HD44780 Ver la hoja de datos (PDF) - Hitachi -> Renesas Electronics

Número de pieza

componentes Descripción

Fabricante

HD44780

Dot Matrix Liquid Crystal Display Controller/Driver

Hitachi -> Renesas Electronics 

HD44780U

13. RCOM is the resistance between the power supply pins (VCC, V1, V4, V5) and each common signal pin

(COM1 to COM16).

RSEG is the resistance between the power supply pins (VCC, V2, V3, V5) and each segment signal pin

(SEG1 to SEG40).

14. The following graphs show the relationship between operation frequency and current consumption.

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0.0

0

VCC = 5 V

max.

typ.

100 200 300 400 500

fOSC or fcp (kHz)

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0.0

0

VCC = 3 V

max.

typ.

100 200 300 400 500

fOSC or fcp (kHz)

15. Applies to the OSC1 pin.

16. Each COM and SEG output voltage is within ±0.15 V of the LCD voltage (VCC, V1, V2, V3, V4, V5)

when there is no load.

56

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