MSM538002E

Semiconductor MSM538002E 524,288-Word x 16-Bit or 1,048,576-Word x 8-Bit MASKROM DESCRIPTION The OKI MSM538002E is a high-speed CMOS Mask ROM that can electrically switch between 524,288-word x 16-bit or 1,048,576-word x 8-bit configurations. The MSM538002E Operates on a single 5.0V power supply and is TTL compatible. The chip's asynchronous I/O requires no external clock assuring easy operation. A power-down mode provides low power dissipation when the chip is not selected. The CE and OE pins are provided as control signals that permit three-stated output allowing easy memory expansion on a system bus.The MSM538002E is suited for use as large capacity fixed memory for microcomputers and data terminals. FEATURES Single 5.0V power supply 524,288-words x 16-bit / 1,048,576-words x 8-bit Access time 100ns MAX Input/Output TTL compatible Tri-State output configurations Internal powerdown function Packages: (DIP42-P-600-2.54) (MSM538002E-xxRS) 42-PIN PLASTIC DIP (MSM538002E-xxGS-K) 44-PIN PLASTIC SOP (SOP44-P-600-1.27-K) 44-PIN PLASTIC TSOP (TSOPII44-P-400-0.80-K) (MSM538002E-xxTS-AK) 8MEPROM (42-PIN) pin compatible 1 MSM538002E PIN CONFIGURATION NC 1 A18 1 A17 2 A7 3 A6 4 A5 5 A4 6 A3 7 A2 8 A1 9 A0 10 CE 11 VSS 12 OE 13 D0 14 D8 15 D1 16 D9 17 D2 18 D10 19 D3 20 D11 21 42PIN DIP 42 NC 41 A8 40 A9 39 A10 38 A11 37 A12 36 A13 35 A14 34 A15 33 A16 32 BYTE 31 VSS 30 D15/A-1 29 D7 28 D14 27 D6 26 D13 25 D5 24 D12 23 D4 22 VCC A18 2 A17 3 A7 4 A6 5 A5 6 A4 7 A3 8 A2 9 A1 10 A0 1...