PCF8545ATT datasheet(13/50 Pages) NXP

13 / 50 page

NXP Semiconductors

PCA8561

Automotive 18 × 4 LCD segment driver

7-segment with dot

14-segment with dot and accent

013aaa312

dot matrix

Figure 8. Example of displays suitable for PCA8561

Number of

Digits/Characters

Backplanes

Icons

7-segment[1]

14-segment[2]

Dot matrix:

segments/

elements

72 dots (4 × 18)

54 dots (3 × 18)

36 dots (2 × 18)

18 dots (1 × 18)

Table 10. Selection of possible display configurations

[1]

7 segment display has 8 segments/elements including the decimal point.

[2]

14 segment display has 16 segments/elements including decimal point and accent dot.

HOST

MICRO-

CONTROLLER

R ≤

2Cb

SDA

SCL

18 segment drives

4 backplanes

LCD PANEL

(up to 72

elements)

PCA8561A

VDD

VSS

aaa-012351

VLCD

VDD

CLK

n.c.

PORE

100 nF

RST

The resistance of the power lines must be kept to a minimum. A decoupling capacitor of at least

100 nF is recommended for the supplies.

Figure 9. Typical system configuration using I2C-bus, internal power-on reset disabled

PCA8561

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 15 March 2021

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