P4C1682

P4C1681, P4C1682 ULTRA HIGH SPEED 4K x 4 STATIC CMOS RAMS FEATURES Full CMOS, 6T Cell High Speed (Equal Access and Cycle Times) – 12/15/20/25 ns (Commercial) – 20/25/35ns (Military) Low Power Operation Single 5V ± 10%Power Supply Separate Inputs and Outputs – P4C1681 Input Data at Outputs during Write – P4C1682 Outputs in High Z during Write Fully TTL Compatible Inputs and Outputs Standard Pinout (JEDEC Approved) – 24-Pin 300 mil DIP – 24-Pin 300 mil SOIC – 24-Pin 300 mil SOJ – 24-Pin Solder Seal Flat Pack – 28-Pin LCC (450 mil x 450 mil) DESCRIPTION The P4C1681 and P4C1682 are 16,384-bit (4K x 4) ultra high speed static RAMs similar to the P4C168, but with separate data I/O pins. The P4C1681 features a transparent write operation; the outputs of the P4C1682 are in high impedance during the write cycle. All devices have low power standby modes. The RAMs operate from a single 5V ± 10% tolerance power supply. Access times as fast as 12 nanoseconds are available, permitting greatly enhanced system operating speeds. .CMOS is used to reduce power consumption. The P4C1681 and P4C1682 are available in 24-pin 300 mil DIP, SOIC, Solder Seal Flatpack, and SOJ packages, as well as a 28-pin LCC package, providing excellent board level densities. FUNCTIONAL BLOCK DIAGRAM PIN CONFIGURATIONS DIP (P4,C4), SOIC (S4), SOJ (J4) SOLDER SEAL FLAT PACK (FS-1) LCC (L5-1) Document # SRAM109 REV A Revised October 2005 1 P4C1681, P4C1682 MAXIMUM RATINGS1 Symbol Parameter VCC Power Supply...