DM74LS503 Datasheet - National Semiconductor

DM74LS503 - 8-Bit Successive Approximation Register

The ’LS503 register is basically the same as the ’LS502 except that it has an active LOW Enable (E) input that is used in cascading two or more packages for longer word lengths A HIGH signal on E after a START operation forces Q7 HIGH and prevents the device from accepting serial data With the E inp

DM74LS503 Features

* Y Performs serial-to-parallel conversion Y Expansion control for longer words Y Storage and control for

DM74LS503-NationalSemiconductor.pdf