參數(shù)資料
型號: PCD8544
廠商: NXP Semiconductors N.V.
英文描述: 48 x 84 pixels matrix LCD controller/driver
中文描述: 48 × 84像素的矩陣液晶顯示控制器/驅動器
文件頁數(shù): 16/32頁
文件大?。?/td> 154K
代理商: PCD8544
1999 Apr 12
16
Philips Semiconductors
Product specification
48
×
84 pixels matrix LCD controller/driver
PCD8544
Table 4
Programming the required bias system
Table 5
LCD bias voltage
BS
2
BS
1
BS
0
n
RECOMMENDED
MUX RATE
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
7
6
5
4
3
2
1
0
1 : 100
1 : 80
1 : 65/1 : 65
1 : 48
1 : 40/1 : 34
1 : 24
1 : 18/1 : 16
1 : 10/1 : 9/1 : 8
SYMBOL
BIAS VOLTAGES
BIAS VOLTAGE FOR
1
8
BIAS
V
LCD
7
8
×
V
LCD
6
8
×
V
LCD
2
8
×
V
LCD
1
8
×
V
LCD
V
SS
V1
V2
V3
V4
V5
V6
V
LCD
(n + 3)/(n + 4)
(n + 2)/(n + 4)
2/(n + 4)
1/(n + 4)
V
SS
8.9
Set V
OP
value
The operation voltage V
LCD
can be set by software.
The values are dependent on the liquid crystal selected.
V
LCD
= a + (V
OP6
to V
OP0
)
×
b [V]. In the PCD8544,
a = 3.06 and b = 0.06 giving a program range of
3.00 to 10.68 at room temperature.
Note that the charge pump is turned off if V
OP6
to V
OP0
is
set to zero.
For Mux 1 : 48, the optimum operation voltage of the liquid
can be calculated as:
(2)
where V
th
is the threshold voltage of the liquid crystal
material used.
Caution, as V
OP
increases with lower temperatures,
care must be taken not to set a V
OP
that will exceed the
maximum of 8.5 V when operating at
25
°
C
.
V
LCD
48
+
2
1
48
--1
--------1
th
6.06 V
th
=
=
Fig.14 V
OP
programming.
a = 3.06.
b = 0.06.
V
OP6
to V
OP0
(programmed) [00 to 7FH].
handbook, halfpage
MGL643
00 01 02 03 04 05 06 07 08 09 0A ...
b
a
相關PDF資料
PDF描述
PCD8544U 48 x 84 pixels matrix LCD controller/driver
PCDAC12-4 PC(ISA)BUS I/O CARD
PCDBM Power Conversion dBm to Watts
PCE84C486 Microcontrollers for digital auto-sync and VST TV controller applications
PCE84C487 Microcontrollers for digital auto-sync and VST TV controller applications
相關代理商/技術參數(shù)
參數(shù)描述
PCD8544U 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:48 x 84 pixels matrix LCD controller/driver
PCD8572 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Microchip Technology Inc 功能描述:
PCD8572/J 制造商:未知廠家 制造商全稱:未知廠家 功能描述:I2C Serial EEPROM
PCD8572/P 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Microchip Technology Inc 功能描述:
PCD8572/P010 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Microchip Technology Inc 功能描述: