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參數資料
| 型號： | PCF8562 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Universal LCD driver for low multiplex rates |
| 中文描述： | 通用LCD驅動器的低復用率 |
| 文件頁數： | 7/36頁 |
| 文件大?。?/td> | 928K |
| 代理商： | PCF8562 |
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November 22, 2004
7
Philips Semiconductors
Preliminary specification
Universal LCD driver
for low multiplex rates
PCF8562
6
FUNCTIONAL DESCRIPTION
The PCF8562 is a versatile peripheral device designed to interface any microprocessor/microcontroller with a wide
variety of LCDs. It can directly drive any static or multiplexed LCD containing up to four backplanes and up to
32 segments.
The display configurations possible with the PCF8562 depend on the number of active backplane outputs required. A
selection of display configurations is shown in Table 1; all of these configurations can be implemented in the typical
system shown in Fig.4.
The host microprocessor/microcontroller maintains the 2-line I
2
C-bus communication channel with the PCF8562. The
internal oscillator is enabled by connecting pin OSC to pin V
SS
. 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 (V
DD
, V
SS
and V
LCD
) and the LCD panel chosen for the application.
Table 1
Selection of display configurations
NUMBER OF
7-SEGMENTS NUMERIC
14-SEGMENTS
ALPHANUMERIC
DOT MATRIX
BACKPLANE
S
SEGMENTS
DIGITS
INDICATOR
SYMBOLS
CHARACTERS
INDICATOR
SYMBOLS
4
3
2
1
128
86
64
32
16
12
8
4
16
12
8
4
8
6
4
2
16
12
8
4
128 dots (4
×
32)
96 dots (3
×
32)
64 dots (2
×
32)
32 dots (1
×
32)
Fig.4 Typical system configuration.
The resistance of the power supply lines must be kept to a minimum.
HOST
MICRO-
PROCESSOR/
MICRO-
CONTROLLER
tr
2CB
SDA
SCL
OSC
32 segment drives
4 backplanes
LCD PANEL
(up to 128
elements)
PCF8562
A0
A1
A2
SA0
VDD
VSS
VSS
VDD
VLCD
MDB079v2
R
≤
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相關代理商/技術參數 |
參數描述 |
|---|---|
| PCF8562_09 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal LCD driver for low multiplex rates |
| PCF8562_11 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal LCD driver for low multiplex rates |
| PCF8562DTT/2,518 | 制造商:NXP Semiconductors 功能描述:Tape & Reel |
| PCF8562TT/2 | 制造商:NXP Semiconductors 功能描述: |
| PCF8562TT/2,118 | 功能描述:LCD 驅動器 LCD DRIVER 32/128SEG RoHS:否 制造商:Maxim Integrated 數位數量:4.5 片段數量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
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