: The most recent comprehensive technical reference publicly available is the v1.6 Datasheet , which covers the AST2500 and AST2520 A2 revisions. BMC LTS Specification
The "new" datasheet you are looking for likely clarifies the subtle differences between the A1 and A2 silicon revisions—critical information for hardware stability. aspeed ast2500 datasheet new
According to the latest AST2500 datasheet, this System-on-Chip (SoC) integrates high-performance computing with specialized management logic: : The most recent comprehensive technical reference publicly
| Parameter | Specification (New Revision) | Notes | | :--- | :--- | :--- | | | ARM926EJ-S, 32-bit RISC | 384KB L2 Cache | | Max Frequency | 400 MHz (Standard) / 800 MHz (Overdrive mode) | Overdrive requires enhanced cooling | | Operating Voltage | 3.3V I/O, 0.9V Core, 1.8V DDR4 | New: Absolute max input on ADC: 1.8V | | Integrated Video | 2D Graphics Engine, 1920x1200@60Hz | 256MB DDR4 frame buffer | | Host Interfaces | PCIe Gen2 (x1, dual root), eSPI, LPC 1.0 | New: eSPI is preferred for Z690/C621 chipsets | | Peripheral IF | 2x GbE MAC, 6x UART, 2x SPI, 1x SD/SDIO, 8x PWM | New: SPI clock speed maxed at 100MHz | | Temperature Range | 0°C to 70°C (Commercial) or -40°C to 105°C (Industrial) | Check suffix: -IR for industrial | | Package | 484-pin LFBGA, 19x19mm | 0.8mm pitch | A significant leap from its predecessors was the
At its heart, the AST2500 utilizes an . A significant leap from its predecessors was the transition from DDR3 to DDR4 memory support, reaching speeds of up to 1600Mbps. This shift allows for the higher performance overhead required by increasingly complex modern server environments. Key Hardware Features According to official ASPEED documentation
The transition from the AST2400 to the AST2500 introduced several critical enhancements for modern data centers: AST2500 - ASPEED Technology