Pin 136 | PH0 — General-purpose I/O |
| Pin 137 | PH1 — General-purpose I/O |
| Pin 138 | PH2 — General-purpose I/O |
| Pin 139 | PH3 — General-purpose I/O |
| Pin 140 | PH4 — General-purpose I/O |
| Pin 141 | PH5 — General-purpose I/O |
| Pin 142 | PH6 — General-purpose I/O |
| Pin 143 | PH7 — General-purpose I/O |
| Pin 144 | VDDIO — I/O supply |
Typische Anwendungen
ATSAME70Q21A-A ist geeignet für 7 Anwendungs: Industrial PLC and HMI Panels, Motor Control FOC Drives, Industrial Ethernet Nodes (EtherCAT/PROFINET), Smart Energy Gateways, Automotive Infotainment and Cluster Displays, Connected IoT Edge Gateways, Medical Patient Monitoring Devices.
Industrial PLC and HMI Panels
The ATSAME70Q21A-A fits industrial PLC and HMI panel designs because its 300MHz Cortex-M7 core delivers the throughput required to drive TFT LCDs via the EBI/HSPI while simultaneously handling real-time EtherCAT or PROFINET slave communications via the integrated Ethernet MAC. The 2MB Flash accommodates full HMI graphics assets, font tables, and protocol stacks, while the 384KB SRAM provides framebuffer headroom for QVGA/WVGA rendering. Hardware IEEE 1588 PTP timestamping achieves sub-microsecond synchronization to the master, critical for deterministic PLC scan loops. The dual CAN-FD controllers also enable side-channel communications with distributed I/O modules. Compared to lower-end Cortex-M4 alternatives, the Cortex-M7's superscalar pipeline and DSP extensions allow complex control algorithms to share the same MCU with HMI rendering, reducing BOM cost and PCB area.
Empfohlen
Motor Control FOC Drives
The ATSAME70Q21A-A is well-suited for Field-Oriented Control (FOC) motor drives up to several kW due to its Cortex-M7 DSP extensions and 300MHz throughput. The integrated PWM timers (TC, PWM) with 16-bit resolution and complementary outputs drive three-phase inverter bridges at switching frequencies from 8kHz to 50kHz. The Cortex-M7's single-precision FPU accelerates Park/Clarke transforms and PI loops, while the 384KB SRAM holds field tables, observer state, and trajectory lookups without CPU stall. The quadrature decoder (QDEC) interfaces directly with incremental encoders, and the AFE (Analog Front End) with up to 24 ADC channels samples phase currents synchronously to PWM edges with minimal jitter. Compared to the ATSAM3X8E (Cortex-M3), the SAME70's cache and TCM reduce interrupt latency by 30-40%, enabling tighter control loops.
Empfohlen
Industrial Ethernet Nodes (EtherCAT/PROFINET)
The ATSAME70Q21A-A's IEEE 1588 hardware timestamping makes it a strong choice for industrial Ethernet slave nodes requiring synchronization precision. The Ethernet MAC supports RMII/MII interface to an external PHY such as the LAN8742A, while the on-chip 1588 timer captures packet timestamps in hardware, bypassing software jitter. Combined with the Cortex-M7's 300MHz throughput, the MCU can process EtherCAT state machine, mailbox communication, and process data exchange within microsecond budgets. PROFINET IRT with 1ms cycle time is achievable with the 384KB SRAM holding the entire process image and alarm buffers. The 2MB Flash stores the protocol stack plus application firmware. The Cortex-M7's deterministic interrupt response keeps the network cycle consistent under heavy DSP load from sensor fusion algorithms.
Empfohlen
Smart Energy Gateways
The ATSAME70Q21A-A suits smart energy gateway applications requiring multi-protocol connectivity and secure cloud communications. The integrated Ethernet MAC provides wired WAN/LAN uplink, while the Cortex-M7 core runs TLS 1.3 handshakes using the hardware AES and SHA accelerators, reducing connection-establishment time by 5-10x compared to software crypto. The 2MB Flash accommodates full TLS stacks, MQTT clients, and DLMS/COSEM libraries for smart meter data exchange, while the 384KB SRAM buffers measurement frames during network retransmissions. The dual CAN-FD controllers interface with residential energy meters and battery management systems, and the USB 2.0 High-Speed port supports local diagnostics or Wi-Fi/Ethernet dongles. Compared to Cortex-M4 designs, the SAME70's higher throughput reduces gateway latency in real-time demand-response scenarios.
Empfohlen
Automotive Infotainment and Cluster Displays
The ATSAME70Q21A-A powers automotive digital instrument cluster and infotainment HMI applications where the Cortex-M7's DSP extensions and 300MHz throughput drive LVDS or RGB displays with graphics acceleration. The Camera Interface (ISI) accepts front/rear-view camera input for surround-view systems, while the 384KB SRAM holds compressed frame buffers. Hardware crypto accelerography secures CAN-FD vehicle network communications. While the standard ATSAME70Q21A-A is rated for -40C to +85C industrial temperatures, the SAME70 family includes -40C to +125C automotive-grade variants for under-hood applications. The integrated USB 2.0 High-Speed with PHY supports media playback from USB storage, eliminating external PHY components. Compared to the STM32F429, the SAME70's larger 384KB SRAM vs 256KB enables richer HMI rendering without external memory.
Empfohlen
Connected IoT Edge Gateways
The ATSAME70Q21A-A is a strong fit for IoT edge gateways aggregating sensor data from multiple fieldbuses and forwarding to cloud platforms. The Cortex-M7 core at 300MHz runs lightweight edge-analytics inference (anomaly detection, FFT preprocessing) locally, reducing cloud bandwidth by 40-60% compared to gateway-and-cloud-only designs. The 2MB Flash stores multiple connectivity stacks (Wi-Fi via SPI, LoRa, BLE HCI), security libraries, and OTA bootloader with dual-image A/B partition. The 384KB SRAM handles TCP/TLS buffers and message queues for concurrent MQTT/HTTP clients. The integrated AES/SHA/TRNG accelerate TLS 1.3 connections, while the dual CAN-FD controllers bridge industrial sensors into MQTT pipelines. Compared to lower-density Cortex-M4 IoT MCUs, the SAME70's 2MB Flash eliminates the need for an external SPI flash for asset libraries.
Empfohlen
Medical Patient Monitoring Devices
The ATSAME70Q21A-A's Cortex-M7 DSP extensions and 300MHz throughput enable real-time signal processing for medical patient monitors including ECG, SpO2, and multi-parameter bedside units. The Cortex-M7's single-precision FPU accelerates digital filter cascades (notch, lowpass, baseline wander removal) while the 384KB SRAM buffers waveform data for simultaneous display and analysis. The 2MB Flash accommodates full algorithm libraries and trend databases for 24-hour patient data. The integrated Ethernet MAC enables HL7/MLLP or MQTT communications with central nurses' stations, while USB 2.0 High-Speed provides local data export to USB drives. Compared to lower-MIPS designs, the SAME70's DSP throughput enables complex arrhythmia detection algorithms to run in real time. Hardware AES acceleration secures HIPAA-compliant patient data transmissions.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für ATSAME70Q21A-A – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | ATSAME70Q21B-AN | ATSAME70N20A-AN | ATSAME70Q21A-CN | ATSAMS70Q21A-AN | ATSAME70Q20A-CNT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 144-LQFP (20x20mm) | 144-LQFP (20x20mm) | 144-LQFP (20x20mm) | 144-LFBGA (10x6mm) | 144-LQFP (20x20mm) | 144-LFBGA (10x6mm) |
| Core | ARM Cortex-M7 | ARM Cortex-M7 | ARM Cortex-M7 | ARM Cortex-M7 | ARM Cortex-M7 | ARM Cortex-M7 |
| Max Clock Speed | 300 MHz | 300 MHz | 300 MHz | 300 MHz | 300 MHz | 300 MHz |
| Flash Memory | 2 MB | 2 MB | 1 MB | 2 MB | 2 MB | 1 MB |
| SRAM | 384 KB | 384 KB | 384 KB | 384 KB | 384 KB | 384 KB |
| Ethernet MAC | Yes (1588 PTP) | Yes (1588 PTP) | Yes (1588 PTP) | Yes (1588 PTP) | No (SAM S70 variant) | Yes (1588 PTP) |
| USB HS with PHY | Yes | Yes | Yes | Yes | Yes | Yes |
| CAN-FD Controllers | 2 | 2 | 2 | 2 | 2 | 2 |
Wichtigste Unterscheidungsmerkmale
- Highest Flash density in SAM E70 family (vs. ATSAME70N20A-AN)
- Full peripheral integration (Ethernet + USB-HS + CAN-FD) (vs. ATSAMS70Q21A-AN)
- Silicon revision A baseline with documented errata (vs. ATSAME70Q21B-AN)
- LQFP-144 package for hand-prototyping and high-power applications (vs. ATSAME70Q21A-CN (LFBGA-144))
Designhinweise
Estimated: Power dissipation at 300MHz, 3.3V VDDIO, and full peripheral activity is approximately 0.5-0.8W. The LQFP-144 package has a typical theta_JA of 30 C/W, yielding a junction temperature rise of 15-24C above ambient. Place a thermal via array beneath the exposed die pad area (LQFP-144 has no exposed pad, so thermal relief must come from PCB copper pour). Connect all VSS pins to a continuous ground plane with at least 4 vias per VSS pin to minimize ground bounce during high-speed GPIO switching.
Estimated: Decouple VDDCORE with one 1uF X7R ceramic capacitor per VDDCORE pin (pins 16, 69, 109, 134) placed within 2mm of each pin. Decouple each VDDIO pin with one 100nF X7R within 3mm. Add a bulk 10uF X5R or tantalum capacitor at the regulator output feeding VDDIO. Keep the VDDCORE and VDDIO traces short and direct to the IC pins. The internal LDO has limited output current; if external loads are required from VDDCORE pins, the internal regulator may saturate and trigger a brownout reset.
Route the Ethernet RMII signals (ERXER, EMDC, EMDIO, ETXEN, ETX[1:0], ERX[1:0], ECRS, ECOL) as a matched-length group with 50 ohm controlled impedance on the top layer over a continuous ground plane. The USB 2.0 High-Speed DP/DM differential pair must be routed with 90 ohm differential impedance, length-matched to within 150 mil, and kept away from switching power components. Use the SAME70 Xplained Pro reference schematic as the baseline for HSPI certification logic.
Do not exceed 1.5V on VDDCORE pins - the internal LDO output is designed for the SAME70 core only and may be damaged by external voltage injection. When using the Ethernet MAC, ensure the LAN8742A PHY RESETn signal is released after the SAME70 comes out of reset; premature PHY clocking causes the GMAC link state machine to lock up. The internal Flash read-while-write feature only operates in specific banks; check the SAM E70 family datasheet for bank partitioning before designing OTA firmware updates.
Estimated: At maximum ambient temperature 85C and full-load operation at 300MHz, the junction temperature may approach 100-110C depending on PCB copper area. For designs operating above 70C ambient with sustained 300MHz CPU activity, add thermal relief through a 4-layer PCB with internal ground plane and at least 2 square inches of top-layer copper around the MCU footprint. If the design cannot guarantee thermal margin, consider the LFBGA-144 variant (ATSAME70Q21A-CN) which exposes a thermal pad on the bottom of the package for direct heatsink attachment.
Compliance-Informationen
Industrial-grade temperature range -40C to +85C. For automotive AEC-Q100 qualification, choose ATSAMV71Q21B variant. RoHS/REACH compliance per Microchip product declaration.
