AM27S281

The AM27S281(1024 words by 8 bits) is a schattky TTL programmable read-only memory (PROM). This device has three-state outputs which are compatible with law-power scholtky bus standards capable of satisfying the requirements of a variety of micropragrammeble controls, mapping functions, code conversion. or logic replacement. Easy word-depth expansion is facilitated by both active LOW(G1 and G2)  and and active HIGH (G3 and G4) output enables. This device is also available in a 300-mil. lateral-center DIP (Am27S281).

The features of AM27S281 can be summarized as (1)fast access time allows high system speed; (2)50% power savings on deselected parts - enhances reliability through total system heat reduction; (3)platinum-sllicida fuses guarantee high reliability, last programming and exceptionally high programming yields (typ >98%); (4)rapid recovery from power-down state provides mum delay.

The absolute maximum ratings of AM27S281 are (1)storage temperature: -65 to +150°C; (2)ambient temperature with power applied: -55 to + 125°C; (3)supply voltage: -0.5 to +7.0V; (4)DC voltage applied to outputs (except during programming): - 0.5 to +Vgg Max.; (5)DC voltage applied to outputs during programming: 21V; (6)output current into outputs during programming (Max. duration of 1 sec): 250 mA; (7)DC input voltage: -0.5 to +5.5V; (8)DO input current: -30 mA to +5 mA; (9)commercial devices ambient temperature (TA): 0 to +75°C, supply voltage (VCC): +4.75 to +5.25V ; (10)military devices case temperature (Tg): -55 to +125°C; (11)supply voltage (VCC): +4.5V to +5.5V.