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Class Information
Number: 326/71
Name: Electronic digital logic circuitry > Interface (e.g., current drive, level shift, etc.) > Logic level shifting (i.e., interface between devices of different logic families) > Field-effect transistor (e.g., jfet, mosfet, etc.) > Ttl to/from mos > Ttl to/from cmos
Description: Subject matter comprising the interfacing between a transistor-transistor logic device and a complementary MOS device.

Sub-classes under this class:

Class Number Class Name Patents
326/72 Using depletion or enhancement transistors 16

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7868666 Low-quiescent-current buffer Jan. 11, 2011
7652505 Level conversion circuit for converting voltage amplitude of signal Jan. 26, 2010
7598950 Display control device with multipurpose output driver Oct. 6, 2009
7554361 Level shifter and method thereof Jun. 30, 2009
7336100 Single supply level converter Feb. 26, 2008
7038491 Level shifter for wide range operation May. 2, 2006
6721212 Memory control circuit and control system for a plurality of memories interconnected via plural logic interfaces Apr. 13, 2004
6456120 Capacitor-coupling differential logic circuit Sep. 24, 2002
6411140 Method and apparatus for reducing skew between input signals and clock signals within an integrated circuit Jun. 25, 2002
6307396 Low-consumption TTL-CMOS input buffer stage Oct. 23, 2001
6236236 2.5 volt input/output buffer circuit tolerant to 3.3 and 5 volts May. 22, 2001
6232803 Tightly controlled output level CMOS-PECL driver May. 15, 2001
6097216 Integrated buffer circuits having improved noise immunity and TTL-to-CMOS signal conversion capability Aug. 1, 2000
6091264 Schmitt trigger input stage Jul. 18, 2000
6069492 Voltage compensating CMOS input buffer circuit May. 30, 2000
6064226 Multiple input/output level interface input receiver May. 16, 2000
6040714 Method for providing two modes of I/O pad termination Mar. 21, 2000
5986472 Voltage level translation for an output driver system with a bias generator Nov. 16, 1999
5955893 Power saving buffer circuit buffer bias voltages Sep. 21, 1999
5945844 Threshold voltage scalable buffer with reference level Aug. 31, 1999
5905386 CMOS SONET/ATM receiver suitable for use with pseudo ECL and TTL signaling environments May. 18, 1999
5883528 Five volt tolerant TTL/CMOS and CMOS/CMOS voltage conversion circuit Mar. 16, 1999
5880601 Signal receiving circuit and digital signal processing system Mar. 9, 1999
5872464 Input buffer with stabilized trip points Feb. 16, 1999
5861763 Threshold voltage scalable buffer with reference level Jan. 19, 1999
5751166 Input buffer circuit and method May. 12, 1998
5731713 TTL to CMOS level translator with voltage and threshold compensation Mar. 24, 1998
5703500 Threshold voltage scalable buffer with reference level Dec. 30, 1997
5654664 Input buffer circuit for a semiconductor memory Aug. 5, 1997
5633602 Low voltage CMOS to low voltage PECL converter May. 27, 1997
5612635 High noise-margin TTL buffer circuit capable of operation with wide variation in the power supply voltage Mar. 18, 1997
5602496 Input buffer circuit including an input level translator with sleep function Feb. 11, 1997
5602495 Apparatus for providing an output voltage with substantially identical rising and falling characteristics Feb. 11, 1997
5600267 Apparatus for a programmable CML to CMOS translator for power/speed adjustment Feb. 4, 1997
5589783 Variable input threshold adjustment Dec. 31, 1996
5559461 Drive circuit detecting slow signal transition Sep. 24, 1996
5557219 Interface level programmability Sep. 17, 1996
5541533 Output circuit for an TTL-CMOS integrated circuit Jul. 30, 1996
5532620 Input buffer circuit capable of corresponding to variation of operating voltage in semiconductor integrated circuit Jul. 2, 1996
5525914 CMOS driver circuit Jun. 11, 1996
5517131 TTL input buffer with on-chip reference bias regulator and decoupling capacitor May. 14, 1996
5502405 Method and apparatus for CML/EC to CMOS/TTL translators Mar. 26, 1996
5486778 Input buffer for translating TTL levels to CMOS levels Jan. 23, 1996
5471149 High-speed large output amplitude voltage level shifting circuit Nov. 28, 1995
5469080 Low-power, logic signal level converter Nov. 21, 1995
5467044 CMOS input circuit with improved supply voltage rejection Nov. 14, 1995
5440248 Power-saver differential input buffer Aug. 8, 1995
5438280 Input circuit receiving input signal of TTL level Aug. 1, 1995
5418477 Data output buffer pull-down circuit for TTL interface May. 23, 1995
5406139 Input buffer utilizing a cascode to provide a zero power TTL to CMOS input with high speed switching Apr. 11, 1995

1 2 3

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