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参数资料
| 型号： | PCF8566T/1,112 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 17/48页 |
| 文件大小： | 0K |
| 描述： | IC LCD DVR UNVRSL LOW-MUX 40VSOP |
| 产品培训模块： | LCD Driver I²C Bus Fundamentals |
| 特色产品： | NXP - I2C Interface |
| 标准包装： | 31 |
| 显示器类型： | LCD |
| 配置： | 7 段 + DP，14 段（24 段） |
| 接口： | I²C |
| 电流 - 电源： | 30µA |
| 电源电压： | 2.5 V ~ 6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-BSOP（0.295"，7.50mm 宽） |
| 供应商设备封装： | 40-VSOP |
| 包装： | 管件 |
| 产品目录页面： | 844 (CN2011-ZH PDF) |
| 其它名称： | 568-5030 935278688112 PCF8566T/1,112-ND PCF8566TD PCF8566TD-ND |
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NXP Semiconductors
PCF8566
Universal LCD driver for low multiplex rates
display RAM addresses (columns)/segment outputs (S)
0
1
2
3
4
19
20
21
22
23
0
display RAM bits
(rows)/
backplane outputs
(BP)
1
2
3
mgg389
Fig 10. Display RAM bit map showing the direct relationship between display RAM
addresses and segment outputs and between bits in a RAM word and backplane
outputs
When display data is transmitted to the PCF8566 the display bytes received are stored in
the display RAM based on the selected LCD drive mode. An example of a 7-segment
The RAM storage organization applies equally to other LCD types.
? Static drive mode: the eight transmitted data bits are placed in row 0 to eight
successive display RAM addresses.
? 1:2 multiplex drive mode: the eight transmitted data bits are placed in row 0 and 1 to
four successive display RAM addresses.
? 1:3 multiplex drive mode: the eight transmitted data bits are placed in row 0, 1 and 2 of
three successive addresses, with bit 2 of the third address left unchanged. This last bit
can, if necessary, be controlled by an additional transfer to this address but avoid
overriding adjacent data because always full bytes are transmitted.
? 1:4 multiplex drive mode: the eight transmitted data bits are placed in row 0, 1, 2 and
3 to two successive display RAM addresses.
7.12 Data pointer
The addressing mechanism for the display RAM is realized using the data pointer. This
allows the loading of an individual display data byte or a series of display data bytes, into
any location of the display RAM. The sequence commences with the initialization of the
data pointer by the load data pointer command (see Table 13 ). After this, the data byte is
stored starting at the display RAM address indicated by the data pointer (see Figure 11 ).
Once each byte is stored, the data pointer is automatically incremented based on the
selected LCD con?guration.
The contents of the data pointer are incremented as follows:
?
?
?
?
In static drive mode by eight.
In 1:2 multiplex drive mode by four.
In 1:3 multiplex drive mode by three.
In 1:4 multiplex drive mode by two.
If an I 2 C-bus data access terminates early, the state of the data pointer is unknown.
Consequently, the data pointer must be rewritten prior to further RAM accesses.
PCF8566_7
? NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 07 — 25 February 2009
17 of 48
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PCF8566TD | 功能描述:LCD 驱动器 96 SGMT LCD SGMT DRV RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| PCF8566TD-T | 制造商:NXP Semiconductors 功能描述:LCD DRVR 12DIGIT 3.3V/5V 40-Pin VSO T/R |
| PCF8566TS | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Universal LCD driver for low multiplex rates |
| PCF8566TS/1,112 | 功能描述:LCD 驱动器 24 SGMT 315KHz RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| PCF8566TS/1,118 | 功能描述:LCD 驱动器 24 SGMT 315KHz RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
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