MR27V452D

¡ Semiconductor MR27V452D 262,144-Word x 16-Bit or 524,288-Word x 8-Bit 8-Word x 16-Bit or 16-Word x 8-Bit Page Mode One Time PROM DESCRIPTION 1A The MR27V452D is a 4Mbit electrically Programmable Read-Only Memory with page mode. Its configuration can be electrically switched between 262,144 word x 16bit and 524,288 word x 8bit. The MR27V452D operates on a single +3.3V power supply and is TTL compatible. The MR27V452D provides Page mode which can greatly reduce the read access time. Since the MR27V452D operates asynchronously , external clocks are not required , making this device easy-to-use. The MR27V452D 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 +3.3V power supply Access time 100ns Page mode access time 30ns Input / Output TTL compatible Three-state output Packages 40-pin plastic DIP (DIP40-P-600-2.54) (Product name : MR27V452DRP) 40-pin plastic SOP (SOP40-P-525-1.27-K) (Product name : MR27V452DMP) 44-pin plastic TSOP (TSOP II 44-P-400-0.80-K) (Product name : MR27V452DTP) November 1999 1/10 MR27V452D PIN CONFIGURATION (TOP VIEW) NC 1 NC 2 A17 1 A7 2 A6 3 A5 4 A4 5 A3 6 A2 7 A1 8 A0 9 CE 10 VSS 11 OE 12 D0 13 D8 14 D1 15 D9 16 D2 17 D10 18 D3 19 D11 20 40 A8 39 A9 38 A10 37 A11 36 A12 35 A13 ...