TIB82S105BC 16X48X8 FIELD-PROGRAMMABLE LOGIC SEQUENCER WITH 3-STATE OUTPUTS OR PRESET

SRPS025A - SEPTEMBER 1985 - REVISED NOVEMBER 1995

features

• 50-MHz Clock Rate
• Power-On Preset of All Flip-Flops
• 6-Bit Internal State Register With 8-Bit Output Register
• Power Dissipation . . . 600 mW Typical
• Programmable Asynchronous Preset or Output Control
• Functionally Equivalent to, but Faster Than 82S105A

description

The TIB82S105BC is a TTL field-programmable state machine of the Mealy type. This state machine (logic sequencer) contains 48 product terms (AND terms) and 14 pairs of sum terms (OR terms). The product and sum terms are used to control the 6-bit internal state register and the 8-bit output register.

The outputs of the internal state register (P0-P5) are fed back and combined with the 16 inputs (I0-I15) to form the AND array. In addition a single sum term is complemented and fed back to the AND array, which allows any of the product terms to be summed, complemented, and used as an input to the AND array.

The state and output registers are positive-edge- triggered S/R flip-flops. These registers are unconditionally preset high during power up. Pin19 can be used to preset both registers or, by blowing the proper fuse, be converted to an output control function.

The TIB82S105BC is characterized for operation from 0°C to 75°C.

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