M66255FP

MITSUBISHI MITSUBISHI 〈DIGITAL 〈DIGITAL ASSP ASSP 〉 〉 M66255FP M66255FP 8192 × 10-BIT LINE MEMORY (FIFO) 8192 × 10-BIT LINE MEMORY (FIFO) DESCRIPTION The M66255FP is a high-speed line memory with a FIFO (First In First Out) structure of 8192-word × 10-bit configuration which uses high-performance silicon gate CMOS process technology. It has separate clock, enable and reset signals for write and read, and is most suitable as a buffer memory between devices with different data processing throughput. FEATURES Memory configuration of 8192 words × 10 bits (dynamic memory) High-speed cycle ............................................. 30ns (Min.) High-speed access ......................................... 25ns (Max.) Output hold ........................................................ 5ns (Min.) Fully independent, asynchronous write and read operations Variable length delay bit Output .................................................................... 3 states APPLICATION Digital photocopiers, high-speed facsimile, laser beam printers. PIN CONFIGURATION (TOP VIEW) Q0 ← 1 Q1 ← 2 DATA OUTPUT Q2 ← 3 Q3 ← 4 Q4 ← 5 READ ENABLE INPUT RE → 6 28 ← D0 27 ← D1 26 ← D2 25 ← D3 24 ← D4 23 ← WE WRITE ENABLE INPUT DATA INPUT M66255FP READ RESET INPUT RRES → 7 GND 8 READ CLOCK INPUT RCK → 9 Q5 ← 10 Q6 ← 11 DATA OUTPUT Q7 ← 12 Q8 ← 13 Q9 ← 14 22 ← WRES WRITE RESET INPUT 21 VCC 20 ← WCK WRITE CLOCK INPUT 19 ← D5 18 ← D6 17 ← D7 16 ← D8 15 ← D9 DATA INPUT Outline 28P2W-C BLO...