This series is a family of static random-access memories, each organized as 1024 one-bit words_ Due to their static design, system overhead costs are minimized by elimination of refresh-clocking circuitry and by simplification of the timing requirements. In addition all inputs and outputs are fully compatible with Series 74 TTL, including the single 5-volt power supply. These memories are fabricated by means of the same technology employed with the TMS 4030 JL, NL 4K RAM -N-channel silicon-gate. This technology provides optimum chip density and performance when cost is considered_ Three performance ranges allow the designer to better match the memory to the specific system requirements, thereby maximizing the cost/performance trade-off. The TMS 4033, TMS 4034, and TMS 4035 are offered in 16-pin dual-in-line ceramic (JL suffix) and plastic (NL suffix) packages designed for insertion in mounting-hole rows on 300-mil centers. These devices are characterized for operation from 0° C to 70° C.