DatasheetsPDF.com

7447

ETC
Part Number 7447
Manufacturer ETC
Description 7-Segment Display Decoder
Published Oct 16, 2019
Detailed Description Digital Electronics Outputs 16 15 14 Vcc f g 13 12 11 10 ab c d 9 e 7447 7-Segment Display Decoder BI/ B C LT RBO R...
Datasheet PDF File 7447 PDF File

7447
7447

Overview
Digital Electronics Outputs 16 15 14 Vcc f g 13 12 11 10 ab c d 9 e 7447 7-Segment Display Decoder BI/ B C LT RBO RBI D A GND 12345 678 Dr.
McLean a fb g ec d Input Binary Coded Decimal: DCBA Inputs Inputs Decimal or Inputs BI/RBO Outputs Function LT RB D C B A abcde f g I 0 110000 1 ON ON ON ON ON ON OFF 1 1 any 0 0 0 1 1 OFF ON ON OFF OFF OFF OFF 2 1 any 0 0 1 0 1 ON ON OFF ON ON OFF ON 3 1 any 0 0 1 1 1 ON ON ON ON OFF OFF ON 4 1 any 0 1 0 0 1 OFF ON ON OFF OFF ON ON 5 1 any 0 1 0 1 1 ON OFF ON ON OFF ON ON 6 1 any 0 1 1 0 1 OFF OFF ON ON ON ON ON 7 1 any 0 1 1 1 1 ON ON ON OFF OFF OFF OFF 8 1 any 1 0 0 0 1 ON ON ON ON ON ON ON 9 1 any 1 0 0 1 1 ON ON ON OFF OFF ON ON 10 1 any 1 0 1 0 1 OFF OFF OFF ON ON OFF ON 11 1 any 1 0 1 1 1 OFF OFF ON ON OFF OFF ON 12 1 any 1 1 0 0 1 OFF ON OFF OFF OFF ON ON 13 1 any 1 1 0 1 1 ON OFF OFF ON OFF ON ON 14 1 any 1 1 1 0 1 OFF OFF OFF ON ON ON ON 15 1 any 1 1 1 1 1 OFF OFF OFF OFF OFF OFF OFF BI any any any any any any 0 OFF OFF OFF OFF OFF OFF OFF RBI 1 0 0 0 0 0 0 OFF OFF OFF OFF OFF OFF OFF LT 0 any any any any any 1 ON ON ON ON ON ON ON Notes: 1.
BI must be high when output functions 0 through 15 are desired.
RBI must be high if blanking of a decimal zero is not desired.
2.
If BI is low, all 7 segments are off, regardless of any other inputs (such as A, B, C, or D).
3.
The RBO is typically high.
If A, B, C, D, and RBI are all low, and the lamp test (LT) is high, then all 7 segments are off.
In this situation, the RBO goes low.
4.
If BI is high, and LT is low, all 7 segments are on.
This function can be used to see if all the LED segments are working.
5.
Note that the BI and RBO share pin #4.
It is both an input and an output.
...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)