초록 ▼

A programmable mixed-mode circuit (180) has both digital (215,217) and analog (120,120′,120″) circuit portions. The digital portion (215,217) is provided by programmable digital logic. The analog portion (120,120′,120″) has a variety of analog circuits, including voltage references (218), high-speed

A programmable mixed-mode circuit (180) has both digital (215,217) and analog (120,120′,120″) circuit portions. The digital portion (215,217) is provided by programmable digital logic. The analog portion (120,120′,120″) has a variety of analog circuits, including voltage references (218), high-speed comparators (208,209) and circuits (80) that are selectively configurable to provide operational amplifier or comparator functions. The analog circuits (122-125) are interconnected by programmable switch elements (128-131,160-167) so that the connection of the analog circuits to one another, to input or output pins (A0-A3,B0-B3,C0-C3) and to the digital circuitry (215,217) can be programmed.

대표청구항 ▼

A programmable device fabricated on a single semiconductor chip, comprising: a circuit having programmable distal logic states; at least one configurable analog circuit having an input and an output; and circuitry for selectively configuring the at least one analog circuit in accordance with the pro

A programmable device fabricated on a single semiconductor chip, comprising: a circuit having programmable distal logic states; at least one configurable analog circuit having an input and an output; and circuitry for selectively configuring the at least one analog circuit in accordance with the programmable digital logic states and, wherein said circuit has said programmable digital logic states being user programmable, wherein said programmable device further comprises circuitry connected to said circuit having programmable digital logic states to preset the digital logic states into a known state on power-up.