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HD74LS247
BCD-to-Seven-Segment Decoder / Driver (with three-state outputs)
REJ03D0465–0300 Rev.3.00
Jul.15.2005
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 rippleblanking input / output controls and a lamp test input.
HD74LS247 Datasheet
