M66282FP

M66282FP 8192 × 8-Bit Line Memory REJ03F0255-0200 Rev.2.00 Sep 14, 2007 Description The M66282FP is high speed line memory that uses high performance silicon gate CMOS process technology and adopts the FIFO (First In First Out) structure consisting of 8192 words × 8 bits. The M66282FP, performing reading and writing operations at different cycles independently and asynchronously, is optimal for buffer memory to be used between equipment of different data processing speeds. Features Memory configuration: 8192 words × 8 bits (dynamic memory) High speed cycle: 25 ns (Min) High speed access: 18 ns (Max) Output hold: 3 ns (Min) Reading and writing operations can be completely carried out independently and asynchronously Variable length delay bit Input/output: TTL direct connection allowable Output: 3 states Application Digital copying machine, laser beam printer, high speed facsimile, etc. Block Diagram Data inputs D0 to D7 13 14 15 16 21 22 23 24 Data outputs Q0 to Q7 1 2 3 4 9 10 11 12 Input buffer Output buffer Write control circuit Write address counter Read address counter Read control circuit WEB 20 Write enable input WRESB 19 Write reset input WCK 17 Write clock input VCC 18 Memory array 8192 × 8 bits 5 REB Read enable input 6 RRESB Read reset input 8 RCK Read clock input 7 GND REJ03F0255-0200 Rev.2.00 Sep 14, 2007 Page 1 of 13 M66282FP Pin Arrangement M66282FP Q0 1 Data output Q1 2 Q2 3 Q3 4 Read enable input REB 5 Read ...