Datasheet > 微控制器和处理器 > 并行 IO 端口> PCA9554ABS3

PCA9554ABS3

更新时间： 2024-02-12 21:27:21

品牌	Logo	应用领域
恩智浦 - NXP		并行IO端口微控制器和处理器外围集成电路
页数	文件大小	规格书
30页	179K
描述
8-bit I2C-bus and SMBus I/O port with interrupt

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PCA9554ABS3 技术参数

是否Rohs认证：	符合	生命周期：	Active
零件包装代码：	QFN	包装说明：	HVQFN-16
针数：	16	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.12	Is Samacsys：	N
JESD-30 代码：	S-PQCC-N16	JESD-609代码：	e4
长度：	3 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：	HVQCCN
封装等效代码：	LCC16,.12SQ,20	封装形状：	SQUARE
封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	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 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
标称供电电压：	3 V	表面贴装：	YES
技术：	CMOS	温度等级：	INDUSTRIAL
端子面层：	NICKEL PALLADIUM GOLD	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	30	宽度：	3 mm
uPs/uCs/外围集成电路类型：	PARALLEL IO PORT, GENERAL PURPOSE	Base Number Matches：	1

PCA9554ABS3 数据手册

PCA9554/PCA9554A

8-bit I²C-bus and SMBus I/O port with interrupt

Rev. 07 — 13 November 2006

Product data sheet

1. General description

The PCA9554 and PCA9554A are 16-pin CMOS devices that provide 8 bits of General

Purpose parallel Input/Output (GPIO) expansion for I²C-bus/SMBus applications and

were developed to enhance the NXP Semiconductors family of I²C-bus I/O expanders.

The improvements include higher drive capability, 5 V I/O tolerance, lower supply current,

individual I/O conﬁguration, 400 kHz clock frequency, and smaller packaging. I/O

expanders provide a simple solution when additional I/O is needed for ACPI power

switches, sensors, push buttons, LEDs, fans, etc.

The PCA9554/PCA9554A consist of an 8-bit Conﬁguration register (Input or Output

selection); 8-bit Input Port register, 8-bit Output Port register and an 8-bit Polarity

Inversion register (active HIGH or active LOW operation). The system master can enable

the I/Os as either inputs or outputs by writing to the I/O conﬁguration bits. The data for

each input or output is kept in the corresponding Input Port or Output Port register. The

polarity of the read register can be inverted with the Polarity Inversion register. All

registers can be read by the system master. Although pin-to-pin and I²C-bus address

compatible with the PCF8574 series, software changes are required due to the

enhancements and are discussed in Application Note AN469.

The PCA9554/PCA9554A open-drain interrupt output is activated when any input state

differs from its corresponding Input Port register state and is used to indicate to the

system master that an input state has changed. The power-on reset sets the registers to

their default values and initializes the device state machine.

Three hardware pins (A0, A1, A2) vary the ﬁxed I²C-bus address and allow up to eight

devices to share the same I²C-bus/SMBus. The PCA9554A is identical to the PCA9554

except that the ﬁxed I²C-bus address is different allowing up to sixteen of these devices

(eight of each) on the same I²C-bus/SMBus.

2. Features

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

I 5 V tolerant I/Os

I Polarity Inversion register

I Active LOW interrupt output

I Low standby current

I Noise ﬁlter on SCL/SDA inputs

I No glitch on power-up

I Internal power-on reset

I 8 I/O pins which default to 8 inputs

I 0 Hz to 400 kHz clock frequency

12 3 4 5 6 7...30

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与PCA9554ABS3相关器件

型号	品牌	描述	获取价格	数据表
PCA9554ABS3,118	NXP	8-bit I2C-bus and SMBus I/O port with interrupt	获取价格
PCA9554AD	NXP	8-bit I2C and SMBus I/O port with interrupt	获取价格
PCA9554AD,112	NXP	8-bit I2C-bus and SMBus I/O port with interrupt	获取价格
PCA9554AD,118	NXP	8-bit I2C-bus and SMBus I/O port with interrupt	获取价格
PCA9554AD/G	NXP	8 I/O, PIA-GENERAL PURPOSE, PDSO16, 7.50 MM, PLASTIC, MS-013, SOT162-1, SOP-16	获取价格
PCA9554AD/G,518	NXP	PCA9554/PCA9554A - 8-bit I²C-bus and SMBus I/	获取价格

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