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SN74LS290 Datasheet

Part Number SN74LS290
Manufacturers ON Semiconductor
Logo ON Semiconductor
Description DECADE COUNTER
Datasheet SN74LS290 DatasheetSN74LS290 Datasheet (PDF)

  SN74LS290   SN74LS290
SN74LS290 DECADE COUNTER; 4-BIT BINARY COUNTER The SN54/74LS290 and SN54/74LS293 are high-speed 4-bit ripple type counters partitioned into two sections. Each counter has a divide-by-two section and either a divide-by-five (LS290) or divide-by-eight (LS293) section which are triggered by a HIGH-to-LOW transition on the clock inputs. Each section can be used separately or tied together (Q to CP)to form BCD, Bi-quinary, or Modulo-16 counters. Both of the counters have a 2-input gated Master Reset (Clear), and the LS290 also has a 2-input gated Master Set (Preset 9). • Corner Power Pin Versions of the LS90 and LS93 • Low Power Consumption . . . Typically 45 mW • High Count Rates . . . Typically 42 MHz • Choice of Counting Modes . . . BCD, Bi-Quinary, Binary • Input Clamp Diodes Limit High Speed Termination Effects CONNECTION DIAGRAM DIP (TOP VIEW) VCC MR MR CP1 CP0 Q0 Q3 14 13 12 11 10 9 8 LS290 NOTE: The Flatpak version has the same pinouts (Connection Diagram) as the Dual In-Line Pa.






Part Number SN74LS290
Manufacturers Texas Instruments
Logo Texas Instruments
Description DECADE AND 4-BIT BINARY COUNTERS
Datasheet SN74LS290 DatasheetSN74LS290 Datasheet (PDF)

  SN74LS290   SN74LS290
SN54290, SN54293, SN54LS290, SN54LS293 SN74290, SN74293, SN74LS290, SN74LS293 DECADE AND 4-BIT BINARY COUNTERS SDLS097 – MARCH 1974 – REVISED MARCH 1988 PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. •POST OFFICE BOX 655303 DALLAS, TEXAS 75265 Copyright © 1988, Texas Instruments Incorporated 1 SN54290, SN54293, SN54LS290, SN54LS293 SN74290, SN74293, SN74LS290, SN74LS293 DECADE AND 4-BIT BINARY COUNTERS SDLS097 – MARCH 1974 – REVISED MARCH 1988 •2 POST OFFICE BOX 655303 DALLAS, TEXAS 75265 SN54290, SN54293, S.






Part Number SN74LS290
Manufacturers Motorola
Logo Motorola
Description DECADE COUNTER 4-BIT BINARY COUNTER
Datasheet SN74LS290 DatasheetSN74LS290 Datasheet (PDF)

  SN74LS290   SN74LS290
DECADE COUNTER; 4-BIT BINARY COUNTER The SN54 / 74LS290 and SN54/ 74LS293 are high-speed 4-bit ripple type counters partitioned into two sections. Each counter has a divide-by-two section and either a divide-by-five (LS290) or divide-by-eight (LS293) section which are triggered by a HIGH-to-LOW transition on the clock inputs. Each section can be used separately or tied together (Q to CP)to form BCD, Bi-quinary, or Modulo-16 counters. Both of the counters have a 2-input gated Master Reset (Clear), and the LS290 also has a 2-input gated Master Set (Preset 9). • Corner Power Pin Versions of the LS90 and LS93 • Low Power Consumption . . . Typically 45 mW • High Count Rates . . . Typically 42 MH.






DECADE COUNTER

SN74LS290 DECADE COUNTER; 4-BIT BINARY COUNTER The SN54/74LS290 and SN54/74LS293 are high-speed 4-bit ripple type counters partitioned into two sections. Each counter has a divide-by-two section and either a divide-by-five (LS290) or divide-by-eight (LS293) section which are triggered by a HIGH-to-LOW transition on the clock inputs. Each section can be used separately or tied together (Q to CP)to form BCD, Bi-quinary, or Modulo-16 counters. Both of the counters have a 2-input gated Master Reset (Clear), and the LS290 also has a 2-input gated Master Set (Preset 9). • Corner Power Pin Versions of the LS90 and LS93 • Low Power Consumption . . . Typically 45 mW • High Count Rates . . . Typically 42 MHz • Choice of Counting Modes . . . BCD, Bi-Quinary, Binary • Input Clamp Diodes Limit High Speed Termination Effects CONNECTION DIAGRAM DIP (TOP VIEW) VCC MR MR CP1 CP0 Q0 Q3 14 13 12 11 10 9 8 LS290 NOTE: The Flatpak version has the same pinouts (Connection Diagram) as the Dual In-Line Package. 1234567 MS NC MS Q2 Q1 NC GND VCC MR MR CP1 CP0 Q0 Q3 14 13 12 11 10 9 8 http://onsemi.com DECADE COUNTER; 4-BIT BINARY COUNTER LOW POWER SCHOTTKY 14 1 14 1 14 1 J SUFFIX CERAMIC CASE 632-08 N SUFFIX PLASTIC CASE 646-06 D SUFFIX SOIC CASE 751A-02 LS293 1234567 NC NC NC Q2 Q1 NC GND ORDERING INFORMATION SN54LSXXXJ SN74LSXXXN SN74LSXXXD Ceramic Plastic SOIC PIN NAMES LOADING (Note a) CP0 CP1 CP1 MR1, MR2 MS1, MS2 Q0 Q1, Q2, Q3 Clock (Active LOW going edge) Input to ÷ 2 Section. .



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