Am9244 Datasheet | AMD

Am9044 - Am9244 4096 x 1 Static R/W Random Access Memory DISTINCTIVE CHARACTERISTICS - LOW OPERATING POWER (MAX) Am9044/Am9244 38Sm W (70m A) Am90L44/Am92L44 27Sm W (SOm A) - LOW STANDBY POWER (MAX) Am92L44 110m W (20m A) - Access times down to 200ns (max) - Military temperature range available to 250ns (max) - Am9044 is a direct plug-in replacement for 4044 - Am9244 pin and function patible with Am9044 and 4044 plus CS power down feature - Fully static - no clocking - Identical access and cycle time - High output drive - 4.0m A sink current @ O.4V - TTL identical interface iogic levels - 100% MIL-STD-883 reliability assurance testing BLOCK DIAGRAM GENERAL DESCRIPTION The Am9044 and Am9244 are high performance, static, NChannel, read/write, random access memories organized as 4096 x 1. Operation is from a single 5V supply, and all input! output levels are identical to standard TTL specifications. Low power versions of both devices are available with power savings of about 30%. The Am9044 and Am9244 are the same except that the Am9244 offers an automatic CS power down feature. The Am9244 remains in a low power standby mode as long as CS remains high, thus reducing its power requirements. The Am9244 power decreases from 385m W to 165m W in the standby mode, and the Am92L44 from 275m W to 110m W. The CS input does not affect the power dissipation of the Am9044. Data readout is not destructive and the same polarity as data input. CS provides for easy selection of an individual package when the outputs are OR-tied. The outputs of 4.0m A for Am9244 and Am9044 provide increased short circuit current for improved pacitive drive. CONNECTION...