参数资料
型号: PCA85132U/2DB/Q1,0
厂商: NXP Semiconductors
文件页数: 10/62页
文件大小: 0K
描述: IC LCD DRIVER 32 UNCASED
标准包装: 600
显示器类型: LCD
配置: 多重
接口: I²C
数字或字符: 任何数字类型
电流 - 电源: 60µA
电源电压: 1.8 V ~ 5.5 V
工作温度: -40°C ~ 95°C
封装/外壳: 模具
供应商设备封装: 模具
包装: 散装
NXP Semiconductors
PCA85132
LCD driver for low multiplex rates
7.1.6.4
Frame frequency
Sourced by the internal oscillator or an external clock, the frame frequency is derived from
the clock frequency f clk by Equation 1 .
f fr = -------
f clk
24
(1)
7.1.6.5
Command: frequency-ctrl
Table 12.
Frequency-ctrl - command bit description
Bit
Symbol
Value
Description
Equation
Nominal
clock
Nominal
frame
frequency [1] frequency [1]
7 to 4
3 to 0
-
F[2:0]
11101
fixed value
defines the division factor
f clk ? int ? = ------ ? f osc
f clk ? int ? = ------ ? f osc
f clk ? int ? = ------ ? f osc
f clk ? int ? = ------ ? f osc
f clk ? int ? = ------ ? f osc
f clk ? int ? = ------ ? f osc
000
001
010
011 [2] , 111
100
101
110
64
80
64
74
64
68
f clk ? int ? = f osc
64
60
64
56
64
53
1440 Hz
1557 Hz
1694 Hz
1800 Hz
1920 Hz
2057 Hz
2174 Hz
60 Hz
65 Hz
70 Hz
75 Hz
80 Hz
85 Hz
90 Hz
[1]
[2]
Calculated with the oscillator frequency of f osc = 1.800 Hz. The frame frequency is derived from the internal
clock frequency by Equation 1 .
Default value.
7.1.6.6
Blinking
The display blinking capabilities of the PCA85132 are very versatile. The whole display
can blink at frequencies selected by the blink-select command (see Table 11 ). The blink
frequencies are derived from the clock frequency (f clk ). The ratios between the clock and
blink frequencies depend on the blink mode in which the device is operating (see
PCA85132
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 11 July 2013
? NXP B.V. 2013. All rights reserved.
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