参数资料
型号: PCF8536AT/1,118
厂商: NXP Semiconductors
文件页数: 8/74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
8.1.2 Command: OTP-refresh
During production and testing of the device, each IC is calibrated to achieve the specified
accuracy of the frame frequency. This calibration is performed on EPROM cells called
One Time Programmable (OTP) cells. The device reads these cells every time the
OTP-refresh command is sent. This instruction has to be sent after a reset has been
made and before the display is enabled.
This command will be completed after a maximum of 30 ms and requires either the
internal or external clock to run. If the internal oscillator is not used, then a clock must be
supplied to the OSCCLK pin. If the OTP-refresh instruction is sent and no clock is present,
then the request is stored until a clock is available.
Remark: It is recommended not to enter power-down mode during the OTP refresh cycle.
Table 6.
OTP-refresh - OTP-refresh command bit description
Bit
7 to 0
Symbol
-
Value
11110000
Description
fixed value
8.1.3 Command: PWM-inversion
It is possible to invert the output of the PWM generators. This function may be useful for
counteracting EMC issues. The description of this mode can be found in Section 8.11.2 on
Table 7.
PWM-inversion - PWM inversion command bit description
Bit
7 to 1
0
Symbol
-
PWMI
Value
0001010
1
0 [1]
Description
fixed value
PWM inversion mode
PWM inversion mode on
PWM inversion mode off
[1]
Default value.
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.
8 of 74
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