PCF2113X datasheet(47/72 Pages) PHILIPS

47 / 72 page

2001 Dec 19

Philips Semiconductors

Product speciﬁcation

LCD controllers/drivers

PCF2113x

handbook, full pagewidth

VDD

SCL SDA

MASTER TRANSMITTER

PCF84C81A; P80CL410

PCF2113x

× 12 CHARACTER

LCD DISPLAY

PLUS 120 ICONS

C1 to C60

OSC

SCL SDA

DB3/SAO

100

R17, R18

R1 to R16

VDD

VSS

VDD

VLCD

VSS

PCF2113x

× 24 CHARACTER

LCD DISPLAY

PLUS 120 ICONS

C1 to C60

OSC

SCL SDA

DB3/SAO

470

100

R17, R18

R1 to R16

VSS

VDD

VSS

VDD

VLCD

VSS

MGG008

Fig.33 Application using I2C-bus interface.

16.1

General application information

The required minimum value for the external capacitors in

an application with the PCF2113x are: CExt for

VLCD/VSS = 100 nF min., for VDD/VSS = 470 nF. Higher

capacitor values are recommended for ripple reduction.

For COG applications the recommended ITO track

resistance is to be minimized for the I/O and supply

connections.

Optimized values for these tracks are below 50

Ω for the

supply and below 100

Ω for the I/O connections. Higher

track resistance reduce performance and increase current

consumption.

To avoid accidental triggering of Power-on reset

(especially in COG applications), the supplies must be

adequately decoupled. Depending on power supply

quality, VDD1 may have to be risen above the specified

minimum.

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