DP83848HSQ/NOPB

The DP83848HSQ/NOPB is an extended temperature 10/100 Mbps Ethernet physical layer (PHY) transceiver manufactured by Texas Instruments, delivering IEEE 802.3u-compliant connectivity for single-port network interfaces. It integrates the full physical coding sublayer and physical medium attachment functions with auto-negotiation, auto-MDIX crossover detection, and a choice of MII or RMII digital interfaces to the MAC. The device operates from a single 3.3 V supply while generating its own 1.8 V core voltage, and it provides a programmable 25 MHz clock output—minimizing external component count. Housed in a 40-pin QFN package, the device features enhanced ESD protection and robust link integrity diagnostics suited for noise-prone embedded environments.

Typical deployment scenarios include hardened industrial automation controllers, building management system nodes, fieldbus gateways, and embedded computing modules where stable data transmission is required across factory floors or extended temperature ranges. The transceiver also serves aerospace and defense platforms that demand deterministic, low-latency communication over copper media. For procurement, the “HS” suffix confirms an industrial-grade temperature rating, while the NOPB designation ensures lead-free, RoHS-compliant finishes suitable for high-reliability production flows. Texas Instruments maintains long product lifecycle commitments for this family, reducing redesign risk in sustained programs, and the compact QFN form factor aids dense board layouts where thermal efficiency and footprint are critical constraints.