Datasheet > PCA8550PW,112

PCA8550PW,112

更新时间： 2025-08-21 18:16:15

品牌	Logo	应用领域
恩智浦 - NXP		可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数	文件大小	规格书
23页	555K
描述
4-bit multiplexed/1-bit latched 5-bit I2C EEPROM DIP switch

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PCA8550PW,112 数据手册

PCA8550

4-bit multiplexed/1-bit latched 5-bit I²C EEPROM DIP switch

Rev. 7 — 8 April 2015

Product data sheet

1. General description

The primary function of the 4-bit 2-to-1 I²C multiplexer is to select either a 4-bit input or

data from a non-volatile register and drive this value onto the output pins. One additional

non-multiplexed register output is also provided. The non-multiplexed output is latched to

prevent output value changes during I²C writes to the non-volatile register. A write protect

input is provided to enable/disable the ability to write to the non-volatile register. An

“override” input feature forces all outputs to logic 0.

2. Features and benefits

 4-bit 2-to-1 multiplexer, 1-bit latch DIP switch

 5-bit internal non-volatile register

 Override input forces all outputs to logic 0

 Internal non-volatile register write/readable via I²C-bus

 Write-protect pin enables/disables I²C writes to register

 2.5 V multiplexed outputs

 3.3 V non-multiplexed output (latched)

 5 V tolerant inputs

 Useful for ‘jumperless’ configuration of PC motherboards

 Designed for use in Pentium Pro/Pentium II systems

12 3 4 5 6 7...23

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型号	品牌	替代类型	描述	数据表
PCA8550PW	NXP	功能相似	4-bit multiplexed/1-bit latched 5-bit I2C EEPROM
PCA8550PW-T	NXP	功能相似	4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16, PLASTIC, SOT-403-1, TSSOP-16

型号	品牌	获取价格	描述	数据表
PCA8550PW,118	NXP	获取价格	PCA8550 - 4-bit multiplexed/1-bit latched 5-b
PCA8550PW-T	NXP	获取价格	4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16, PLASTIC, SOT-403-1, TSSOP-16
PCA8550PW/DG,118	NXP	获取价格	PCA8550 - 4-bit multiplexed/1-bit latched 5-b
PCA8550PW/G,118	NXP	获取价格	PCA8550 - 4-bit multiplexed/1-bit latched 5-b
PCA8550PWDH	NXP	获取价格	4-bit multiplexed/1-bit latched 5-bit I2C EEPROM
PCA8550PWLE	TI	获取价格	MULTIPLEXER, PDSO16, PLASTIC, TSSOP-16
PCA8550PWR	TI	获取价格	NONVOLATILE 5-BIT REGISTER WITH I2C INTERFACE
PCA8550PWRE4	TI	获取价格	NONVOLATILE 5-BIT REGISTER WITH I2C INTERFACE
PCA8550_06	TI	获取价格	NONVOLATILE 5-BIT REGISTER WITH I2C INTERFACE
PCA8551	NXP	获取价格	Automotive 36 Ã 4 LCD segment driver