参数资料
型号: PCF8576T,118
厂商: NXP Semiconductors
文件页数: 7/44页
文件大小: 0K
描述: IC LCD DVR UNVRSL LOW-MUX 56VSO
标准包装: 500
显示器类型: LCD
配置: 8 段,15 段,160 元件
接口: I²C,2 线串口
数字或字符: 10 字符,20 字符,160 元件
电流 - 电源: 180µA
电源电压: 2 V ~ 9 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 56-BSOP(0.435",11.50mm 宽)
供应商设备封装: 56-VSOP
包装: 带卷 (TR)
其它名称: 933740730118
PCF8576TD-T
PCF8576TD-T-ND

Philips Semiconductors
Universal LCD driver for low multiplex rates
Product speci?cation
PCF8576
6
FUNCTIONAL DESCRIPTION
The host microprocessor/microcontroller maintains the
The PCF8576 is a versatile peripheral device designed to
interface to any microprocessor/microcontroller to a wide
variety of LCDs. It can directly drive any static or
multiplexed LCD containing up to four backplanes and up
to 40 segments. The display configurations possible with
the PCF8576 depend on the number of active backplane
outputs required; a selection of display configurations is
given in Table .
All of the display configurations given in Table can be
implemented in the typical system shown in Fig.3.
Selection of display con?gurations
2-line I 2 C-bus communication channel with the PCF8576.
The internal oscillator is selected 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.
NUMBER OF
7-SEGMENTS NUMERIC
14-SEGMENTS
ALPHANUMERIC
DOT MATRIX
BACKPLANES
SEGMENTS
DIGITS
INDICATOR
SYMBOLS
CHARACTERS
INDICATOR
SYMBOLS
4
3
2
1
160
120
80
40
20
15
10
5
20
15
10
5
10
8
5
2
20
8
10
12
160 dots (4 × 40)
120 dots (3 × 40)
80 dots (2 × 40)
40 dots (1 × 40)
DD
handbook, full pagewidth
V
DD
R
tr
2CB
V
V
LCD
5
12
HOST
MICRO-
PROCESSOR/
MICRO-
CONTROLLER
SDA
SCL
OSC
1
2
6
17 to 56 40 segment drives
PCF8576
13 to 16 4 backplanes
LCD PANEL
(up to 160
elements)
7
8
9
10
11
SS
ROSC
A0
A1
A2
SA0 V
MBK277
SS
V
Fig.3 Typical system configuration.
2001 Oct 02
7
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