参数资料
型号: PCF8536AT/1,118
厂商: NXP Semiconductors
文件页数: 38/74页
文件大小: 0K
描述: IC LCD DRIVER LOW MPLEX 56TSSOP
特色产品: NXP - I2C Interface
标准包装: 1
显示器类型: LED,LCD
配置: 7段 + DP,14段 + DP + AP,点阵
接口: I²C
数字或字符: 20 字符,40 字符,320 元件
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: 56-TFSOP(0.240",6.10mm 宽)
供应商设备封装: 56-TSSOP
包装: 标准包装
其它名称: 568-8447-6
NXP Semiconductors
PCF8536
Universal LCD low multiplex driver with 6 channel PWM generator
8.9.3 RAM filling in 1:6 multiplex drive mode
In the 1:6 multiplex drive mode the RAM is organized in six rows and 42 columns. The
eight transmitted data bits are placed in such a way, that a column is filled up (see
Columns
Display RAM addresses (columns)/segment outputs (S)
0
1
2
3
4
5
6
7
37 38 39 40 41
0 a7 a1 b3 c5
Rows
Display RAM
bits (rows)/
backplane outputs
(BP)
1 a6 a0 b2 c4
2 a5 b7 b1 c3
3 a4 b6 b0 c2
4 a3 b5 c7 c1
5 a2 b4 c6 c0
MSB
LSB
a7 a6 a5 a4 a3 a2 a1 a0
b7 b6 b5 b4 b3 b2 b1 b0
c7 c6 c5 c4 c3 c2 c1 c0
Transmitted data bytes
013aaa457
Fig 23. Display RAM filling order in 1:6 multiplex drive mode
The remaining bits are wrapped over into the next column. In order to fill the whole RAM,
31 and a half bytes need to be sent to the PCF8536. After the last byte sent, the data
pointer must be reset before the next RAM content update. Additional data bytes sent and
any data bits that spill over the RAM will be discarded. Depending on the start address of
the data pointer, there are three possible boundary conditions. See Figure 24 .
PCF8536
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 21 February 2012
? NXP B.V. 2012. All rights reserved.
38 of 74
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