MB7121E
DESCRIPTION
The Fujitsu MB7121 and MB7122 are high speed Schottky TTL electrically field programmable read only memories. With open collector outputs on the MB7121 and three-state outputs on the MB7122, memory expansion is simple.
The memory Is fabricated with all logic "zeros" (positive logic). Logic level "ones" can be pro-
FEAr URES e Organization as 1024 words by 4-blts, fully decoded e TTL patible input/output e Fast access time:
MB7121 El MB7122E: 45ns Max_ 25ns Typ_
MB7121H/MB7122H: 35ns Max_ 25ns Typ_ e Low power dissipation: 150m A max. e Single +5V supply voltage e Proven high programmability and reliability of DEAp TM (Diffused Eutectic Aluminum Process) e Low current PNP inputs grammed by the highly reliable DEAp TM (Diffused Eutectic Aluminum Process) during a simple programming procedure.
The sophisticated Schottky TTL process enables small chip size and fast access times.
The extra test cells and unique testing methods provide extremely high programmability. e Simplified and...
