SN74LS247

SN74LS247 BCD−to−Seven−Segment Decoders/Drivers The SN74LS247 is a BCD-to-Seven-Segment Decoder/Drivers. The LS247 composes the and with the tails. The LS247 has active-low outputs for direct drive of indicators. The LS247 features a lamp test input and have full ripple-blanking input/output controls. An automatic leading and/or trailing-edge zero-blanking control (RBI and RBO) is incorporated and an overriding blanking input (BI) is contained which may be used to control the lamp intensity by pulsing or to inhibit the output’s lamp test may be performed at any time when the BI/RBO node is at high level. Segment identification and resultant displays are shown below. Display pattern for BCD input counts above 9 are unique symbols to authenticate input conditions. Open-Collector Outputs Drive Indicators Directly Lamp-Test Provision Leading/ Trailing Zero Suppression GUARANTEED OPERATING RANGES Symbol Parameter Min Typ Max Unit VCC Supply Voltage TA Operating Ambient Temperature Range 4.75 5.0 5.25 V 0 25 70 °C IOH Output Current − High BI/RBO −50 mA IOL Output Current − Low BI/RBO 3.2 mA VO(off) Off−State Output Voltage a−g 15 V IO(on) On−State Output Current a−g 24 mA http://onsemi.com LOW POWER SCHOTTKY 16 1 PLASTIC N SUFFIX CASE 648 16 1 SOIC D SUFFIX CASE 751B ORDERING INFORMATION Device Package Shipping SN74LS247N 16 Pin DIP 2000 Units/Box SN74LS247D SOIC−16 38 Units/Rail SN74LS247DR2 SOIC−16 2500/Tape & Reel © Semiconducto...