ATSAMG55J19A-AU vs ATSAMG55J19B-AUT Comparison
Detailed side-by-side comparison of ATSAMG55J19A-AU by Microchip Technology and ATSAMG55J19B-AUT by Microchip Technology. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Microchip Technology
ATSAMG55J19A-AU - 120MHz Cortex-M4 MCU 512KB Flash | Microchip
ATSAMG55J19A-AU β ActiveMicrochip Technology
ATSAMG55J19B-AUT - ARM Cortex-M4 MCU 120MHz 512KB LQFP-64
ATSAMG55J19B-AUT β ActiveSpecification Comparison
| Parameter | ATSAMG55J19A-AU | ATSAMG55J19B-AUT |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $3.99 | $5.42 |
| Core Architecture | ARM Cortex-M4 with FPU | ARM Cortex-M4 with single-precision FPU |
| Core Clock Speed (max) | 120 MHz | β |
| Instruction Set | 32-bit RISC + DSP extensions + FPU (single-precision) | β |
| Program Flash Memory | 512 KB (512K x 8) | β |
| SRAM (Total) | 160 KB | β |
| Backup SRAM with Retention | 16 KB (retained in deep sleep) | β |
| Supply Voltage (VDDIO/VDDCORE) | 1.62 V to 3.6 V | β |
| Operating Temperature | -40 C to +85 C (industrial) | β |
| Package | 64-LQFP (10x10 mm) | 64-pin LQFP (10x10 mm) |
| Audio Interface | I2S with PDM/TDM and sample-rate converter | I2S (digital audio) |
| USB | USB 2.0 Full-Speed device/host | β |
| ADC | 12-bit SAR | 12-bit, 16-channel (per datasheet) |
| Communication Peripherals | USART/UART, SPI, TWI (I2C), I2S, HS USB | USART, SPI, TWI/I2C |
| External Bus Interface (EBI) | Yes (for SRAM/SDRAM/NOR Flash expansion) | β |
| Active Power Consumption | Down to 100 uA/MHz | β |
| Deep Sleep Current | Below 7 uA with SRAM retention | β |
| Wake-up Time (deep sleep to first instruction) | Down to 3 us | β |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | Compliant | Compliant |
| Lifecycle / New Design Recommendation | Active (new designs: consider ATSAMG55J19B Revision B) | β |
| Maximum Clock Frequency | β | 120 MHz |
| Program Memory (Flash) | β | 512 KB (512K x 8) |
| SRAM | β | 176 KB |
| Operating Voltage Range | β | 1.62 V to 3.6 V |
| Operating Temperature Range | β | -40C to +85C (Industrial) |
| Data Bus Width | β | 32-bit |
| Number of I/O Pins | β | Up to 47 (per datasheet) |
| USB Interface | β | USB 2.0 Full-Speed Device/Host with on-chip PHY |
| Timers/PWM | β | 16-bit timers, PWM channels (per datasheet) |
| DMA | β | Peripheral DMA controller |
| Delivery Form | β | Tape & Reel (AUT suffix) |
| Series | β | SAM G55 |
| Silicon Revision | β | B |