DM9051AN / DM9051AIN Single-Chip Fast Ethernet NIC Controller
The Davicom DM9051AN / DM9051AIN is a highly integrated single-chip Fast Ethernet NIC controller designed to provide reliable 10/100 Mbps network connectivity for embedded and industrial systems. By integrating essential Ethernet functions into a compact device, it helps reduce external component requirements and simplifies the implementation of wired network interfaces. The controller is particularly suited to applications requiring stable, energy-efficient and long-term Ethernet connectivity. Typical use cases include industrial controllers, embedded PCs, communication gateways, automation systems and connected devices in industrial and IoT infrastructures.
DM9051AN / DM9051AIN – Technical Features and System Benefits
- Slave SPI interface with clock rates up to 50 MHz for high-throughput applications
- Supports SPI Clock Modes 0 and 3
- 10BASE-T, 100BASE-TX and 100 Mbit fibre interface
- HP Auto-MDIX crossover function in 10BASE-T and 100BASE-TX
- IEEE 802.3az Energy Efficient Ethernet (EEE)
- EEPROM interface for configuring chip settings
- Back-pressure flow control in half-duplex mode
- IEEE 802.3x flow control in full-duplex mode
- Wake-up frame, link status change and magic packet events for Wake-on-LAN (WOL)
- IPv4/TCP/UDP checksum generation and verification
- Configurable TX/RX buffers within 16 kByte memory
- Integrated 3.3 V to 1.8 V low-noise voltage regulator for core and analogue blocks
- Class B EMI compliant, HBM ESD rating 8 kV
- Industrial temperature range -40 °C to +85 °C (DM9051AIN)
- 3.3 V I/O with 5 V tolerance
- 32-pin QFN package
DM9051AN / DM9051AIN Applications:
- Smart Metering
- Security & Motion Control
- Building Automation
- VoIP
- Sensor and control applications in the field of Industry 4.0
Embedded Ethernet for industrial communication solutions
The slave SPI interface supports clock modes 0 and 3 and is therefore compatible with the standard master SPI interfaces found in industrial MCUs and processors.
The code-efficient SPI burst command format minimises the access overhead for internal registers and packet data in memory – an advantage for resource-efficient embedded designs.
DM9051AN / DM9051AIN for your Ethernet application? Talk to our experts.
