The DP83910A CMOS SNI Serial Network Interface is a product compatible with IEEE 802.3 Ethernet, including Manchester data encoding and decoding functions. It integrates a balanced driver and receiver, on-board crystal oscillator, collision signal translator, and diagnostic loopback feature.
The DP83910A CMOS Serial Network Interface (SNI) is a direct‑pin equivalent of the bipolar DP8391 SNI and provides Manchester encoding and decoding for IEEE 802.3 Ethernet/Thin‑Ethernet networks. It interfaces the DP8390 NIC to the DP8392 CTI or an Ethernet transceiver cable, converting NRZ data to Manchester and vice‑versa.
The document includes a functional description, oscillator and driver details, pin descriptions, absolute maximum ratings, DC specifications, switching characteristics, and physical dimensions for the 24‑pin DIP and 28‑pin PLCC packages.
| Supply Voltage (Vcc) | 0.5 V to +7 V |
|---|---|
| Typical Current Consumption | < 70 mA |
| Oscillator Frequency | 20 MHz crystal, 10 MHz transmit clock |
| Input High Voltage (VIH) | 2.0 V |
| Differential Input Voltage Range | -5.5 V to +16 V |
It provides Manchester encoding and decoding for IEEE 802.3 Ethernet/Thin‑Ethernet local‑area networks, converting NRZ data to Manchester and back.
The absolute maximum supply voltage is from –0.5 V to +7 V.
The device typically consumes less than 70 mA of current.