BCD-to-Seven-Segment Decoder / DriverThe HD74LS248 is electrically and functionally identical to the HD74LS48 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 HD74LS48 composes the 6 and the 9 without tails and the HD74LS248 composes the
6 and the 9 with tails. Composition of all other characters, including Display patterns for BCD inputs above nine, is
identical. The HD74LS248 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. Segment identification and resultant Displays are
shown below. Display patterns for BCD input count above 9 are unique symbols to authenticate input conditions. This
circuit incorporates Automatic leading and / or trailing-edge zero-blanking control (RBI and RBO). By Renesas Technology
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HD74LS248 Pb-Free | HD74LS248 Cross Reference | HD74LS248 Schematic | HD74LS248 Distributor |
HD74LS248 Application Notes | HD74LS248 RoHS | HD74LS248 Circuits | HD74LS248 footprint |