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参数资料
| 型号： | PCA85176H/Q900/1,5 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 24/59页 |
| 文件大小： | 0K |
| 描述： | IC LCD DRIVER 40SEG 64TQFP |
| 产品培训模块： | I²C Bus Fundamentals |
| 标准包装： | 1 |
| 显示器类型： | LCD |
| 配置： | 40 段 |
| 接口： | I²C |
| 电流 - 电源： | 80µA |
| 电源电压： | 1.8 V ~ 5.5 V |
| 工作温度： | -40°C ~ 95°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 64-TQFP |
| 供应商设备封装： | 64-TQFP（10x10） |
| 包装： | 标准包装 |
| 其它名称： | 568-5108-6 |
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NXP Semiconductors
PCA85176
Automotive LCD driver for low multiplex rates
7.6.1 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 8 ). Following this command, an
arriving data byte is stored at the display RAM address indicated by the data pointer. The
After each byte is stored, the content of the data pointer is automatically incremented by a
value dependent on the selected LCD drive mode:
?
?
?
?
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 then the state of the data pointer is unknown.
Consequently, the data pointer must be rewritten prior to further RAM accesses.
7.6.2 Subaddress counter
The storage of display data is determined by the contents of the subaddress counter.
Storage is allowed only when the content of the subaddress counter match with the
hardware subaddress applied to A0, A1, and A2. The subaddress counter value is defined
by the device-select command (see Table 9 ). If the content of the subaddress counter and
the hardware subaddress do not match then data storage is inhibited but the data pointer
is incremented as if data storage had taken place. The subaddress counter is also
incremented when the data pointer overflows.
The storage arrangements described lead to extremely efficient data loading in cascaded
applications. When a series of display bytes are sent to the display RAM, automatic
wrap-over to the next PCA85176 occurs when the last RAM address is exceeded.
Subaddressing across device boundaries is successful even if the change to the next
device in the cascade occurs within a transmitted character.
The hardware subaddress must not be changed while the device is being accessed on the
I 2 C-bus interface.
PCA85176
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 11 July 2013
? NXP B.V. 2013. All rights reserved.
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相关代理商/技术参数 |
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|---|---|
| PCA85176T/Q900/1,1 | 功能描述:LCD 驱动器 40 SGMT 4800Hz 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 |
| PCA85176T/Q900/1,118 | 制造商:NXP Semiconductors 功能描述:Cut Tape |
| PCA85176T-Q900 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Universal LCD driver for low multiplex rates |
| PCA8521 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Infrared remote control transmitter RC5 |
| PCA8521BP | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Infrared remote control transmitter RC5 |
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