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HCC40147B - 10 TO 4 LINE BCD PRIORITY ENCODER

Datasheet Summary

Description

The HCC/HCF40147B CMOS encoder

Features

  • priority encoding of the inputs to ensure that only the highest order data line is encoded. Ten data input lines (0-9) are encoded to four line (8, 4, 2, 1) BCD. The highest priority line is line 9. All four output lines are logic 1 (VSS) when all input lines are logic 0. All inputs and outputs are buffered, and each output can drive one TTL Low Power Schottky load. The HCC/HCFF40147 is functionally similar to the T54/T74LS147 if pin 15 is tied low. The HCC/HCF40147B types are supplied in 16 lea.

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Datasheet Details

Part number HCC40147B
Manufacturer STMicroelectronics
File Size 275.85 KB
Description 10 TO 4 LINE BCD PRIORITY ENCODER
Datasheet download datasheet HCC40147B Datasheet
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Full PDF Text Transcription

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HCC40147B HCF40147B 10 TO 4 LINE BCD PRIORITY ENCODER . . . . . . . . . . ENCODES 10 LINE TO 4 LINE BCD ACTIVE LOW INPUTS AND OUTPUTS STANDARDIZED, SYMMETRICAL OUTPUT CHARACTERIZATION 100 % TESTED FOR QUIESCENT CURRENT AT 20 V 5V, 10V AND 15V PARAMETRIC RATINGS MAXIMUM INPUT CURREENT OF 1 µA AT 18V OVER FULL PACKAGE TEMPERATURE o RANGE; 100 nA AT 18 V AND 25 C NOISE MARGIN (FULL PACKAGE TEMPERATURE RANGE): 1V AT VDD = 5V, 2V AT VDD = 10V, 2.
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