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PCA9646PW,118 PDF预览

PCA9646PW,118

更新时间： 2024-11-14 15:47:35
品牌 Logo 应用领域
恩智浦 - NXP PC光电二极管逻辑集成电路触发器
页数 文件大小 规格书
22页 171K
描述
PCA9646 - Buffered 4-channel 2-wire bus switch TSSOP 16-Pin

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PCA9646PW,118 技术参数

Source Url Status Check Date：2013-06-14 00:00:00是否Rohs认证： 符合
生命周期：Active零件包装代码：TSSOP
包装说明：TSSOP, TSSOP16,.25针数：16
Reach Compliance Code：compliant风险等级：1.74
控制类型：COMMON CONTROL计数方向：BIDIRECTIONAL
系列：9646JESD-30 代码：R-PDSO-G16
长度：5 mm逻辑集成电路类型：BUS EXCHANGER
最大I（ol）：0.03 A湿度敏感等级：1
位数：1功能数量：1
端口数量：4端子数量：16
最高工作温度：85 °C最低工作温度：-40 °C
输出特性：OPEN-DRAIN输出极性：TRUE
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装等效代码：TSSOP16,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH包装方法：TR, 13 INCH
最大电源电流（ICC）：0.001 mA座面最大高度：1.1 mm
最大供电电压 (Vsup)：5.5 V最小供电电压 (Vsup)：2.7 V
表面贴装：YES技术：CMOS
温度等级：INDUSTRIAL端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
翻译：N/A触发器类型：POSITIVE EDGE
宽度：4.4 mmBase Number Matches：1

PCA9646PW,118 数据手册

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PCA9646  
Buffered 4-channel 2-wire bus switch  
Rev. 2 — 17 June 2015  
Product data sheet  
1. General description  
The PCA9646 is a monolithic CMOS integrated circuit for 2-wire bus buffering and  
switching in applications including I2C-bus, SMBus, PMBus, and other systems based on  
similar principles.  
Each of the four outputs may be independently enabled in any combination as determined  
by the contents of the programmable control register. Each I/O is impedance isolated from  
all others, thus allowing a total of five branches of 2-wire bus with the maximum specified  
load (e.g., 5 400 pF for Fm+ I2C-bus at 1 MHz, or 5 4 nF at lower frequencies)  
(Ref. 1). More than one PCA9646 may be used in series, providing a substantial fan-out  
capability.  
The PCA9646 includes a unidirectional buffer for the clock signal, and a bidirectional  
buffer for the data signal. The direction of the clock signal may also be set by the contents  
of the programmable control register. Clock stretching and timing must always be under  
control of the master device.  
The PCA9646 has excellent application to 2-wire bus address expansion and increasing  
of maximum load capacitance. Very large LED displays are a perfect example.  
2. Features and benefits  
Drop-in pin compatible with PCA9546A, etc.  
Each I/O is impedance isolated from all others allowing maximum capacitance on all  
branches  
30 mA static sink capability on all ports  
Works with I2C-bus (Standard-mode, Fast-mode, and Fast-mode Plus (Fm+)),  
SMBus (standard and high power mode), and PMBus  
Fast switching times allow operation in excess of 1 MHz  
Allows driving of large loads (e.g., 5 4 nF)  
Hysteresis on I/O increases noise immunity  
Operating voltages from 2.7 V to 5.5 V  
Uncomplicated characteristics suitable for quick implementation in most common  
2-wire bus applications  
ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per  
JESD22-C101  
Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA  
 
 
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