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参数资料
| 型号： | PCF8566P,112 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 16/48页 |
| 文件大小： | 0K |
| 描述： | IC LCD DVR UNVRSL LOW-MUX 40-DIP |
| 产品培训模块： | LCD Driver I²C Bus Fundamentals |
| 标准包装： | 9 |
| 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： | 通孔 |
| 封装/外壳： | 40-DIP（0.600"，15.24mm） |
| 供应商设备封装： | 40-DIP |
| 包装： | 管件 |
| 产品目录页面： | 844 (CN2011-ZH PDF) |
| 其它名称： | 568-1069-5 933865310112 PCF8566PN |
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NXP Semiconductors
PCF8566
Universal LCD driver for low multiplex rates
The lower clock frequency has the disadvantage of increasing the response time when
large amounts of display data are transmitted on the I 2 C-bus. When a device is unable to
process a display data byte before the next one arrives, it holds the SCL line LOW until the
?rst display data byte is stored. This slows down the transmission rate of the I 2 C-bus but
no data loss occurs.
7.7 Display register
The display register holds the display data while the corresponding multiplex signals are
generated. There is a one-to-one relationship between the data in the display register, the
LCD segment outputs and one column of the display RAM.
7.8 Shift register
The shift register transfers display information from the display RAM to the display register
while previous data is displayed.
7.9 Segment outputs
The LCD drive section includes 24 segment outputs S0 to S23 which must be connected
directly to the LCD. The segment output signals are generated based on the multiplexed
backplane signals and with data resident in the display register. When less than
24 segment outputs are required, the unused segment outputs should be left open-circuit.
7.10 Backplane outputs
The LCD drive section includes four backplane outputs: BP0 to BP3. The backplane
output signals are generated based on the selected LCD drive mode.
? In 1:4 multiplex drive mode: BP0 to BP3 must be connected directly to the LCD.
If less than four backplane outputs are required the unused outputs can be left as an
open-circuit.
? In 1:3 multiplex drive mode: BP3 carries the same signal as BP1, therefore these two
adjacent outputs can be tied together to give enhanced drive capabilities.
? In 1:2 multiplex drive mode: BP0 and BP2, BP1 and BP3 respectively carry the same
signals and can also be paired to increase the drive capabilities.
? In static drive mode: the same signal is carried by all four backplane outputs and they
can be connected in parallel for very high drive requirements.
7.11 Display RAM
The display RAM is a static 24 × 4-bit RAM which stores LCD data. Logic 1 in the RAM bit
map indicates the on-state of the corresponding LCD segment; similarly, logic 0 indicates
the off-state. There is a direct relationship between the RAM addresses and the segment
outputs, and between the individual bits of a RAM word and the backplane outputs. The
?rst RAM row corresponds to the 24 segments operated with respect to backplane BP0
(see Figure 10 ). In multiplexed LCD applications, the segment data of rows 1 to 4 of the
display RAM are time-multiplexed with BP0, BP1, BP2 and BP3 respectively.
PCF8566_7
? NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 07 — 25 February 2009
16 of 48
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PCF8566PN | 制造商:未知厂家 制造商全称:未知厂家 功能描述:LCD Display Driver |
| PCF8566T | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Universal LCD driver for low multiplex rates |
| PCF8566T/1 | 制造商:NXP Semiconductors 功能描述:LCD DRIVER LOW-MUX 40VSOP 制造商:NXP Semiconductors 功能描述:LCD DRIVER, LOW-MUX, 40VSOP 制造商:NXP Semiconductors 功能描述:LCD DRIVER, LOW-MUX, 40VSOP; No. of Digits / Alpha:6; No. of Segments:14; Driver Case Style:VSO; No. of Pins:40; Supply Voltage Min:2.5V; Supply Voltage Max:6V; Interface Type:I2C; Operating Temperature Min:-40C; Operating ;RoHS Compliant: Yes |
| PCF8566T/1,112 | 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 |
| PCF8566T/1,118 | 功能描述:LCD 驱动器 LCD DVR UNVRSL LOW-MUX 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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