7448 PDF Datasheet – BCD to 7-Segment Decoder, 16 Pin

Part Number : 7448

Function : Dcvice converts BCD input data into control signals for 7-segment displays

Package : DIP, SOP 16 Pin Type

Manufactures : Motorola, Texas Instruments

Images :

7448 datasheet pdf

 

Description :

This is BCD to 7-Segment Decoder.

The SN5448, 7448 is a BCD to 7-Segment Decoder consisting of NAND gates, input buffers and seven AND-OR-INVERT gates. Seven NAND gates and one driver are connected in pairs to make BCD data and its complement available to the seven decoding AND-OR-INVERT gates. The remaining
NAND gate and three input buffers provide lamp test, blanking input/rippleblanking input for the LS48.

The circuit accepts 4-bit binary-coded-decimal (BCD) and, depending on the state of the auxiliary inputs, decodes this data to drive other components. The relative positive logic output levels, as well as conditions required at the auxiliary inputs, are shown in the truth tables.

[…]

1 page
7448 image

Features :

1. Internal Pull-Ups Eliminate Need for External Resistors

2. Lamp-Test Provision

3. Leading / Trailing Zero Suppression

 

7448 Datasheet

74LS48 pdf

7448 pdf