DM9051AIN / DM9051AN: High-Speed, Energy-Efficient SPI Fast Ethernet Controller Solution from Davicom

In the era of IoT and smart connectivity, integrating fast data transmission with low power consumption is a top priority for system designers. The DM9051A(I)N from Davicom Semiconductor is a fully integrated, cost-effective, low-pin-count single-chip Fast Ethernet controller with an SPI interface, designed to meet demanding performance and size requirements in industrial and commercial applications.

1. Product Overview

The DM9051A(I)N is a specialized solution featuring a slave SPI interface, a 10/100M PHY, and 4K Dword SRAM. Its compact design and high compatibility simplify PCB layouts and optimize board space.

The product is available in two main variants:

DM9051AN: Commercial grade (0°C to 70°C).

DM9051AIN: Industrial grade (-40°C to +85°C), ideal for harsh operating environments.

2. Key Technical Features

High-Speed SPI Interface: Supports SPI clock speeds up to 50MHz, compatible with SPI clock modes 0 and 3 used by most modern MCUs.

Optimal Energy Efficiency: Supports IEEE 802.3az Energy Efficient Ethernet (EEE) to reduce power consumption when the network is idle.

Smart Networking Capabilities:

• • Supports HP Auto-MDIX for automatic cable crossover detection in both 10M and 100M modes.

  • Integrated Wake-on-LAN (WOL) feature, allowing systems to be triggered remotely via magic packets or link status changes.

  • Hardware Checksum Offload: Supports IPv4 IP/TCP/UDP checksum generation and checking to reduce the host CPU’s workload.

Flexible Design: Multi-voltage I/O supply supports 1.8V, 2.5V, and 3.3V, facilitating easy integration with various processors.

High Reliability: Reaches Class B EMI standards and features built-in data security at the PCB level.

3. Core Specifications

Protocols: Fully compliant with IEEE 802.3u 10Base-T/100Base-TX specifications.

Internal Memory: 16K-Byte SRAM, configurable for internal transmit and receive buffers.

Package: Compact 32-Pin QFN (5mm x 5mm, Pb-Free).

Power Supply: Supports VDDIO (1.8V/2.5V/3.3V) and VCC3 (3.3V).

4. Typical Applications

With its small footprint and robust performance across a wide temperature range, the DM9051A(I)N is the perfect choice for:

• IoT devices and embedded systems.

• Industrial automation and smart home controllers.

• Ethernet expansion modules for microcontrollers lacking built-in networking.

• POS terminals, security cameras, and telecommunication equipment.

Why Choose DM9051A(I)N from Sunrich?

At Sunrich, we are committed to providing genuine Davicom Semiconductor products backed by comprehensive technical documentation and expert support. The DM9051A(I)N series not only delivers superior connectivity performance but also helps customers optimize production costs through high integration and minimal external component requirements.

For more information or to request a quote, please contact the Sunrich support team today!