Aeroflex CT2553 is a MIL-STD-1553 Bus Controller (BC), Remote Terminal Unit (RTU) and Bus Monitor (MT) device. It features dual low-power transceivers, complete BC/RTU/MT protocol logic, MIL-STD-1553 to host interface unit and 8K x 16 RAM.
This manual provides a complete description of the Aeroflex CT2553 family of Advanced Integrated MUX (AIM) hybrids, which combine a Bus Controller, Remote Terminal and Bus Monitor in a single 78‑pin DIP or flat‑pack module. It explains the functional blocks, memory architecture, and the required external components for MIL‑STD‑1553 interfacing.
Detailed sections cover pin‑out diagrams, electrical specifications, memory management, register definitions, configuration and interrupt handling, as well as ordering information for the CT2553, CT2554, CT2555 and CT2556 variants.
| Receiver Differential Input Voltage | 40 max Vp-p |
|---|---|
| Differential Input Impedance | 7 min KΩ |
| CMRR | 40 min dB |
| Transmitter Differential Output Voltage | 6.0 min – 9.0 max Vp-p |
| Output Rise and Fall Times | 100 min – 300 max nsec |
| Logic High Input Voltage (VIH) | 2.2 min V |
| Logic Low Input Voltage (VIL) | 0.8 max V |
| Clock Frequency | 16 MHz |
| Operating Temperature Range | -55 to +125 °C |
| Package Pin Count (DIP) | 78 pins |
The CT2553 operates from –55 °C to +125 °C (case temperature).
The DIP version of the CT2553 uses a 78‑pin package.
An external 16 MHz clock is required for operation.
The maximum receiver differential input voltage is 40 Vp‑p.