specifications
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| TYPE | DESCRIPTION |
| Mfr | Ambiq Micro, Inc. |
| Series | Apollo4 Blue Plus |
| Package | Tape & Reel (TR) |
| Product Status | ACTIVE |
| Package / Case | 131-VFBGA |
| Speed | 192MHz |
| RAM Size | 2.75MB |
| Number of I/O | 81 |
| Operating Temperature | -20°C ~ 60°C |
| Core Processor | ARM® Cortex®-M4F |
| Connectivity | GPIO, I2C, MMC/SD/SDIO, SPI, UART/USART, USB OTG |
| Peripherals | AES, DMA, I2S, WDT |
| Supplier Device Package | 131-BGA (4.7x4.7) |
| Architecture | MCU |
| Flash Size | 2MB |