Aspeed Ast2500 Datasheet New Access

In the world of enterprise IT, data centers, and embedded systems, the Baseboard Management Controller (BMC) is the silent workhorse. It allows administrators to monitor, power cycle, and reconfigure servers remotely, entirely independent of the main CPU or OS. For years, the market leader in this niche has been ASPEED Technology.

The AST2500 is a sophisticated System-on-Chip (SoC) designed from the ground up for server management. Its role is to operate independently of the main server CPU, providing out-of-band (OOB) management capabilities. This allows system administrators to power cycle a hung server, reinstall an operating system, or monitor thermal sensors even when the primary processor is offline.

for open-source firmware implementation details related to this hardware. with the newer aspeed ast2500 datasheet new

Before spinning your next PCB, create an account on ASPEED’s website. Download Revision 1.6 or higher. Pay special attention to Section 4 (Power Sequencing) and Appendix C (Errata). Your future debug time depends on it.

Provides efficient processing for Linux-based OpenBMC or proprietary firmware stacks. Memory Architecture In the world of enterprise IT, data centers,

Support for multiple fan tachometers and PWM fan controls, allowing the BMC to intelligently adjust server cooling based on real-time thermal readings.

| 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 | The AST2500 is a sophisticated System-on-Chip (SoC) designed

Designing a circuit board around the AST2500 requires strict adherence to its multi-rail power delivery network (PDN): 1.2V nominal for the internal logic and ARM processor. I/O Voltages ( VDDIOcap V sub cap D cap D cap I cap O end-sub

According to the AST2500 technical documentation, the chip is designed to handle complex monitoring tasks with minimal power consumption. Specification ARM1176JZF-S (800MHz) Graphics 2D VGA, 1920x1200 at 60Hz 32bpp Memory Supports DDR3/DDR4 (internal/external) Networking Dual 10/100/1000 Mbps MACs Security Secure Boot, Trusted Platform Module (TPM) support Connectivity PCI Express Gen1, I2C, UART, SPI, USB 2.0 Packaging TFBGA-456 (21x21 mm) 3. Core Functions and Capabilities

The AST2500, while appearing as a simple onboard chip, is a powerful designed for a specific purpose. Its block diagram reveals a complex integration of several key components: