Matches 601 - 650 out of 738 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >
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5952849 Logic isolator with high transient immunity  
A logic isolation circuit with high transient immunity has a link-coupled transformer assembly for providing isolation. An input circuit provides pulses that indicate rising and falling edges, and...
5936429 Interface circuit and method for transmitting binary logic signals with reduced power dissipation  
An interface circuit and method for transmitting a binary logic signal from a first electronic circuit to a second electronic circuit over a transmission line coupled to said first electronic...
5936423 Semiconductor IC with an output circuit power supply used as a signal input/output terminal  
An object of the present invention is to decrease the number of terminals of a semiconductor integrated circuit by utilizing one terminal for a plurality of purposes, and reduce the cost of it,...
5929655 Dual-purpose I/O circuit in a combined LINK/PHY integrated circuit  
A dual-purpose I/O circuit for use in an integrated circuit having a primary circuit is provided. The dual-purpose I/O circuit includes two conducting pads, two single-ended I/O cells and one...
5926050 Separate set/reset paths for time critical signals  
A digital system includes apparatus for propagating falling and rising edges of a digital signal through two separate data paths each optimized to maximize propagation of one edge of the signal....
5926049 Low power CMOS line driver with dynamic biasing  
A low power line driver uses a dynamic biasing scheme together with single ended architecture to achieve low power, fast speed and high return loss. The line driver includes a first and second...
5923186 Two state bi-directional bus  
The present invention discloses a bi-directional bus system including one or more junction circuits and a plurality of logic blocks wherein each logic block includes circuitry for transmitting and...
5917340 Twisted-pair driver with staggered differential drivers and glitch free binary to multi level transmit encoder  
A twisted-pair current driver is implemented in CMOS. EMI from sharp changes in the current driven is reduced by gradually changing the current driven when the inputs change. The current driver is...
5903168 Switchable MCM CMOS I/O buffers  
A switchable I/O buffer for multi-chip modules comprising a conventional I/O buffer and a miniaturized I/O buffer. A path switch selects the conventional I/O buffer or the minaturized I/O buffer...
5900770 Variable loading apparatus for output loading of integrated circuits  
A computer circuit comprising a driver circuit and a variable loading circuit coupled to the driver circuit. The variable loading circuit is configured to provide a first capacitive load to the...
5886539 Communication within an integrated circuit by data serialization through a metal plane  
A circuit for communicating between structures of an integrated circuit through a metallized layer is provided in which parallel data bits are bundled into serial data packages, serialized and sent...
5880596 Apparatus and method for configuring integrated circuit option bits with different bonding patterns  
Disclosed is an integrated circuit design and method which provides optional configurations depending upon the connection of optional bond wires. The design retains the flexibility of the IC's mode...
5880607 Clock distribution network with modular buffers  
A n level clock distribution network for a datapath block includes an external buffer that outputs a clock signal and a datapath block having a logic block and a buffer block containing one or more...
5881076 Comparator utilizing redundancy  
A method and apparatus for comparing two N-bit digital numbers. The N bits from the two numbers are inputs to a comparator. In addition, a parity bit from each number is an input to the comparator....
5878082 Data communication device for implementing accurate data communication  
An ECU for executing serial communication via a transmission line has a driver circuit. The driver circuit includes an integrator for integrating a transmission signal and a power source for...
5874833 True/complement output bus for reduced simulataneous switching noise  
A true/complement integrated circuit device is disclosed for reducing an amount of simultaneous switching on a bus between a current state and a next state. The device includes a current state...
5874837 CMOS PECL driver with programmable current for varying voltage swings and termination types  
A differential-output current driver is constructed entirely of CMOS transistors. Pseudo-ECL levels are reached when a standard resistive termination is connected to the outputs. The current driver...
5859545 Bidirectional buffer  
A buffer circuit for use between a two-way open-collector bus line and a device capable of reading the status of the bus line and driving it low. The device has a single input/output terminal to...
5847580 High speed bidirectional bus with multiplexers  
A multiplexer chain is coupled to two logic gates which in turn propagate their respective output signals in different directions, thereby providing bidirectional signal distribution. The output...
5838722 Monolithic transceiver including feedback control  
A new improved all monolithic transceiver may be manufactured on a single semiconductor die for operation from a single +5 v power supply. The transceiver includes a transmitter of novel design...
5838186 Signal output circuit with reduced noise in output signal  
An additional MOS transistor receiving at its control electrode a signal complementary to that applied to control electrodes of MOS transistors is provided between a power supply node and a control...
5828308 Current sensing circuit formed in narrow area and having sensing electrode on major surface of semiconductor substrate  
A current sensing circuit is provided for a current driving transistor to see whether or not excess current flows into an external load, a vertical transistor serves as the current driving...
5825207 Output buffer circuit  
An output buffer circuit includes first and second transistors of a first conductivity type, having first terminals connected in common and second terminals connected to first and second power...
5825215 Output buffer circuit  
An output buffer circuit of the present invention comprises a first input terminal receiving a first input signal, a second input terminal receiving a second input signal, a control input terminal...
5821777 Current amplifier and data bus circuit  
There is provided a current amplifier and a data bus circuit using such a current amplifier capable of reducing input impedance with a smaller circuit area than the conventional so that high-speed...
5821798 Method for determining whether bi-directional or unidirectional data line circuits are used  
To increase compatibility, a method is used to determine whether a bidirectional or a unidirectional data line circuit is connected to an interface circuit. A first logic level is generated on a...
5808477 Circuit for detection and protection against short circuits for digital outputs  
A sense and protection circuit against short circuits for digital outputs, comprising a logic gating circuit of the exclusive OR type (EX1) which has a first input terminal connected to a signal...
5804987 LSI chip having programmable buffer circuit  
An LSI chip is mounted on an LSI board. Sub-buffer circuit areas where input buffers, output buffers or input/output buffers are to be formed are provided in signal lines extending from the pad to...
5789943 V.35 network terminator  
A V.35 compliant driver is disclosed. The driver has three operational modes: OFF, low power (approximately 1/3 full power), and full power. The driver is placed in an appropriate mode based on...
5789944 Asynchronous anticontention logic for bi-directional signals  
An asynchronous anticontention circuit for a bi-directional bus. The asynchronous anticontention circuit comprises an anticontention circuit coupled to an asynchronous delay circuit. The...
5777497 CMOS output circuit with precharge circuit  
A CMOS circuit includes an output unit for receiving an enable signal and an input data and producing an output signal. A transmission gate unit receives a precharge signal and the output signal...
5767701 Synchronous contention prevention logic for bi-directional signals  
A synchronous contention prevention circuit for a bi-directional bus. The synchronous contention prevention circuit comprises a synchronous anticontention circuit coupled to a first input/output...
5751978 Multi-purpose peripheral bus driver apparatus and method  
An output driver (10) for a bus interface and associated method of operation. The output driver (10) comprises a first driver circuit (12), a second driver circuit (14), and a controller (16). The...
5739701 Input/output buffer circuit having reduced power consumption  
There are provided an input/output buffer circuit having a reduced power consumption, and an electronic equipment using these buffer circuits. An input buffer is located on an input line while an...
5736867 Method and circuit for reconfiguring a buffer  
A reconfigurable buffer circuit capable of producing an active high or an active low output signal in accordance with a stored control parameter that is input to the buffer circuit. The...
5734334 Programmable port for crossbar switch  
An electronic crossbar switch employs a switch array for selectively routing digital and analog signals between its terminals. A separate port for each terminal provides a path for digital and...
5708373 Boost circuit  
When input signal IN rises to an "H" level, node N1 attain an "H" level, and output terminal OUT is charged to a level of VCC-V TH by n channel transistor. Capacitor is charged by the "H" level...
5694057 System for enhanced drive in programmable gate arrays  
In a programmable gate array ("PGA"), logic cells therein are programmed to create a combined output with enhanced current driving ability. Specifically, a first logic cell is programmed to have a...
5684412 Cell forming part of a customizable logic array  
A cell forming part of a customizable logic array and including at least first and second different multiplexers, an output of the first multiplexer being connected to an input of the second...
5677639 Autonomous selection of output buffer characteristics as determined by load matching  
A mechanism determines at least an approximation of output load coupled to a programmable output buffer, and then programs the buffer to source/sink an amount of output current appropriate to the...
5668482 Bus maintenance circuit  
A maintenance circuit for a bus (1) with a tristate driver (2) which includes a keeper circuit (3) having a first inverting logic gate (4) with an input connected to the bus (1) and a second...
5661415 Output buffer circuit with logic gate control circuitry  
The present invention has the object of improving operation speed and operation margin for a GTL driver. An output buffer circuit is of push-pull construction using N-channel MOS transistors MN11...
5656952 All-MOS differential high speed output driver for providing positive-ECL levels into a variable load impedance  
According to embodiments of the present invention, a driver circuit, has first and second reference voltage rails for receiving first and second reference voltages, has first and second inputs for...
5656947 Low noise digital output buffer  
A digital output buffer uses an RC delay line having more than one resistor and capacitor as a shaping circuit which drives an operational amplifier configured as voltage follower that drives an...
5631588 Power output stage with limited current absorption during high-impedance phase  
A power stage of quasi-complementary symmetry, including a common-source FET and a common-drain FET, with a reduced absorption of current under the conditions of high impedance of the output. The...
5629635 Address programming via LED pin  
An LED driver pin which can be used for programming a memory element in a first mode, and can be used for driving the LED in a second mode is provided. The invention includes the pin and the LED...
5627480 Tristatable bidirectional buffer for tristate bus lines  
The direction of a bidirectional buffer inserted along a bus line is dynamically controlled to be always away from the signal source. The signals which select a tristate buffer to turn on for...
5612634 Circuit for sensing whether or not an add-in board is inserted into a bus connector of a mother board  
In an environment where a contact of a mother board is connected to a logic HIGH level voltage through a strong pull-up resistor, and a corresponding contact of an add-in board is connected to an...
5608339 Device for driving a LED display  
A device for driving a load controllable by current capable of increasing speed to turn on an output stage transistor is provided. The device includes: (a) a power source terminal; (b) a switching...
5604450 High speed bidirectional signaling scheme  
In a computer system having multiple components, a bidirectional scheme which allows bidirectional data communications between components over a single wire without using termination resistors by...
Matches 601 - 650 out of 738 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >