SN74LS247 - BCD-to-Seven-Segment Decoders/Drivers
SN74LS247 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’
