MA2910

www.DataSheet4U.com APRIL 1995 DS3578-2.5 MA2910 MA2910 RADIATION HARD MICROPROGRAM CONTROLLER The industry standard MA2910 Microprogram Controller forms part of the MA2900 family of devices. Offering a building block approach to microcomputer and controller design, each device in the range is expandable permitting efficient emulation of any microcode-controlled machine. The family has been designed for operation in severe environments such as space, and is qualified to the highest levels of reliability. The MA2910 Micro-program Controller is an address sequencer intended for sequence control of microinstructions stored in microprogram memory in high speed microprocessor applications. All internal elements are full 12 bits wide and address up to 4096 words with one chip. The device has an integral settable 12 bit internal loop counter for repeating instructions and counting loop iterations. The MA2910 has four address sources which allow Microprogram Address to be selected from the microgram counter, branch address bus, 9 level push/pop stack, or internal holding register. The MA2910 supports 100ns cycle times and has an integral decoder function to enable external devices onto branch address bus which eliminates the requirement for an external decoder. FEATURES I Fully Compatible with Industry Standard 2910A I CMOS SOS Technology I Radiation Hard and High SEU Immunity I High Speed / Low Power I Fully TTL Compatible Figure 1: Block Diagram 1 MA2910 OPERATION The MA2910...