參數(shù)資料
型號: PCF8531
廠商: NXP Semiconductors N.V.
英文描述: 34×128 pixel matrix driver(34×128 像素矩陣驅(qū)動(dòng)器)
中文描述: 34 × 128像素矩陣驅(qū)動(dòng)器(34 × 128像素矩陣驅(qū)動(dòng)器)
文件頁數(shù): 32/44頁
文件大?。?/td> 212K
代理商: PCF8531
2000 Feb 11
32
Philips Semiconductors
Product specification
34
×
128 pixel matrix driver
PCF8531
handbook, full pagewidth
MGS484
3
DISPLAY 34
×
128 PIXELS
VDD1
to
VDD3
I/O
VSS1
VSS2
Cext
Rsupply
RI/O
VLCD
PCF8531
128
17
17
Fig.25 Chip-on-glass application.
The required minimum values for the external capacitors in an application with the PCF8531 are as follows:
C
ext
= 100 nF for V
LCD
and V
SS1
and V
SS2
, and C
ext
= 470 nF for V
DD1
to V
DD3
and V
SS1
and V
SS2
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
for the supply (R
supply
) and below 100
for the I/O connections
(R
I/O
).
To reduce the sensitivity of the reset to ESD/EMC disturbances for a chip-on-glass application, it is strongly
recommended to implement a series input resistance in the reset line (recommended minimum value 8 k
) on the
glass (ITO). If the reset input is not used, it should be connected to V
DD1
using a short connection.
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