Aspeed Ast2500 Datasheet May 2026

The datasheet lists the following external interfaces. Pay attention to voltage domains here.

---

+----------------+      +------------------+      +-----------------+
|   ARM Cortex   |      |   DDR4/DDR3      |      |   PCIe Gen2     |
|   A7 (800 MHz) |<---->|   Controller     |<---->|   RC/EP         |
+----------------+      +------------------+      +-----------------+
        |                         |                         |
        v                         v                         v
+----------------+      +------------------+      +-----------------+
|    L1/L2 Cache  |      |    VGA / 2D Engine|      |   USB 2.0 Host  |
|    (8KB/256KB) |      |    (1920x1200)    |      |   (2x)          |
+----------------+      +------------------+      +-----------------+
        |                         |                         |
        v                         v                         v
+---------------------------------------------------------------+
|                  Advanced Peripheral I/O                       |
|   UARTs, I2C, SPI, eMMC, SDIO, PWM, ADC, GPIOs (200+)        |
+---------------------------------------------------------------+
        |                         |                         |
        v                         v                         v
+----------------+      +------------------+      +-----------------+
|   Security      |      |   MAC (2x)       |      |   LPC/eSPI      |
|   Engine        |      |   (10/100/1000)  |      |   Bridge        |
+----------------+      +------------------+      +-----------------+

Open-source BMC firmware (OpenBMC, u-bmc) is the standard for hyperscale data centers. Aspeed Ast2500 Datasheet