INTRODUCTION
The UT1553B RTR is a monolithic CMOS VLSI solution to the requirements of the dual-redundant MIL-STD-1553B interface. Designed to reduce cost and space, the RTR integrates the remote terminal logic with a user-configured 1K x 16 static RAM. In addition, the RTR has a flexible subsystem interface to permit use with most processors or controllers.
The RTR provides all protocol, data handling, error checking, and memory control functions, as well as comprehensive self-test capabilities. The RTR’s memory meets all of MIL-STD-1553B message storage needs through user-defined memory mapping. This memory mapped architecture allows multiple message buffering at

FEATURES
❐ Complete MIL-STD-1553B remote terminal interface
❐ 1K x 16 of on-chip static RAM for message data, completely accessible to host
❐ Self-test capability, including continuous loop-back compare
❐ Programmable memory mapping via pointers for efficient use of internal memory, including buffering multiple messages per subaddress
❐ RT-RT Terminal Address Compare
❐ Command word stored with incoming data for enhanced data management
❐ User selectable RAM Busy (RBUSY) signal for slow or fast processor interfacing
❐ Full military operating temperature range, -55°C to +125°C, screened to the specific test methods listed in Table I of MIL-STD-883, Method 5004, Class B, also Standard Military Drawing available
❐ Available in 68-pin pingrid array package