HEF4543B(2016) 데이터 시트보기 (PDF) - NXP Semiconductors.

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HEF4543B
(Rev.:2016)

BCD to 7-segment latch/decoder/driver

NXP Semiconductors. 

HEF4543B

BCD to 7-segment latch/decoder/driver

Rev. 7 — 1 April 2016

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 referenced to VSS

(usually ground). Unused inputs must be connected to VDD, VSS, or another input.

2. Features and benefits

 Fully static operation

 5 V, 10 V, and 15 V parametric ratings

 Standardized symmetrical output characteristics

 Specified from 40 C to +85 C

 Complies with JEDEC standard JESD 13-B

3. Ordering information

Table 1. Ordering information

All types operate from 40 C to +85 C

Type number

Package

Name

Description

HEF4543BT

SO16

plastic small outline package; 16 leads; body width 3.9 mm

Version

SOT109-1

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