HD1-15530-8

The HD1-15530-8 is a CMOS Manchester encoder-decoder from Renesas Electronics, designed to provide a complete interface between a host controller and a MIL-STD-1553 dual-redundant serial data bus. The device integrates independent encoder and decoder sections on a single monolithic chip, supporting the Manchester II bi-phase encoding and decoding required by the 1553 protocol. It accepts 16-bit parallel data from the host for transmission and inserts sync pulses and parity, while the decoder recovers clock and data from the incoming serial stream, validates sync patterns, and indicates error conditions such as invalid Manchester codes or parity faults. Packaged in a ceramic dual-in-line (CDIP) enclosure, the HD1-15530-8 operates over the extended temperature range characteristic of high-reliability components and interfaces directly with standard bus transceivers and transformers.

Typical deployments include embedded avionics mission computers, flight control systems, radar processors, satellite telemetry and command subsystems, and ground support equipment where MIL-STD-1553 remains the backbone for deterministic, fault-tolerant data communications. The part is frequently designed into remote terminal (RT), bus controller (BC), and monitor functions within defense and aerospace platforms. From a procurement standpoint, this is a military-grade IC often subject to extended lead times and diminishing supply as legacy 1553 designs persist in long-life programs. The CDIP package and Renesas heritage (originally Harris/Intersil) mean that buyers must verify current production status, track authorized distribution channels, and assess the need for ITAR or EAR export compliance documentation when sourcing for sensitive applications. Engineers typically cross-reference the HD1-15530-8 against standardized military drawings or source control documents to ensure form, fit, and functional interchangeability in existing qualified bill-of-material slots.