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PCA9507DP,118 PDF预览

PCA9507DP,118

更新时间： 2024-11-16 09:07:39
品牌 Logo 应用领域
恩智浦 - NXP PC光电二极管接口集成电路
页数 文件大小 规格书
20页 129K
描述
PCA9507 - 2-wire serial bus extender for HDMI DDC I2C-bus and SMBus TSSOP 8-Pin

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PCA9507DP,118 技术参数

是否Rohs认证： 符合生命周期：Active
零件包装代码：TSSOP包装说明：TSSOP, TSSOP8,.19
针数：8Reach Compliance Code：compliant
HTS代码：8542.39.00.01风险等级：1.1
Samacsys Description：2-wire serial bus extender for HDMI DDC I2C-bus and SMBus接口集成电路类型：INTERFACE CIRCUIT
JESD-30 代码：S-PDSO-G8JESD-609代码：e4
长度：3 mm湿度敏感等级：1
功能数量：1端子数量：8
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装等效代码：TSSOP8,.19封装形状：SQUARE
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
电源：3/5 V认证状态：Not Qualified
座面最大高度：1.1 mm子类别：Other Interface ICs
最大压摆率：5 mA最大供电电压：5.5 V
最小供电电压：2.7 V标称供电电压：3.6 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：NICKEL PALLADIUM GOLD端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：30宽度：3 mm

PCA9507DP,118 数据手册

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PCA9507  
2-wire serial bus extender for HDMI DDC I2C-bus and SMBus  
Rev. 01 — 7 February 2008  
Product data sheet  
1. General description  
The PCA9507 is a 2-wire serial bus extender providing 3.3 V to 5 V level shift that allows  
up to 18 meters bus extension for reliable DDC, I2C-bus or SMBus applications. While  
retaining all the operating modes and features of the I2C-bus system during the level  
shifts, it also permits extension of the I2C-bus by providing bidirectional buffering for both  
the data (SDA) and the clock (SCL) line as well as the rise time accelerator on port A  
enabling the bus to drive a load up to 1400 pF or distance of 18 m on port A, and 400 pF  
on port B. Using the PCA9507 enables the system designer to isolate bus capacitance to  
meet HDMI DDC version 1.3 distance specification. The SDA and SCL pins are  
overvoltage tolerant and are high-impedance when the PCA9507 is unpowered.  
The port B drivers with static level offset behave much like the drivers on the PCA9515  
device, while the port A drivers integrate the rise time accelerator, sink more current and  
eliminate the static offset voltage. This results in a LOW on port B translating into a nearly  
0 V LOW on port A. The static level offset design of the port B I/O drivers prevent them  
from being connected to another device that has rise time accelerator including the  
PCA9510, PCA9511, PCA9512, PCA9513, PCA9514, PCA9515, PCA9516A, PCA9517  
(B-side), or PCA9518. The port A sides of two or more PCA9507s can be connected  
together, however, to allow a star topography with port A on the common bus, and port A  
can be connected directly to any other buffer with static or dynamic offset voltage. Multiple  
PCA9507s can be connected in series, port A to port B, with no build-up in offset voltage  
with only time of flight delays to consider. Rise time accelerator on port A is turned on  
when input threshold is above 0.3VCC(A)  
.
The PCA9507 drivers are not enabled unless VCC(A) and VCC(B) are above 2.7 V. The EN  
pin can also be used to turn the drivers on and off under system control. Caution should  
be observed to only change the state of the enable pin when the bus is idle. The output  
pull-down on the port B internal buffer LOW is set for approximately 0.5 V, while the input  
threshold of the internal buffer is set about 70 mV lower (0.43 V). When the port B I/O is  
driven LOW internally, the LOW is not recognized as a LOW by the input. This prevents a  
lock-up condition from occurring.  
2. Features  
I 2 channel, bidirectional buffer isolates capacitance allowing 1400 pF on port A and  
400 pF on port B  
I Exceeds 18 meters (above the maximum distance for HDMI DDC)  
I Rise time accelerator and normal I/O on port A  
I Static level offset on port B  
I Voltage level translation from 2.7 V to 5.5 V  
I Upgrade replacement over PCA9517 for cable application  
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PCA9507DP,118 替代型号

型号 品牌 替代类型 描述 数据表
PCA9507D,112 NXP

完全替代

 PCA9507 - 2-wire serial bus extender for HDMI DDC I2C-bus and SMBus SOIC 8-Pin
PCA9507DP NXP

功能相似

 2-wire serial bus extender for HDMI DDC I2C-bus and SMBus

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