MR27V6402D

¡ Semiconductor MR27V6402D DESCRIPTION 1A Preliminary 4,194,304-Word x 16-Bit or 8,388,608-Word x 8-Bit One Time PROM The MR27V6402D is a 64Mbit electrically Programmable Read-Only Memory whose configuration can be electrically switched between 4,194,304 word x 16bit and 8,388,608 word x 8bit. The MR27 V6402D operates on a single +3V-3.3V power supply and is TTL compatible. Since the MR27V6402 D operates asynchronously , external clocks are not required , making this device easy-to-use. The MR27V6402D 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 44-pin SOP package. FEATURES 4,194,304 word x 16bit / 8,388,608 word x 8bit electrically switchable configuration Single +3V-3.3V power supply Access time 150ns access time (Vcc=+3V) 120ns access time (Vcc=+3.3V) Input / Output TTL compatible Three-state output Package 44-pin plastic SOP (SOP44-P-600-1.27-K) February 1999 1 MR27V6402D PIN CONFIGURATION (TOP VIEW) A21 1 A18 2 A17 3 A7 4 A6 5 A5 6 A4 7 A3 8 A2 9 A1 10 A0 11 CE 12 VSS 13 OE 14 D0 15 D8 16 D1 17 D9 18 D2 19 D10 20 D3 21 D11 22 44 A20 43 A19 42 A8 41 A9 40 A10 39 A11 38 A12 37 A13 36 A14 35 A15 34 A16 33 BYTE/Vpp 32 VSS 31 D15/A-1 30 D7 29 D14 28 D6 27 D13 26 D5 25 D12 24 D4 23 VCC 44-pin SOP PIN NAMES D15/A-1 A0-A21 D0-D14 CE OE VCC VSS BYTE/VPP Address input Data output Chip enable Output enable FUNCTIONS Data output / Address inp...