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PCA9543CPW

更新时间： 2024-11-09 05:59:47

品牌	Logo	应用领域
恩智浦 - NXP		解复用器开关逻辑集成电路光电二极管
页数	文件大小	规格书
23页	131K
描述
2-channel I2C-bus switch with interrupt logic and reset

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技术参数
数据手册
替代型号

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PCA9543CPW 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	TSSOP
包装说明：	4.40 MM, PLASTIC, MO-153, SOT-402-1, TSSOP-14	针数：	14
Reach Compliance Code：	compliant	HTS代码：	8542.39.00.01
风险等级：	5.22	Is Samacsys：	N
其他特性：	ALSO OPERATES WITH 4.5 TO 5.5V SUPPLY	系列：	9543
JESD-30 代码：	R-PDSO-G14	JESD-609代码：	e4
长度：	5 mm	逻辑集成电路类型：	MULTIPLEXER
湿度敏感等级：	1	功能数量：	1
输入次数：	2	输出次数：	1
端子数量：	14	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	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	260
传播延迟（tpd）：	0.3 ns	认证状态：	Not Qualified
座面最大高度：	1.1 mm	最大供电电压 (Vsup)：	3.6 V
最小供电电压 (Vsup)：	2.3 V	标称供电电压 (Vsup)：	3.3 V
表面贴装：	YES	温度等级：	INDUSTRIAL
端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)	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：	4.4 mm
Base Number Matches：	1

PCA9543CPW 数据手册

PCA9543A/43B/43C

2-channel I²C-bus switch with interrupt logic and reset

Rev. 05 — 17 November 2008

Product data sheet

1. General description

The PCA9543A/43B/43C is a bidirectional translating switch, controlled by the I²C-bus.

The SCL/SDA upstream pair fans out to two downstream pairs, or channels. Any

individual SCx/SDx channels or combination of channels can be selected, determined by

the contents of the programmable control register. Two interrupt inputs, INT0 and INT1,

one for each of the downstream pairs, are provided. One interrupt output, INT, which acts

as an AND of the two interrupt inputs, is provided.

An active LOW reset input allows the PCA9543X to recover from a situation where one of

the downstream I²C-buses is stuck in a LOW state. Pulling the RESET pin LOW resets the

I²C-bus state machine and causes all the channels to be deselected, as does the internal

power-on reset function.

The pass gates of the switches are constructed such that the V_DDpin can be used to limit

the maximum high voltage which will be passed by the PCA9543X. This allows the use of

different bus voltages on each SCx/SDx pair, so that 1.8 V, 2.5 V, or 3.3 V parts can

communicate with 5 V parts without any additional protection. External pull-up resistors

pull the bus up to the desired voltage level for each channel. All I/O pins are 5 V tolerant.

The PCA9543A, PCA9543B and PCA9543C are identical except for the ﬁxed portion of

the slave address.

2. Features

I 1-of-2 bidirectional translating switches

I I²C-bus interface logic; compatible with SMBus standards

I 2 active LOW interrupt inputs

I Active LOW interrupt output

I Active LOW reset input

I 2 address pins allowing up to 4 devices on the I²C-bus

I Alternate address versions A, B and C allow up to a total of 12 devices on the bus for

larger systems or to resolve address conﬂicts

I Channel selection via I²C-bus, in any combination

I Power-up with all switch channels deselected

I Low R_onswitches

I Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V buses

I No glitch on power-up

I Supports hot insertion

I Low standby current

I Operating power supply voltage range of 2.3 V to 5.5 V

12 3 4 5 6 7...23

中文翻译

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PCA9543CPW 替代型号

型号	品牌	替代类型	描述	数据表
PCA9543APW,112	NXP	功能相似	PCA9543A/43B - 2-channel I²C-bus switch with
PCA9543APW	TI	功能相似	TWO-CHANNEL I2C-BUS SWITCH WITH INTERRUPT LOGIC AND RESET

与PCA9543CPW相关器件

型号	品牌	获取价格	描述	数据表
PCA9543CPW,118	NXP	获取价格	PCA9543CPW
PCA9543D	NXP	获取价格	2-channel I2C switch with interrupt logic and reset
PCA9543PW	NXP	获取价格	2-channel I2C switch with interrupt logic and reset
PCA9544	NXP	获取价格	4-channel I2C multiplexer and interrupt controller
PCA9544A	TI	获取价格	4-CHANNEL IC AND SMBus MULTIPLEXER WITH INTERRUPT LOGIC
PCA9544A	NXP	获取价格	4-channel IC multiplexer with interrupt logic
PCA9544A_07	TI	获取价格	4-CHANNEL I2C AND SMBus MULTIPLEXER WITH INTERRUPT LOGIC
PCA9544A_09	NXP	获取价格	4-channel I2C-bus multiplexer with interrupt logic
PCA9544ABS	NXP	获取价格	4-channel IC multiplexer with interrupt logic
PCA9544ABS,118	NXP	获取价格	PCA9544A - 4-channel I2C-bus multiplexer with interrupt logic QFN 20-Pin

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