(PDF) UM2333 Datasheet - 4K x 8 NMOS ROM

Número de pieza	UM2333
Descripción	4K x 8 NMOS ROM
Fabricantes	UMC
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No Preview Available ! .(l)UMC ============ UM2333 4K x 8 NMOS ROM Features • Access time 250/350/450ns (max.) • Single +5V ±1 0% power supply • TT L compatible inputs and outputs • Three-state outputs • Pin compatible with 2732 EPROM • Two programmable chip selects for output control • N-channel silicon gate technology General Description The UM2333 is a 32,768-bit static MOS read only memory organized as 4096 words by 8 bits. The device is com- pletely static in operation, and operates from a single +5V power supply. All inputs and outputs are TT L com- patible. The two chip select inputs are programmable. Programming of the device is accomplished by a custom masking process. The UM2333 is designed for memory applications where high performance, large bit storage, and simple interfacing are important design objectives. Pin Configuration A7 A6 As A4 A3 A2 A1 Ao 00 01 02 GND VCC As A9 All CS1/CS1 AlO CS2/CS2 07 06 Os 04 03 Block Diagram Au Ao ADDRESS INPUT BUFFER X DECODER Y DECODER vcc GND OUTPUT ENABLE LOGIC - - CS1/CS1 CS2/CS2 32.768 BIT CELL MATRIX y CATING OUTPUT BUFFER 00 01 02 03 04 Os 06 07 1-6 1 page

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PDF UM2333 Data sheet ( Hoja de datos )