Datasheet > PCA9557PW-T

PCA9557PW-T

更新时间： 2024-09-26 21:06:39

品牌	Logo	应用领域
恩智浦 - NXP		光电二极管外围集成电路
页数	文件大小	规格书
2页	370K
描述
IC 8 I/O, PIA-GENERAL PURPOSE, PDSO16, 4.40 MM, PLASTIC, MO-153, SOT403-1, TSSOP-16, Parallel IO Port

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技术参数
数据手册
替代型号

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PCA9557PW-T 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：	Obsolete	零件包装代码：	TSSOP
包装说明：	TSSOP, TSSOP16,.25	针数：	16
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.21
JESD-30 代码：	R-PDSO-G16	JESD-609代码：	e4
长度：	5 mm	湿度敏感等级：	1
位数：	8	I/O 线路数量：	8
端口数量：	1	端子数量：	16
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：	TSSOP16,.25	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
电源：	2.5/5 V	认证状态：	Not Qualified
座面最大高度：	1.1 mm	子类别：	Parallel IO Port
最大供电电压：	5.5 V	最小供电电压：	2.3 V
表面贴装：	YES	技术：	CMOS
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	uPs/uCs/外围集成电路类型：	PARALLEL IO PORT, GENERAL PURPOSE
Base Number Matches：	1

PCA9557PW-T 数据手册

NXP octal SMBus registered

interface PCA9557

Convenient parallel I/O expansion

or collection via the I²C/SMBus

This ﬂexible device ofﬂoads the I/O controller in a range of system-management applications.

It uses the I²C/SMBus for I/O expansion or collection, supports unique resets, enables chipset-to-

peripheral interfaces, and can be used to send alert signals to LEDs.

Features

The PCA9557 has its own reset pins, so its I/O can be reset

without taxing the I/O controller’s GPIO. This is especially

useful when only a subset of the system I/O need to be reset.

Supports SMBus or I²C-bus I/O expansion and collection

Supports simple BIOS implementation via four registers

Input port enables light load readback

Active-high polarity inversion port inverts inputs

Conﬁguration port sets I/O as inputs or outputs

Outpur port allows readback for debug

The V_DDcan be supplied independently from the I/O

controller’s power, so it can operate even when the I/O

controller is off. To capture and submit any pre-system

power-alert signals, it’s recommended that a collector and an

indicator be kept active while the I/O controller is off.

I/O open-drain output for interrupt generatoin

Active-low reset and power-recycle defaults all I/O to inputs

Three address pins enable up to eight devices (64 I/O)

Glitch-free operation on power-up and power-down

2.3- to 5.5-V operation to 400 kHz

The PCA9557’s indicator interrupts are typically conﬁgured

as open drain, so they can be wire-OR’d with other indicator

interrupts. The I/O pin can also be set as an open-drain

output, to support an interrupt.

16-pin plastic SO, TSSOP, and HVQFN packages

Applications

Mobile system management

To facilitate BIOS implementation, the PCA9557 has four

SMBus registers.

Desktop workstation or server system management

Alert-on-Lan (AoL) applications

BIOS signalling with FlexATX EasyPC diagnostic code

中文翻译

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PCA9557PW-T 替代型号

型号	品牌	替代类型	描述	数据表
PCA9557PW	TI	功能相似	REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH RESET AND CONFIGURATION REGISTERS
PCA9557PWR	TI	功能相似	REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH RESET AND CONFIGURATION REGISTERS

与PCA9557PW-T相关器件

型号	品牌	获取价格	描述	数据表
PCA9557PWTG4	TI	获取价格	REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH RESET AND CONFIGURATION REGISTERS
PCA9557RGVR	TI	获取价格	REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH RESET AND CONFIGURATION REGISTERS
PCA9557RGVRG4	TI	获取价格	REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH RESET AND CONFIGURATION REGISTERS
PCA9557RGYR	TI	获取价格	REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH RESET AND CONFIGURATION REGISTERS
PCA9557RGYRG4	TI	获取价格	REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH RESET AND CONFIGURATION REGISTERS
PCA9558	NXP	获取价格	8-bit I2C and SMBus I/O port with 5-bit multiplexed/1-bit latched 6-bit I2C EEPROM and 2 k
PCA9558DH	NXP	获取价格	IC 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO28, 4.40 MM, PLASTIC, TSSOP-28, Multiple
PCA9558PW	PHILIPS	获取价格	Parallel IO Port, 8-Bit, PDSO28
PCA9558PW	NXP	获取价格	8-bit I2C and SMBus I/O port with 5-bit multiplexed/1-bit latched 6-bit I2C EEPROM and 2 k
PCA9558PW,118	NXP	获取价格	PCA9558 - 8-bit I²C-bus and SMBus I/O port TS

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