SYS88000RKX-70

www.DataSheet4U.com 8M x 8 SRAM MODULE SYS88000RKX - 70/85/10/12 Issue 1.5: April 2001 Description The SYS88000RKX is a plastic 64Mbit Static RAM Module housed in a standard 38 pin Single In-Line package organised as 8M x 8 with access times of 85,100, or 120 ns. The module is constructed using sixteen 512Kx8 SRAMs in TSOPII packages mounted onto both sides of an FR4 epoxy substrate. This offers an extremely high PCB packing density. The device is offered in standard and low power versions, with the -L module having a low voltage data retention mode for battery backed applications. On board buffering is provided to reduce output capacitance. Note: CS and OE on the module, should be used with care to avoid on and off board bus contention. Features Access Times of 85/100/120 ns. Low Power Disapation: Operating 935 mW (Max.) Standby -L Version 11 mW (Max.) 5 Volt Supply ± 10%. Completely Static Operation. Equal Access and Cycle Times. Low Voltage VCC Data Retention. On-board Decoding & Capacitors. 38 Pin Single-In-Line package. Upgrade from SYS84000RKX (32Mbit). Block Diagram Pin Definition A22 A20 Vcc WE D2 D3 D0 A1 A2 A3 A4 GND D5 A10 A11 A5 A13 A14 A19 CS A15 A16 A12 A18 A6 D1 GND A0 A7 A8 A9 D7 D4 D6 A17 Vcc OE A21 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 OE WE A0 - A18 512K X 8 SRAM T/R BI-DIRECTIONAL DRIVERS A19 A20 A21 A22 4 TO 16 DECODER D0 - D7 B0~7 A0~7 D0 - D7 74FCT245 OE 51...