82S105

The 82S105 is a bipolar programmable state machine of the Mealy type. 82S105 contains logic AND-OR gate arrays with user programmable connections which control the inputs of on-chip state and output registers.These consist respectively of 6 Qp and 8 Qf edge-triggered,clocked S/R flip-flops,with an asychronous preset option. All flip-flops are unconidtionally preset to "1" during power turn-on. The AND array combianes 16 external inputs, I0-15, with six internal inputs, P0-15, fed back from the state register to form up to 48 transition terms (AND terms). All transition terms can be include true, or do not care states of the controlling variables, and are merged in the OR array to issue next-state and next-output commands to their respective registers on the Low-to-high transition of the Clock pulse. Both true and complement transition terms can be generated by optional use of the internal variable(C) from the Complement Array. Also , if desired, the preset input can be converted to output enable function, as an additional user-programmable option.

82S105 has many unique features: The first one is field-programmable(Ni-Cr link). The second one is 16 input vanables. The third one is 8 output functions. The forth one is 48 transition terms.The fifth one is 6-bit state register. The sixth one is 8-bit otput register. The seventh one is transition complement array. The eighth one is positive edge-trigger clock. The ninth one is programmable asychronous preet or output enable. The tenth one is TTL compatible, etc.Besides, there are some applications. The first one is interface products. The second one is sequence detectors. The third one is peripheral controllers. The forth one is timming generators. The fifth one is elevalor controllers. The sixth one is counters, etc.

There are some absolute maximum ratings about 82S105. Supply voltage(Vcc) is +7 Vdc. Input voltage(Vi) is +10.0 Vdc. Output voltage(Vo) is +5.5 Vdc. Input current(Iik) is -30 mA min and +30 mA max.Operation temperature range(Ta) is -55  to +125 . Storage temperature range(Tstg) is -65  to +150 .

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