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2010-12-08T19:07:22+01:00
2010-11-17T15:37:04Z
2010-12-08T19:07:22+01:00
Jouve S.A., EPO - Publication - KB, TaggedPDF v1.27
EP-0237322-A3-19890705
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EP-0237322-A3-19890705
A latch circuit having two complementary hold loops for improved noise tolerance.The latch circuit includes a first gate (G11, G16) receiving data (D) and a first clock signal (CL), for outputting at least one signal gating the data and the first clock signal in response to a change in the clock signal; a second gate (G12, G15) receiving a second clock signal having an inverted polarity to that of the first clock signal; and a third gate (G13, G14); and operatively connected to output terminals of the first and second gates, for outputting at least one latch output (SQ). The latch circuit also includes a first hold line (HL1) supplying the latch output to the second gate and a second hold line (HL2) supplying another latch output of the latch circuit having an inverted polarity to that of the latch output to the second gate. The second gate may have an inverted input terminal receiving the other latch output.The second gate may include a differential operation gate circuit operating in response to a signal on the first hold line and a signal on the second hold line.The latch circuit may be an "in-phase" hold type latch circuit or an "inverted-phase" hold type latch circuit.
A latch circuit having two complementary hold loops for improved noise tolerance.The latch circuit includes a first gate (G11, G16) receiving data (D) and a first clock signal (CL), for outputting at least one signal gating the data and the first clock signal in response to a change in the clock signal; a second gate (G12, G15) receiving a second clock signal having an inverted polarity to that of the first clock signal; and a third gate (G13, G14); and operatively connected to output terminals of the first and second gates, for outputting at least one latch output (SQ). The latch circuit also includes a first hold line (HL1) supplying the latch output to the second gate and a second hold line (HL2) supplying another latch output of the latch circuit having an inverted polarity to that of the latch output to the second gate. The second gate may have an inverted input terminal receiving the other latch output.The second gate may include a differential operation gate circuit operating in response to a signal on the first hold line and a signal on the second hold line.The latch circuit may be an "in-phase" hold type latch circuit or an "inverted-phase" hold type latch circuit.
en
European Patent Office
EP0237322
EP 0237322
H03K 19/20
H03K 03/03
H03K 03/288
H03K 03/037
Latch circuit
Latch circuit - European Patent Office - EP 0237322 A3
Latch circuit - European Patent Office - EP 0237322 A3
Adobe PDF Library 8.0
"EP0237322"; "EP 0237322"; "H03K 19/20"; "H03K 03/03"; "H03K 03/288"; "H03K 03/037"; "Latch circuit"
1.4
1
B
2
EP
0237322
A3
1989-07-05
87302040
1987-03-10
JP
5136986
1986-03-11
H03K 19/20
H03K 03/03
H03K 03/288
H03K 03/037
FUJITSU LIMITED
Tsunoi, Hiroyuki
Kanai, Yasunori
Sugiyama, Eiji
Seto, Motohiro
Ando, Naoyuki
Billington, Lawrence Emlyn et al
Latch circuit
Halteschaltung
Latch circuit
Bascule de verrouillage
A latch circuit having two complementary hold loops for improved noise tolerance.The latch circuit includes a first gate (G11, G16) receiving data (D) and a first clock signal (CL), for outputting at least one signal gating the data and the first clock signal in response to a change in the clock signal; a second gate (G12, G15) receiving a second clock signal having an inverted polarity to that of the first clock signal; and a third gate (G13, G14); and operatively connected to output terminals of the first and second gates, for outputting at least one latch output (SQ). The latch circuit also includes a first hold line (HL1) supplying the latch output to the second gate and a second hold line (HL2) supplying another latch output of the latch circuit having an inverted polarity to that of the latch output to the second gate. The second gate may have an inverted input terminal receiving the other latch output.The second gate may include a differential operation gate circuit operating in response to a signal on the first hold line and a signal on the second hold line.The latch circuit may be an "in-phase" hold type latch circuit or an "inverted-phase" hold type latch circuit.
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