Fujitsu MB7128H
the MB7127 and three-state outputs on the MB7128, memory expansion is simple. The memory is fabricated with all logic "zeros" (positive logic). The sophisticated Schottky TTL process enables small chip size and fast access time.DESCRIPTION
The Fujitsu MB7127/MB7128 are high speed Schottky TTL electrically field programmable read only memories. With open collector outputs on Logic level "ones" can be pro- grammed by the highly reliable DEApTM (Diffused Eutetic Aluminum Process) during a simple programming procedure. The extra test cells and unique testing methods provide extremely high programmability.FEATURES
● Organization: 2048 words by 4-bits● TTL compatible input/output
● Fast access time: M B7127E1M B7128E: 55 ns Max. 30 ns Typ. MB7127H/MB7128H: 45 ns Max. 30 ns Max.
● Low Power Dissipation: 155 mA Max.
● Single +5V supply voltage
● Proven high programmability and reliability of DEApTM (Diffused Eutectic Aluminum Process)
● Simplified and lower power programming
● Low current PNP inputs
● MB7127: Open collector outputs
● MB7128: Three-state outputs
● Chip select leads for easy memory expansion
● Standard 18-pin DIP package
● MB7128 pin is compatible with industry standard products: 82S185, HM7685, 63S8...