BCD-to-Seven-Segment Decoder / Driver

The HD74LS247 is electrically and functionally identical to the HD74LS47 respectively, and has the same pin assignments as its equivalents. It CAN be used interchangeably in present or future designs to offer designers a choice between two indicator fonts. The HD74LS47 composes the 6 and the 9 without tails and the HD74LS247 composes the 6 and the 9 with tails. Composition of all other characters, including Display patterns for BCD inputs above nine, is identical. The HD74LS247 features active-low outputs designed for driving indicators directly. All of the circuits have full ripple- blanking input / output controls and a lamp test input. By Renesas Technology