SYS84000RKX-12 Datasheet | MOSAIC

.. 4M x 8 SRAM MODULE SYS84000RKX - 85/10/12 Issue 1.7 : April 2001 Description The SYS84000RKX is a plastic 32Mbit Static RAM Module housed in a standard 38 pin Single In-Line package organised as 4M x 8 with access times of, 85,100, or 120 ns. The module is constructed using eight 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. Buffering is provided on the module to reduce the output capacitance to 8p F(Typ). 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 Disipation: Operating 770 m W (Max.) Standby-L Version (CMOS) 4.84m W (Max.) - 5 Volt Supply ± 10%. - pletely Static Operation. - Equal Access and Cycle Times. - Low Voltage VCC Data Retention. - On-board Decoding & Capacitors. - 38 Pin Single-In-Line package (SIP). - Upgrade path to SYS88000RKX (64Mbits). - - Block Diagram Pin Definition NC 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 CS CS T/R A19 A20 A21 Q0~3 DECODER Q4~7 D0 -...