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参数资料
| 型号： | PCF8534AU/DA/1,026 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 28/52页 |
| 文件大小： | 0K |
| 描述： | IC LCD DISPLAY DVR 60SEG |
| 标准包装： | 720 |
| 显示器类型： | LCD |
| 配置： | 60 段 |
| 接口： | I²C |
| 电流 - 电源： | 8µA |
| 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： | 模具 |
| 供应商设备封装： | 模具 |
| 包装： | 托盘 - 晶粒 |
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NXP Semiconductors
PCF8534A
Universal LCD driver for low multiplex rates
8.5 I 2 C-bus controller
The PCF8534A acts as an I 2 C-bus slave receiver. It does not initiate I 2 C-bus transfers or
transmit data to an I 2 C-bus master receiver. The only data output from the PCF8534A are
the acknowledge signals of the selected devices. Device selection depends on the
I 2 C-bus slave address, on the transferred command data and on the hardware
subaddress.
In single device applications, the hardware subaddress inputs A0, A1, and A2 are
normally tied to V SS which defines the hardware subaddress 0. In multiple device
applications A0, A1, and A2 are tied to V SS or V DD using a binary coding scheme, so that
no two devices with a common I 2 C-bus slave address have the same hardware
subaddress.
8.6 Input filters
To enhance noise immunity in electrically adverse environments, RC low-pass filters are
provided on the SDA and SCL lines.
8.7 I 2 C-bus protocol
Two I 2 C-bus slave addresses (0111 000 and 0111 001) are used to address the
Table 16.
I 2 C slave address byte
Slave address
Bit
7
6
5
4
3
2
1
0
MSB
LSB
0
1
1
1
0
0
SA0
R/W
The PCF8534A is a write-only device and does not respond to a read access, therefore
bit 0 should always be logic 0. Bit 1 of the slave address byte, that a PCF8534A will
respond to, is defined by the level tied to its SA0 input (V SS for logic 0 and V DD for logic 1).
Having two reserved slave addresses allows the following on the same I 2 C-bus:
? Up to 16 PCF8534A for large LCD applications
? The use of two types of LCD multiplex drive
The I 2 C-bus protocol is shown in Figure 18 . The sequence is initiated with a START
condition (S) from the I 2 C-bus master which is followed by one of the available PCF8534A
slave addresses. All PCF8534A with the same SA0 level acknowledge in parallel to the
slave address. All PCF8534A with the alternative SA0 level ignore the whole I 2 C-bus
transfer.
PCF8534A
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 25 July 2011
? NXP B.V. 2011. All rights reserved.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PCF8534H | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Universal LCD driver for low multiplex rates |
| PCF8535 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:65 x 133 pixel matrix driver |
| PCF8535U | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:65 x 133 pixel matrix driver |
| PCF8536 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:I2C/SPI LCD and PWM LED controller for industrial and automotive applications |
| PCF85363ATL/AX | 功能描述:Real Time Clock (RTC) IC Clock/Calendar I2C, 2-Wire Serial 10-XFDFN Exposed Pad 制造商:nxp semiconductors 系列:- 包装:剪切带（CT） 零件状态:有效 类型:时钟/日历 特性:警报器，闰年，监视计时器 存储容量:- 时间格式:HH：MM：SS：hh（12/24 小时） 日期格式:YY-MM-DD-dd 接口:I2C，2 线串口 电压 - 电源:0.9 V ~ 5.5 V 电压 - 电源，电池:0.9 V ~ 5.5 V 电流 - 计时（最大）:0.885μA @ 3.3V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-XFDFN 裸露焊盘 供应商器件封装:10-DFN（2.6x2.6） 标准包装:1 |
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