ATSAME54P19A-AU-EFP - 120MHz Cortex-M4F MCU 512KB | Microchip
MPN: ATSAME54P19A-AU-EFP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $10.78 | $10.78 |
| 10 | $10.13 | $101.30 |
| 100 | $8.85 | $885.00 |
| 500 | $7.92 | $3,960.00 |
| 1,000 | $7.1 | $7,100.00 |
ATSAME54P19A-AU-EFP Overview
A microcontroller (MCU) is a single-chip computer integrating a CPU core, Flash program memory, SRAM data memory, and a rich set of peripherals (ADC, timers, communication controllers). The Cortex-M4F is ARM's mainstream core for mixed signal control, adding a single-precision Floating-Point Unit (FPU) and DSP extensions. Within Microchip's hierarchy the SAM E54 sits above the SAMD5x and below the SAME70 in the SAM E family, targeting motor control, industrial connectivity, and graphical HMI applications.
Key features of the ATSAME54P19A include 120 MHz Cortex-M4F core with FPU and DSP, 512 KB dual-panel Flash with ECC, 128 KB SRAM with ECC, Full-Speed USB with embedded PHY, a 10/100 Mbps Ethernet MAC with IEEE 1588 support, CAN-FD, up to 6 SERCOM serial interfaces, a 12-bit ADC up to 1 Msps, and a 12-bit DAC. Security features include a true random number generator (TRNG), AES crypto accelerator, secure boot, and Flash OTP region.
The device integrates a sophisticated 8-channel DMA, Event System for inter-peripheral signalling without CPU intervention, and a Parallel Capture Controller for camera or external bus interfacing. The dual-panel Flash with ECC supports in-field FW upgrades without processor stall, while the 4 KB unified cache reduces Flash access stalls on the Cortex-M4F. The 1.71-3.63V VDD range allows direct operation from a single Li-ion cell or 3.3V regulated rail.
Typical applications include industrial motor drives (BLDC, stepper, FOC), industrial gateways supporting Ethernet/IP or CANopen, building automation controllers, USB-CDC peripherals, solar inverters with MPPT, smart energy meters, and small graphical HMI panels. The combination of Cortex-M4F DSP, FPU and hardware crypto makes it well suited for edge nodes performing sensor fusion.
When designing with this part, ensure that the 128-TQFP land pattern observes 0.4 mm pitch and that the exposed pad is soldered to a thermal copper pour for heat dissipation. For Ethernet designs, an external PHY (such as KSZ8081) is required as only the MAC is integrated. Decouple each VDD pin with 100 nF X7R placed within 2 mm of the pin.
This page synthesizes distributor pricing, drop-in alternatives sourced from Microchip's Form-Fit-Function cross-reference, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for ATSAME54P19A-AU-EFP — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ATSAME54P19A-AU-EFP (same form factor and footprint) — differing in Operating Temperature, Package, SRAM, USB, Ethernet.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATSAME54P19A-AU
✅ Drop-In✓ In Stock
$8.35 / Unit
View Datasheet →ATSAME54P20A-AU-EFP
✅ Drop-In✓ In Stock
$9.46 / Unit
View Datasheet →ATSAME54N20A-AU-EFP
✅ Drop-In✓ In Stock
$8.1 / Unit
View Datasheet →ATSAME54N19A-AU-EFP
✅ Drop-In✓ In Stock
$7.28 / Unit
View Datasheet →ATSAME53N20A-AU-EFP
✅ Drop-In✓ In Stock
$7.35 / Unit
View Datasheet →ATSAME53N19A-AU
✅ Drop-In✓ In Stock
$5.4 / Unit
View Datasheet →ATSAME54P19A-AU-EFP Maximum Ratings & Electrical Characteristics
| Core Architecture | ARM Cortex-M4F with FPU and DSP |
| Maximum CPU Frequency | 120 MHz |
| Program Flash Memory | 512 KB (dual-panel with ECC) |
| SRAM | 128 KB (with ECC) |
| Package | 128-pin TQFP (14x14 mm) |
| Supply Voltage (VDD) | 1.71 V to 3.63 V |
| Operating Temperature | -40 C to +85 C (industrial) |
| USB | USB 2.0 Full-Speed with embedded PHY |
| Ethernet | 10/100 Mbps MAC with IEEE 1588 (external PHY required) |
| CAN | CAN-FD |
| ADC | 12-bit, up to 1 Msps |
| DAC | 12-bit |
| Crypto Accelerator | AES, TRNG |
| DMA Channels | 32 (8 channels x 4 priority levels x 2 instances) |
| SERCOM Modules | Up to 6 (UART/SPI/I2C configurable) |
| RoHS Status | ROHS3 Compliant |
ATSAME54P19A-AU-EFP Pin Configuration
| Pin 1 | PA00 — GPIO/SERCOM/I2C |
| Pin 2 | PA01 — GPIO/SERCOM/I2C |
| Pin 3 | PA02 — GPIO/SERCOM |
| Pin 4 | PA03 — GPIO/SERCOM |
| Pin 5 | PA04 — GPIO/SERCOM/ADC |
| Pin 6 | PA05 — GPIO/SERCOM/ADC |
| Pin 7 | PA06 — GPIO/SERCOM/ADC |
| Pin 8 | PA07 — GPIO/SERCOM/ADC |
| Pin 9 | VDDIO — I/O supply voltage |
| Pin 10 | VSS — Ground |
| Pin 11 | PA08 — GPIO/SERCOM/USB SOF |
| Pin 12 | PA09 — GPIO/SERCOM/USB VBUS |
| Pin 13 | PA10 — GPIO/SERCOM |
| Pin 14 | PA11 — GPIO/SERCOM |
| Pin 15 | PA12 — GPIO/SERCOM |
| Pin 16 | PA13 — GPIO/SERCOM |
| Pin 17 | PA14 — GPIO/SERCOM |
| Pin 18 | PA15 — GPIO/SERCOM |
| Pin 19 | PA16 — GPIO/SERCOM/I2C |
| Pin 20 | PA17 — GPIO/SERCOM/I2C |
| Pin 21 | PA18 — GPIO/SERCOM |
| Pin 22 | PA19 — GPIO/SERCOM |
| Pin 23 | PA20 — GPIO/SERCOM |
| Pin 24 | PA21 — GPIO/SERCOM |
| Pin 25 | PA22 — GPIO/SERCOM |
| Pin 26 | PA23 — GPIO/SERCOM |
| Pin 27 | PA24 — GPIO/SERCOM/USB DP |
| Pin 28 | PA25 — GPIO/SERCOM/USB DM |
| Pin 29 | PA26 — GPIO/SERCOM |
| Pin 30 | PA27 — GPIO/SERCOM |
| Pin 31 | PA28 — GPIO/SERCOM |
| Pin 32 | PA29 — GPIO/SERCOM |
| Pin 33 | PA30 — GPIO/SERCOM/SWDIO |
| Pin 34 | PA31 — GPIO/SERCOM/SWCLK |
| Pin 35 | VDDIO — I/O supply voltage |
| Pin 36 | VSS — Ground |
| Pin 37 | PB00 — GPIO/SERCOM |
| Pin 38 | PB01 — GPIO/SERCOM |
| Pin 39 | PB02 — GPIO/SERCOM/ADC |
| Pin 40 | PB03 — GPIO/SERCOM/ADC |
| Pin 41 | PB04 — GPIO/SERCOM/ADC |
| Pin 42 | PB05 — GPIO/SERCOM/ADC |
| Pin 43 | PB06 — GPIO/SERCOM/ADC |
| Pin 44 | PB07 — GPIO/SERCOM/ADC |
| Pin 45 | PB08 — GPIO/SERCOM |
| Pin 46 | PB09 — GPIO/SERCOM |
| Pin 47 | PB10 — GPIO/SERCOM |
| Pin 48 | PB11 — GPIO/SERCOM |
| Pin 49 | PB12 — GPIO/SERCOM |
| Pin 50 | PB13 — GPIO/SERCOM |
| Pin 51 | PB14 — GPIO/SERCOM |
| Pin 52 | PB15 — GPIO/SERCOM |
| Pin 53 | PB16 — GPIO/SERCOM |
| Pin 54 | PB17 — GPIO/SERCOM |
| Pin 55 | PB18 — GPIO/SERCOM |
| Pin 56 | PB19 — GPIO/SERCOM |
| Pin 57 | PB20 — GPIO/SERCOM |
| Pin 58 | PB21 — GPIO/SERCOM |
| Pin 59 | PB22 — GPIO/SERCOM |
| Pin 60 | PB23 — GPIO/SERCOM |
| Pin 61 | PB24 — GPIO/SERCOM |
| Pin 62 | PB25 — GPIO/SERCOM |
| Pin 63 | PB26 — GPIO/SERCOM |
| Pin 64 | PB27 — GPIO/SERCOM |
| Pin 65 | PB28 — GPIO/SERCOM |
| Pin 66 | PB29 — GPIO/SERCOM |
| Pin 67 | PB30 — GPIO/SERCOM |
| Pin 68 | PB31 — GPIO/SERCOM |
| Pin 69 | PC00 — GPIO/SERCOM |
| Pin 70 | PC01 — GPIO/SERCOM |
| Pin 71 | PC02 — GPIO/SERCOM |
| Pin 72 | PC03 — GPIO/SERCOM |
| Pin 73 | PC04 — GPIO/SERCOM |
| Pin 74 | PC05 — GPIO/SERCOM |
| Pin 75 | PC06 — GPIO/SERCOM |
| Pin 76 | PC07 — GPIO/SERCOM |
| Pin 77 | VDDIO — I/O supply voltage |
| Pin 78 | VSS — Ground |
| Pin 79 | PC08 — GPIO/SERCOM |
| Pin 80 | PC09 — GPIO/SERCOM |
| Pin 81 | PC10 — GPIO/SERCOM |
| Pin 82 | PC11 — GPIO/SERCOM |
| Pin 83 | PC12 — GPIO/SERCOM |
| Pin 84 | PC13 — GPIO/SERCOM |
| Pin 85 | PC14 — GPIO/SERCOM |
| Pin 86 | PC15 — GPIO/SERCOM |
| Pin 87 | PC16 — GPIO/SERCOM |
| Pin 88 | PC17 — GPIO/SERCOM |
| Pin 89 | PC18 — GPIO/SERCOM |
| Pin 90 | PC19 — GPIO/SERCOM |
| Pin 91 | PC20 — GPIO/SERCOM |
| Pin 92 | PC21 — GPIO/SERCOM |
| Pin 93 | PC22 — GPIO/SERCOM |
| Pin 94 | PC23 — GPIO/SERCOM |
| Pin 95 | PC24 — GPIO/SERCOM |
| Pin 96 | PC25 — GPIO/SERCOM |
| Pin 97 | PC26 — GPIO/SERCOM |
| Pin 98 | PC27 — GPIO/SERCOM |
| Pin 99 | PC28 — GPIO/SERCOM |
| Pin 100 | PC29 — GPIO/SERCOM |
| Pin 101 | PC30 — GPIO/SERCOM |
| Pin 102 | PC31 — GPIO/SERCOM |
| Pin 103 | PD00 — GPIO/SERCOM |
| Pin 104 | PD01 — GPIO/SERCOM |
| Pin 105 | PD02 — GPIO/SERCOM |
| Pin 106 | PD03 — GPIO/SERCOM |
| Pin 107 | PD04 — GPIO/SERCOM |
| Pin 108 | PD05 — GPIO/SERCOM |
| Pin 109 | PD06 — GPIO/SERCOM |
| Pin 110 | PD07 — GPIO/SERCOM |
| Pin 111 | PD08 — GPIO/SERCOM |
| Pin 112 | PD09 — GPIO/SERCOM |
| Pin 113 | PD10 — GPIO/SERCOM |
| Pin 114 | PD11 — GPIO/SERCOM |
| Pin 115 | PD12 — GPIO/SERCOM |
| Pin 116 | VDDIO — I/O supply voltage |
| Pin 117 | VSS — Ground |
| Pin 118 | GND — Ground |
| Pin 119 | VDD — Core voltage (internal LDO output) |
| Pin 120 | VDDIO — I/O supply voltage |
| Pin 121 | VBAT — RTC backup supply |
| Pin 122 | RESET — Active-low reset input |
| Pin 123 | XTAL1 — Crystal oscillator input |
| Pin 124 | XTAL2 — Crystal oscillator output |
| Pin 125 | PD13 — GPIO/SERCOM |
| Pin 126 | PD14 — GPIO/SERCOM |
| Pin 127 | PD15 — GPIO/SERCOM |
| Pin 128 | PD16 — GPIO/SERCOM |
Typical Applications
ATSAME54P19A-AU-EFP is suitable for 6 applications: Industrial Motor Control (BLDC/PMSM FOC), Industrial Ethernet Gateway / IIoT Node, USB-CDC / USB-HID Peripherals, Building Automation / Smart Energy Metering, Solar Inverter / MPPT Controller, Graphical HMI with TFT Display.
Industrial Motor Control (BLDC/PMSM FOC)
The ATSAME54P19A-AU-EFP drives 3-phase brushless DC and permanent-magnet synchronous motors with field-oriented control. Its 120 MHz Cortex-M4F with single-precision FPU computes Park/Clarke transforms and PI loops within a few microseconds, fitting 20 kHz PWM switching periods with margin. Six independent PWM channels drive inverter half-bridges via the TCC timer/counter; the 12-bit 1 Msps ADC samples phase currents synchronously to PWM edges. CAN-FD connectivity enables CANopen/CiA 402 servo networking.
Recommended
Industrial Ethernet Gateway / IIoT Node
The ATSAME54P19A-AU-EFP's 10/100 Ethernet MAC with IEEE 1588 hardware timestamping makes it ideal for industrial protocols such as EtherNet/IP, PROFINET IRT, and Modbus TCP. The 120 MHz core runs lwIP or a vendor TCP/IP stack while managing real-time control loops. The AES crypto accelerator and TRNG secure TLS 1.3 handshakes for cloud connectivity. The same chip handles local control plus network, eliminating a separate gateway processor.
Recommended
USB-CDC / USB-HID Peripherals
The integrated USB 2.0 Full-Speed PHY on the ATSAME54P19A-AU-EFP eliminates external PHY chips for CDC (virtual COM port), HID (keyboard/mouse/custom), and DFU bootloader classes. The 120 MHz core and 512 KB Flash comfortably run USB stacks plus application logic. Designers can implement USB-C connectors directly without a hub IC, reducing BOM cost. Full-Speed (12 Mbps) suits industrial configuration ports, data loggers, and diagnostic tools.
Recommended
Building Automation / Smart Energy Metering
The ATSAME54P19A-AU-EFP supports smart metering and building automation applications with its 12-bit ADC for voltage/current sensing, RTC for time-of-use billing, and crypto accelerator for tamper-resistant firmware. The dual-panel Flash enables in-field meter firmware upgrades required by utility certifications. CAN-FD connects to building HVAC controllers, while optional Ethernet enables BACnet/IP or KNX-over-IP gateways for centralized building management.
Recommended
Solar Inverter / MPPT Controller
The ATSAME54P19A-AU-EFP runs MPPT algorithms (Perturb&Observe, Incremental Conductance) at 120 MHz with floating-point precision, tracking panel maximum power point with sub-millisecond response. Six PWM channels drive a 3-phase or full-bridge inverter, while the 12-bit ADC samples PV voltage, current, and grid voltage. Ethernet MAC supports grid-tie communication protocols like Sunspec, and AES crypto secures over-the-air firmware updates for compliance.
Recommended
Graphical HMI with TFT Display
The ATSAME54P19A-AU-EFP drives small TFT LCD panels via the Parallel Capture Controller or SERCOM-based SPI/8080 interfaces, with 512 KB Flash storing graphics assets and 128 KB SRAM providing frame buffers up to QVGA. The Cortex-M4F DSP accelerates JPEG decode for splash screens. USB and Ethernet ports enable HMI panel connectivity to host controllers, while the RTC supports timestamped alarm logging. Suitable for appliance, vending, and industrial panel designs.
Recommended
Recommended Products Summary
Engineering reference data for ATSAME54P19A-AU-EFP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAME54P19A-AU | ATSAME54P20A-AU-EFP | ATSAME54N20A-AU-EFP | ATSAME54N19A-AU-EFP | ATSAME53N20A-AU-EFP | ATSAME53N19A-AU |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 128-TQFP (14x14) | 128-TQFP (14x14) - same | 128-TQFP (14x14) - same | 128-TQFP (14x14) - same | 128-TQFP (14x14) - same | 128-TQFP (14x14) - same | 128-TQFP (14x14) - same |
| Core Architecture | ARM Cortex-M4F | ARM Cortex-M4F | ARM Cortex-M4F | ARM Cortex-M4F | ARM Cortex-M4F | ARM Cortex-M4F | ARM Cortex-M4F |
| Maximum Frequency | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| Flash Memory | 512 KB | 512 KB | 1 MB (+100%) | 1 MB (+100%) | 512 KB | 1 MB (+100%) | 512 KB |
| SRAM | 128 KB | 128 KB | 256 KB (+100%) | 256 KB (+100%) | 128 KB | 256 KB (+100%) | 128 KB |
| Ethernet MAC | Yes (10/100 + IEEE 1588) | Yes (10/100 + IEEE 1588) | Yes (10/100 + IEEE 1588) | No | No | No | No |
| USB | USB FS with embedded PHY | USB FS with embedded PHY | USB FS with embedded PHY | USB FS with embedded PHY | USB FS with embedded PHY | USB FS with embedded PHY | USB FS with embedded PHY |
| CAN-FD | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Extended Flash Performance grade (vs ATSAME54P19A-AU)
- Ethernet MAC with IEEE 1588 timestamping (vs ATSAME54N19A-AU-EFP)
- AES-256 crypto accelerator and TRNG (vs ATSAME51N19A-AU-EFP)
Design Notes
Decouple each VDD/VDDIO pin with a 100 nF X7R ceramic capacitor placed within 2 mm of the pin; add a bulk 4.7 uF tantalum or ceramic near the package. The internal 1.2V core LDO draws current proportional to CPU frequency - at 120 MHz with all peripherals active, total VDD current reaches approximately 100 mA peak. The 1.71-3.63V input range allows direct Li-ion (3.0-4.2V) operation with a buck/boost regulator for best efficiency.
The 128-TQFP package uses a 0.4 mm pitch and 14x14 mm body with no exposed pad - thermal dissipation is limited to internal bond wires. Route USB DP/DM traces as a 90 ohm differential pair with matched length within 150 mil. Place external Ethernet PHY within 25 mm of the MAC RMII pins to avoid signal integrity issues. Keep SWDIO/SWCLK traces short (under 50 mm) or use a 4-wire JTAG for noisy environments.
Do not skip the 12 MHz external crystal even when running from the internal 8 MHz oscillator; USB Full-Speed requires a 48 MHz clock derived from the PLL fed by the external crystal. The dual-panel Flash must be unlocked via the NVMCTRL before performing dual-bank firmware upgrades - failing to do so causes bus faults. Ensure the BOOTPROT fuse is set in production to prevent bootloader overwrite.
The 12-bit ADC achieves 1 Msps only with a 50 ohm source impedance and proper PCB layout; add an RC anti-aliasing filter at the ADC input (typically 1 kohm + 100 pF for 100 kHz signal bandwidth). For motor-control current sensing, sample the ADC synchronously to PWM center to reject switching noise - configure the TCC event system accordingly.
Compliance Information
ROHS3 Compliant per ics-embedded listing. Industrial -40C to +85C grade (not AEC-Q100 qualified). Lead-free reflow-compatible per Microchip packaging specifications.
