SYS321000ZK-015

www.DataSheet4U.com 1M x 32 SRAM MODULE SYS321000ZK/LK - 012/015/020/025 Issue 1.5 : December 1998 Description The SYS321000ZK/LK is a industry standard plastic 32Mbit Static RAM Module housed in a 72 pin plastic SIMM & ZIP package organised as 1M x 32. The module utilises fast SRAMs housed in SOJ packages, and uses double sided surface mount techniques to achieve a very high density module. The module has four Chip Selects, which allow reading and writing to individual bytes or words. The pins PD0-3, are used to identify module memory density in applications where alternative modules can be interchanged. Features Access Times of 12/15/20/25 ns. 72 Pin ZIP, SIMM package 5 Volt Supply ± 10%. Low Power Dissipation: Average (min cycle) Standby -L Version (CMOS) Completely Static Operation. On-board Supply Decoupling Capacitors. Equivalent to EDI part EDI8F321024C, IDT part IDT7MP4120, and Cypress part CYM1851. 7.48 W (Max). 22 mW (Max). Block Diagram A0 - A19 WE OE 1M x 4 SRAM CS1 D0 - D3 1M x 4 SRAM D4 - D7 Pin Definition ZIP NC PD3 PD0 D0 D1 D2 D3 VCC A7 A8 A9 D4 D5 D6 D7 WE A14 CS1 CS3 A16 GND D16 D17 D18 D19 A10 A11 A12 A13 D20 D21 D22 D23 GND A19 NC SIMM 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 NC PD2 GND PD1 D8 D9 D10 D11 A0 A1 A2 D12 D13 D14 D15 GND A15 CS2 CS4 A17 OE D24 D25 D26 D27 A3 A4 A5 VCC A6 D28 D29 D30 D31 A18 NC TOP VIEW 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44...