AB-9961-2

AB-9961-2 AB-9961-2 AB Semicon ○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○ website: http://www.ab-semicon.com Pr oduct Specif ica tions High Speed 25ns (typical) access time Ideal for interfacing 8-bit bus to 16-bit bus systems Ideal for interfacing 16-bit bus to 32-bit bus systems using two AB-9961 chips Capacity of 4096 x 8-bit in 8-bit to 16-bit bus system Mailbox (Door Bell) and Interrupt 100-pin PQFP package Low Power C-Mos Technology 0.8 micron AB Semicon UK Ltd. - Tel: +44 (0) 1444 870 408 Fax: +44 (0) 1444 870 452 Fax: +1 512 288 7676 AB Semicon Inc. - Tel: +1 512 288 6750 AB-9961-2 The AB-9961-2 (25ns) high-speed Dual Ported RAM may be used to connect two CPUs to allow quick (20Mbytes/second) asynchronous data transfer, i.e. connect an AB-1, 8808 or Z180 type 8-bit processor with a 16-bit 68xxx or other RISC processor system. Diagrams Applications Interface to Engine for Fax, Printer and Scanner. Inter-Processor communication with high band width. Telephone Exchange and Switches. AB Semicon UK Ltd., 62 Victoria Road, Burgess Hill, West Sussex, RH15 9LR, United Kingdom Tel: +44 (0) 1444 870 408 Fax: + 44 (0) 1444 870 452 AB Semicon Inc., 8305 Highway 71 West, Austin, Texas 78735, United States Tel: +1 512 288 6750 Fax: +1 512 288 7676 Specification of this device is subject to change ○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○ ○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○ ○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○