ATSAMG55J19B-MUT vs ATSAMG55J19A-MUT Comparison
Detailed side-by-side comparison of ATSAMG55J19B-MUT by Microchip Technology and ATSAMG55J19A-MUT 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-MUT - 120MHz Cortex-M4 MCU, 512KB Flash | Microchip
ATSAMG55J19B-MUT ✓ ActiveMicrochip Technology
ATSAMG55J19A-MUT - 120MHz Cortex-M4 MCU 512KB Flash | Microchip
ATSAMG55J19A-MUT ✓ ActiveSpecification Comparison
| Parameter | ATSAMG55J19B-MUT | ATSAMG55J19A-MUT |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $5.74 | $4.58 |
| Core Architecture | ARM Cortex-M4 with FPU (single-precision) and DSP extensions | 32-bit RISC with DSP extensions |
| Maximum CPU Frequency | 120 MHz | — |
| Program Memory (Flash) | 512 KB (512K x 8) | 512 KB (512K x 8) |
| SRAM | 176 KB | — |
| ROM (Boot Loader) | 8 KB | — |
| Supply Voltage | 1.62 V to 3.6 V (single supply) | — |
| Operating Temperature | -40 C to +85 C (Industrial, MUT suffix) | -40C to +85C (Industrial) |
| Package | 64-QFN MRLB, 7.5 x 7.5 mm with exposed pad | 64-pin QFN (7.5 x 7.5 mm) |
| GPIO Count | Up to 47 | — |
| USB | USB 2.0 Full-Speed Device with on-chip transceiver | USB 2.0 High-Speed with on-chip PHY |
| Audio Interface | I2S / SSC (Synchronous Serial Controller) | — |
| Oscillators | 3 to 20 MHz crystal/ceramic resonator + 3 internal RC oscillators | — |
| Boot Loader | Embedded, supports Flash programming | — |
| Watchdog Timer | Yes | — |
| Power-on Reset / Brown-out Detector | Yes | — |
| Mounting Type | Surface Mount | Surface Mount |
| MSL Level | MSL3 (per JEDEC J-STD-020) | [DATA_NEEDED: MSL rating] |
| RoHS Status | Compliant | Compliant |
| Core Processor | — | ARM Cortex-M4 with FPU |
| Maximum Clock Speed | — | 120 MHz |
| RAM Size | — | 176 KB |
| Supply Voltage (VDDIO) | — | 1.62 V to 3.6 V |
| I/O Count | — | [DATA_NEEDED: I/O pin count] |
| Communication Interfaces | — | I2C, SPI, UART/USART, USB, I2S |
| ADC | — | [DATA_NEEDED: ADC channels/resolution] |
| Package Type Code | — | QFN EP T/R (Tape and Reel) |