P4C1256

The P4C1256 is a 262,144-bit high-speed CMOS static RAM organised as 32K x 8. The CMOS memory require no clocks or refreshing and has equal access and cycle times. Inputs are fully TTL-compatible. The RAM operates from a single 5V ± 10% tolerance power supply.

Access times as fast as 12 nanoseconds permit greatly enhanced system operating speeds. CMOS is used to reduce power consumption to a low level.

The P4C1256 is a member of a family of PACE RAMTM products offering fast access times.

The P4C1256 devices provide asynchronous operation with matching access and cycle times. Memory locations are specified on address pins A0 to A14. Reading is accomplished by device selection (CE) and output enabling (OE) while write enable (WE) remains HIGH. By presenting the address under these conditions, the data in the addressed memory location is presented on the data input/output pins. The input/output pins stay in the HIGH Z state when either CE or OE is HIGH or WE is LOW.

Package options for the P4C1256 include 28 pin DIP, SOJ and TSOP packages. For military temperature range, ceramic DIP and LCC packages are available.