The SN54/74LS290 and SN54/74LS293 are high-speed 4-bit ripple type counters partitioned into two sections.
⢠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
|