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HEF4543B

nexperia
Part Number HEF4543B
Manufacturer nexperia
Description BCD to 7-segment latch/decoder/driver
Published Jul 24, 2019
Detailed Description HEF4543B BCD to 7-segment latch/decoder/driver Rev. 8 — 24 November 2021 Product data sheet 1. General description The...
Datasheet PDF File HEF4543B PDF File

HEF4543B
HEF4543B

Overview
HEF4543B BCD to 7-segment latch/decoder/driver Rev.
8 — 24 November 2021 Product data sheet 1.
General description The HEF4543B is a BCD to 7-segment latch/decoder/driver for liquid crystal and LED displays.
It has four address inputs (D0 to D3), an active LOW latch enable input (LE), an active HIGH blanking input (BL), an active HIGH phase input (PH) and seven buffered segment outputs (Qa to Qg).
The circuit provides the function of a 4-bit storage latch and an 8-4-2-1 BCD to 7-segment decoder/driver.
It can invert the logic levels of the output combination.
The phase (PH), blanking (BL) and latch enable (LE) inputs are used to reverse the function table phase, blank the display and store a BCD code, respectively.
For liquid crystal displays, a square-wave is applied to PH and the electrical common back-plane of the display.
The outputs of the device are directly connected to the segments of the liquid crystal.
It operates over a recommended VDD power supply range of 3 V to 15 V ref...


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