7448 BCD to 7-Segment Decoder (Common Cathode) (74HC48/74LS48)

Description

7448 IC BCD to 7-Segment Decoder DIP-16 The IC 7448 converts a 4-bit BCD input (binary-coded decimal) into signals that directly control a common-cathode 7-segment display. It provides seven active-HIGH outputs (a–g) that light up individual segments to display decimal numbers from 0 to 9. Inputs from 1010 to 1111 result in blank or undefined outputs. This IC includes additional features such as lamp test (LT), blanking input (BI), and ripple-blanking input/output (RBI/RBO), which enhance multi-digit display control and testing. Engineers often use it to drive digital readouts in counters, clocks, meters, and automation systems. The active-HIGH outputs make it suitable for common-cathode displays, where segment pins connect to GND. You can easily connect the 7448 to binary counters or microcontroller outputs. It handles logic conversion and segment driving without needing extra software or logic components. The IC integrates smoothly with other TTL devices and standard 5V logic systems. Key Features Converts 4-bit BCD into 7-segment active-HIGH outputs Designed for common-cathode LED displays Supports lamp test, blanking, and ripple-blanking TTL-compatible input and output levels No need for external logic or conversion circuits Packaged in DIP-16 or SOIC-16 form factors Easy cascading for multi-digit display systems Applications Drive 7-segment displays with simple BCD logic inputs. Display decimal numbers in counters and time displays. Control LED digits in meters, clocks,