pcf2119x-2 NXP Semiconductors, pcf2119x-2 Datasheet - Page 40

• Manufacturer Part Number: pcf2119x-2
• Description: Controllers/drivers
• Manufacturer: NXP Semiconductors

Philips Semiconductors
16 APPLICATION INFORMATION
16.1
The required minimum value for the external capacitors in an application with the PCF2119x-2 are:
C
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 Ohm for the supply and below 100 Ohm for the I/O connections. Higher
track resistance reduces 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, V
28. August 2000
handbook, full pagewidth
handbook, full pagewidth
ext
LCD controllers/drivers
for V
General application information
LCD
/V
SS1,2
= min. 100nF, for V
P80CL51
P80CL51
P17 to P10
P17 to P14
P20
P21
P22
P10
P11
P12
Fig.28 Direct connection to 8-bit MPU; 8-bit bus.
Fig.29 Direct connection to 8-bit MPU; 4-bit bus.
DD1,2,3
8
4
R/W
R/W
RS
E
DB7 to DB0
RS
E
DB7 to DB4
/ V
SS1,2
PCF2119x
PCF2119x
DD1
may have to be rised above the specified minimum.
= 470nF.
40
R17, R18
R1 to R16
C1 to C80
R17, R18
R1 to R16
C1 to C80
16
16
80
80
2
2
2
2
PLUS 160 ICONS
PLUS 160 ICONS
LCD DISPLAY
LCD DISPLAY
16 CHARACTER
16 CHARACTER
MGK896
MGK895
PCF2119x-2
Product specification