參數(shù)資料
型號(hào)： PCF8813
廠商： NXP Semiconductors N.V.
英文描述： (67 + 1) x 102 pixels matrix LCD driver
中文描述： （67 1）× 102像素矩陣LCD驅(qū)動(dòng)器
文件頁(yè)數(shù)： 6/72頁(yè)
文件大?。?/td> 446K
代理商： PCF8813
2004 Mar 05
6
Philips Semiconductors
Product specification
(67 + 1)
×
102 pixels matrix LCD driver
PCF8813
Notes
1.
Dummy pads are located at positions 1, 2, 3, 5, 6, 179, 180, 181, 182 and 274; dummy and alignment pads are
located at positions 4 and 178.
When not in use, this pad must be connected to V
DD1
or V
SS1
.
Output SDAHOUT is used as the data acknowledge output when the I
2
C-bus is selected. By connecting SDAHOUT
to SDAH externally, the SDAH line becomes fully I
2
C-bus compatible. Having the acknowledge output separated
from the serial data line is advantageous in COG applications because where the track resistance from the
SDAHOUT pad to the SDAH line can be significant, a potential divider is generated by the bus pull-up resistor and
the ITO track resistance. Therefore it is possible during the acknowledge cycle that the PCF8813 will not create a
logic LOW level. By splitting the SDAH input from the SDAHOUT output, the device could be used in a mode that
ignores the acknowledge bit. In COG applications where the acknowledge cycle is required, it is necessary to
minimize the track resistance from the SDAHOUT pad to the system SDAH line to guarantee a valid LOW level.
V
DD2
and V
DD3
supply the internal voltage generator, both have the same voltage and may be connected together
outside of the chip; V
DD1
supplies the remainder of the chip. V
DD1
, V
DD2
and V
DD3
can be connected together but
then care must be taken with respect to the supply voltage range. If the internal voltage generator is not used, pads
V
DD2
and V
DD3
must be connected to pads V
DD1
.
This pad can be used to tie-off unused input pads to the power supply voltage or to ground.
This input is not used in serial and I
2
C-bus mode and must therefore be connected to either V
DD1
or V
SS1
.
This input is not used when the serial or I
2
C-bus interface is selected and must therefore be connected to V
DD1
or
V
SS1
.
When serial or I
2
C-bus mode is selected, the unused parallel pads must be connected to V
DD1
or V
SS1
.
Supply rails V
SS1
and V
SS2
must be connected together.
10. This input is not used with the 3-line serial interface and must therefore be connected to V
DD1
or V
SS1
.
11. This pad can be connected externally to the SCE/SCLH pad to reduce the number of pads routed in COG
applications. When not connected in this configuration, V
OTPPROG
must be connected to either V
DD1
or V
SS1
after
completion of OTP programming and after the seal bit has been set.
12. When the on-chip oscillator is used, the OSC input must be connected to V
DD1
. If an external clock signal is used,
then this is connected to the OSC input. If both the oscillator and external clock are inhibited by connecting pad OSC
to V
SS1
, the display is not clocked and may be in a DC state. To avoid this, the chip should always be put into
Power-down mode before stopping the clock.
13. Test pads T1 to T5 are not accessible to users: T1, T2 and T5 must be connected to V
SS
; T3 and T4 must be
open-circuit.
14. Positive power supply for the liquid crystal display (see also Figs 51, 52 and 53):
a) If the internal voltage generator is used, pads V
LCDIN
, V
LCDSENSE
and V
LCDOUT
must be connected together.
b) An external LCD supply voltage can be supplied using the V
LCDIN
pad, this requires that pad V
LCDOUT
is
open-circuit, pad V
LCDSENSE
is connected to the V
LCDIN
input, and the internal voltage generator is switched off.
In Power-down mode, the external LCD supply voltage must be switched off.
2.
3.
4.
5.
6.
7.
8.
9.
V
LCDIN
V
LCDOUT
V
LCDSENSE
RES
256 to 262
263 to 271
272
273
LCD supply voltage input; note 14
generated LCD supply voltage; note 14
voltage multiplier (V
LCD
) regulation input; note 14
external reset input
SYMBOL
PAD
(1)
DESCRIPTION
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCF88132 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:(67 + 1) x 102 pixels matrix LCD driver
PCF88132DA 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:(67 + 1) x 102 pixels matrix LCD driver
PCF8813U 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:(67 + 1) x 102 pixels matrix LCD driver
PCF8820 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:67 x 101 Grey-scale/ECB colour dot matrix LCD driver
PCF8820U 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:67 x 101 Grey-scale/ECB colour dot matrix LCD driver
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