Data Device Corporation of Bohemia, New York, DDC’s Simple System RT (SSRT) provides an interface between a simple (processorless) system and a 1553 bus. Like the Enhanced Mini-ACE™, the SSRT is available in a one-inch square flatpack or gull lead package, along with the same array of options for logic voltage, self-test, clock frequency, and transceiver compatibility. The SSRT is ideal for stores and other simple systems that do not require a microprocessor. To streamline the interface to these systems, the SSRT includes an internal 32-word FIFO for received data words. This serves to ensure that only complete, consistent blocks of validated data words are transferred to a system. The SSRT is compliant to MIL-STD-1553A/B Notice 2, including subaddress 30 wraparound, and STANAG-3838.