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參數(shù)資料
| 型號： | 933865300112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 顯示驅動器 |
| 英文描述： | LIQUID CRYSTAL DISPLAY DRIVER, PDSO40 |
| 封裝： | PLASTIC, SOT-158-1, VSOP-40 |
| 文件頁數(shù)： | 37/40頁 |
| 文件大小： | 243K |
| 代理商： | 933865300112 |
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1998 May 04
6
Philips Semiconductors
Product specication
Universal LCD driver for low multiplex
rates
PCF8566
6
FUNCTIONAL DESCRIPTION
The PCF8566 is a versatile peripheral device designed to
interface any microprocessor to a wide variety of LCDs.
It can directly drive any static or multiplexed LCD
containing up to 4 backplanes and up to 24 segments.
The display configurations possible with the PCF8566
depend on the number of active backplane outputs
required; a selection of display configurations is given in
Table 1.
All of the display configurations given in Table 1 can be
implemented in the typical system shown in Fig.3.
The host microprocessor/microcontroller maintains the
two-line I2C-bus communication channel with the
PCF8566. The internal oscillator is selected by tying OSC
(pin 6) to VSS. The appropriate biasing voltages for the
multiplexed LCD waveforms are generated internally.
The only other connections required to complete the
system are to the power supplies (VDD, VSS and VLCD) and
to the LCD panel chosen for the application.
Table 1
Selection of display congurations
ACTIVE
BACKPLANE
OUTPUTS
NUMBER OF
SEGMENTS
7-SEGMENT NUMERIC
14-SEGMENT
ALPHANUMERIC
DOT MATRIX
4
96
12 digits + 12 indicator
symbols
6 characters + 12 indicator
symbols
96 dots (4
× 24)
3
72
9 digits + 9 indicator
symbols
4 characters + 16 indicator
symbols
72 dots (3
× 24)
2
48
6 digits + 6 indicator
symbols
3 characters + 6 indicator
symbols
48 dots (2
× 24)
1
24
3 digits + 3 indicator
symbols
1 character + 10 indicator
symbols
24 dots
Fig.3 Typical system configuration.
handbook, full pagewidth
HOST
MICRO-
PROCESSOR/
MICRO-
CONTROLLER
SDA
SCL
OSC
1
17 to 40
13 to 16
2
6
78
512
910
11
24 segment drives
4 backplanes
LCD PANEL
(up to 96
elements)
PCF8566
A0
A1
A2
SA0
VDD
VLCD
VSS
MGG385
R
≤
trise
2 Cbus
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