DESCRIPTION
The MR27V402D is a 4Mbit electrically Programmable Read-Only Memory whose configuration can be electrically switched between 262,144 word x 16bit and 524,288 word x 8bit. The MR27V402D operates on a single +3V-3.3V power supply and is TTL compatible. Since the MR27V402D operates asynchronously , external clocks are not required , making this device easy-to-use. The MR27V402D is suitable as large-capacity fixed memory for microcomputers and data terminals. It is manufactured using a CMOS double silicon gate technology and is offered in 40-pin DIP, 40-pin SOP or 44-pin TSOP packages.

FEATURES
• 262,144 word x 16bit / 524,288 word x 8bit electrically switchable configuration
• Single +3V-3.3V power supply
• Access time 100ns access time (Vcc=+3V)
                    80ns access time (Vcc=+3.3V)
• Input / Output TTL compatible
• Three-state output
• Packages
            40-pin plastic DIP (DIP40-P-600-2.54) (Product name : MR27V402DRP)
            40-pin plastic SOP (SOP40-P-525-1.27-K) (Product name : MR27V402DMP)
            44-pin plastic TSOP (TSOP II 44-P-400-0.80-K) (Product name : MR27V402DTP)