参数资料
型号: PCF8562TT/S400/2,1
厂商: NXP Semiconductors
文件页数: 12/43页
文件大小: 0K
描述: IC LCD DRIVER 48-TSSOP
标准包装: 2,000
显示器类型: LCD
配置: 7段 + DP,14段 + DP + AP,点阵
接口: I²C,2 线串口
数字或字符: 8 个字符,16 个字符
电流 - 电源: 8µA
电源电压: 1.8 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 48-TFSOP(0.240",6.10mm 宽)
供应商设备封装: 48-TSSOP
包装: 带卷 (TR)
其它名称: PCF8562TTS40021
NXP Semiconductors
PCF8562
Universal LCD driver for low multiplex rates
7.4.2 1:2 Multiplex drive mode
When two backplanes are provided in the LCD, the 1:2 multiplex mode applies. The
PCF8562 allows the use of 1 ? 2 bias or 1 ? 3 bias in this mode as shown in Figure 7 and
T fr
V LCD
LCD segments
BP0
V LCD /2
V SS
state 1
V LCD
state 2
BP1
V LCD /2
V SS
V LCD
Sn
V SS
V LCD
Sn+1
V SS
(a) Waveforms at driver.
V LCD
V LCD /2
state 1
state 2
0V
? V LCD /2
? V LCD
V LCD
V LCD /2
0V
? V LCD /2
? V LCD
V state1 (t) = V Sn (t) ? V BP0 (t).
V on(RMS) = 0.791V LCD .
V state2 (t) = V Sn (t) ? V BP1 (t).
V off(RMS) = 0.354V LCD .
(b) Resultant waveforms
at LCD segment.
013aaa208
Fig 7.
Waveforms for the 1:2 multiplex drive mode with 1 ? 2 bias
PCF8562
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 16 June 2011
? NXP B.V. 2011. All rights reserved.
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