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HD74HC4543

Part Number	HD74HC4543
Manufacturer	Hitachi Semiconductor
Description	BCD-to-Seven Segment Latch/Decoder/Driver
Published	Mar 23, 2005
Detailed Description	HD74HC4543 BCD-to-Seven Segment Latch/Decoder/Driver Description This circuit contains a 4-bit latch, BCD-to-7 segment ...
Datasheet	HD74HC4543 PDF File

Overview

HD74HC4543 BCD-to-Seven Segment Latch/Decoder/Driver Description This circuit contains a 4-bit latch, BCD-to-7 segment decoder, and 7 outpt drivers.
Data on the input pins flow through to the output when the Latch Disable (LE) is high and is latched on the high to low transition of the LE input.
The Phase input (Ph) controls the polarity of the 7 segment outputs.
when Ph is low the outputs are true 7 segment, and when Ph is high the outputs are inverted 7 segment.
When the Phase input is driven by a liquid crystal display (LCD) backplane waveform the segment pins output the correct segment waveform for proper LCD AC drive voltages.
In addition a Blanking input (BI) is provided, which will b...

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