参数资料
型号: PCA85176H/Q900/1,5
厂商: NXP Semiconductors
文件页数: 26/59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
NXP Semiconductors
PCA85176
Automotive LCD driver for low multiplex rates
7.6.4 Writing over the RAM address boundary
In all multiplex drive modes, depending on the setting of the data pointer, it is possible to
fill the RAM over the RAM address boundary. If the PCA85176 is part of a cascade the
additional bits fall into the next device that also generates the acknowledge signal. If the
PCA85176 is a single device or the last device in a cascade the additional bits will be
discarded and no acknowledge signal will be generated.
7.6.5 Bank selection
7.6.5.1
7.6.5.2
7.6.5.3
Output bank selector
The output bank selector (see Table 10 on page 9 ) selects one of the four rows per display
RAM address for transfer to the display register. The actual row selected depends on the
particular LCD drive mode in operation and on the instant in the multiplex sequence.
? In 1:4 multiplex mode, all RAM addresses of row 0 are selected, followed by the
contents of row 1, row 2, and then row 3
? In 1:3 multiplex mode, rows 0, 1, and 2 are selected sequentially
? In 1:2 multiplex mode, rows 0 and 1 are selected
? In static mode, row 0 is selected
Input bank selector
The input bank selector loads display data into the display RAM in accordance with the
selected LCD drive configuration. Display data can be loaded by using the bank-select
command (see Table 10 ). The input bank selector functions independently to the output
bank selector.
RAM bank switching
The PCA85176 includes a RAM bank switching feature in the static and 1:2 multiplex
drive modes. A bank can be thought of as one RAM row or a collection of RAM rows (see
Figure 14 ). The RAM bank switching gives the provision for preparing display information
in an alternative bank and to be able to switch to it once it is complete.
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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