GB1410627A - Binary frequency divider circuit - Google Patents
Binary frequency divider circuitInfo
- Publication number
- GB1410627A GB1410627A GB5371072A GB5371072A GB1410627A GB 1410627 A GB1410627 A GB 1410627A GB 5371072 A GB5371072 A GB 5371072A GB 5371072 A GB5371072 A GB 5371072A GB 1410627 A GB1410627 A GB 1410627A
- Authority
- GB
- United Kingdom
- Prior art keywords
- goes
- turns
- become
- make
- frequency divider
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/353—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of field-effect transistors with internal or external positive feedback
- H03K3/356—Bistable circuits
- H03K3/356104—Bistable circuits using complementary field-effect transistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K21/00—Details of pulse counters or frequency dividers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
- H03K23/002—Pulse counters comprising counting chains; Frequency dividers comprising counting chains using semiconductor devices
Landscapes
- Logic Circuits (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Abstract
1410627 FET logic divider circuit CENTRE ELECTRONIQUE HORLOGER SA 21 Nov 1972 [22 Nov 1971] 53710/72 Heading H3T A logic circuit Fig. 9 works as a binary frequency divider and includes three complementary F.E.T. stages at least one having an output E which is permitted to float under certain conditions. It may also be selectively connected to the power terminals by F.E.T.s 5, 9 or 8, 10. An input signal I and internally generated signals A, D, F interact as follows. Assuming I, E to be 0 and A, D, F to be 1, then when I goes to 1 F.E.T. 12 terms on and conducts through F.E.T. 10 which is held on by A to make D go to 0. This turns on F.E.T. 9, and when I returns to 0, F.E.T. 5 goes on and E is connected to the positive terminal through 5, 9 so that E and F become 1. When I goes to 1 again, F.E.T. 2 turns on and since E holds on F.E.T.4, A is earthed to become 0. A being 0 turns on F.E.T. 13 and D becomes 1. When I again, goes to 0, F.E.T.1 turns on to make A become I, and A and D hold on F.E.T.s 10, 8 respectively to make E become 0 again, this being the assumed starting condition. Capacitors CA, CD, CE, CF provide the storage needed for dynamic operation. A static circuit is disclosed (Fig. 8, not shown) from which the Fig. 9 dynamic cicuit is said to be derived by deletion of F.E.T.s shown to be unnecessary by the truth table.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1696671A CH561986A5 (en) | 1971-11-22 | 1971-11-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1410627A true GB1410627A (en) | 1975-10-22 |
Family
ID=4421727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5371072A Expired GB1410627A (en) | 1971-11-22 | 1972-11-21 | Binary frequency divider circuit |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS532314B2 (en) |
CA (1) | CA976622A (en) |
CH (1) | CH561986A5 (en) |
DE (1) | DE2257256C3 (en) |
FR (1) | FR2162981A5 (en) |
GB (1) | GB1410627A (en) |
NL (1) | NL7215836A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2213008A (en) * | 1987-11-30 | 1989-08-02 | Plessey Co Plc | D-type flip-flop |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH583483A5 (en) * | 1975-09-17 | 1976-12-31 | Centre Electron Horloger |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3493786A (en) * | 1967-05-02 | 1970-02-03 | Rca Corp | Unbalanced memory cell |
US3573507A (en) * | 1968-09-11 | 1971-04-06 | Northern Electric Co | Integrated mos transistor flip-flop circuit |
US3577166A (en) * | 1968-09-17 | 1971-05-04 | Rca Corp | C-mos dynamic binary counter |
US3560998A (en) * | 1968-10-16 | 1971-02-02 | Hamilton Watch Co | Electronically controlled timepiece using low power mos transistor circuitry |
BE757117R (en) * | 1969-10-31 | 1971-03-16 | Centre Electron Horloger | DIVIDER CIRCUIT |
US3609406A (en) * | 1970-02-16 | 1971-09-28 | Electronic Arrays | Integrated circuit inverter |
-
1971
- 1971-11-22 CH CH1696671A patent/CH561986A5/xx not_active IP Right Cessation
-
1972
- 1972-11-21 FR FR7241341A patent/FR2162981A5/fr not_active Expired
- 1972-11-21 CA CA157,076A patent/CA976622A/en not_active Expired
- 1972-11-21 GB GB5371072A patent/GB1410627A/en not_active Expired
- 1972-11-22 JP JP11670672A patent/JPS532314B2/ja not_active Expired
- 1972-11-22 DE DE19722257256 patent/DE2257256C3/en not_active Expired
- 1972-11-22 NL NL7215836A patent/NL7215836A/xx unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2213008A (en) * | 1987-11-30 | 1989-08-02 | Plessey Co Plc | D-type flip-flop |
GB2213008B (en) * | 1987-11-30 | 1992-01-29 | Plessey Co Plc | Improvements in or relating to flip-flops |
Also Published As
Publication number | Publication date |
---|---|
CH561986A5 (en) | 1975-05-15 |
DE2257256B2 (en) | 1977-03-03 |
DE2257256A1 (en) | 1973-06-20 |
DE2257256C3 (en) | 1983-12-22 |
FR2162981A5 (en) | 1973-07-20 |
NL7215836A (en) | 1973-05-24 |
JPS4860571A (en) | 1973-08-24 |
JPS532314B2 (en) | 1978-01-26 |
CA976622A (en) | 1975-10-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE20 | Patent expired after termination of 20 years |