参数资料
型号: PCA8576CH/Q900/1,1
厂商: NXP Semiconductors
文件页数: 7/54页
文件大小: 0K
描述: IC LCD DRIVER 40SEG I2C 64LQFP
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: 120µA
电源电压: 2 V ~ 6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 64-LQFP
供应商设备封装: 64-LQFP(10x10)
包装: 标准包装
其它名称: 568-5122-6
NXP Semiconductors
PCA8576C
Automotive LCD driver for low multiplex rates
The possible display configurations of the PCA8576C depend on the number of active
backplane outputs required. A selection of display configurations is shown in Table 5 . All
of these configurations can be implemented in the typical system shown in Figure 5 .
Table 5.
Number of
Selection of possible display configurations
Backplanes
Icons
Digits/Characters
7-segment
14-segment
Dot matrix/
Elements
4
3
2
1
160
120
80
40
20
15
10
5
10
7
5
2
160 dots (4 ? 40)
120 dots (3 ? 40)
80 dots (2 ? 40)
40 dots (1 ? 40)
Fig 5.
Typical system configuration
The host microprocessor or microcontroller maintains the 2-line I 2 C-bus communication
channel with the PCA8576C.
Biasing voltages for the multiplexed LCD waveforms are generated internally, removing
the need for an external bias generator. The internal oscillator is selected by connecting
pin OSC to V SS . The only other connections required to complete the system are the
power supplies (pins V DD , V SS , and V LCD ) and the LCD panel selected for the application.
7.1 Power-On-Reset (POR)
At power-on the PCA8576C resets to the following starting conditions:
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?
?
?
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All backplane and segment outputs are set to V DD
The selected drive mode is 1:4 multiplex with 1 ? 3 bias
Blinking is switched off
Input and output bank selectors are reset (as defined in Table 9 )
The I 2 C-bus interface is initialized
The data pointer and the subaddress counter are cleared
Remark: Do not transfer data on the I 2 C-bus for at least 1 ms after a power-on to allow
the reset action to complete.
PCA8576C
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 16 December 2013
? NXP B.V. 2013. All rights reserved.
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