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