54LS290 - Motorola

54LS290 4-BIT BINARY COUNTER

The LS290 and LS293 are 4-bit ripple type Decade, and 4-Bit Binary counters respectively. Each device consists of four master / slave flip-flops which are internally connected to provide a divide-by-two section and a divide-by-five (LS290) or divide-by-eight (LS293) section. Each section has a separate clock input which initiates state changes of the counter.

Features

1234567 MS NC MS Q2 Q1 NC GND VCC MR MR CP1 CP0 Q0 Q3 14 13 12 11 10 9 8 LS293 SN54/74LS290 SN54/74LS293 DECADE COUNTER; 4-BIT BINARY COUNTER LOW POWER SCHOTTKY 14 1 J SUFFIX CERAMIC CASE 632-08 14 1 14 1 N SUFFIX PLASTIC CASE 646-06 D SUFFIX SOIC CASE 751A-02 ORDERING INFORMATION SN54LSXXXJ SN74LSXXXN SN74LSXXXD Ceramic Plastic SOIC 1234567 NC NC NC Q2 Q1 NC GND 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. Clock (Active LOW going edge) Input to ÷ 5 Section (LS290). Clock (Active LOW going edge) Inpu.