Datasheet > PCA9538BS,118

PCA9538BS,118

更新时间： 2024-02-10 01:16:46

品牌	Logo	应用领域
恩智浦 - NXP		PC 外围集成电路
页数	文件大小	规格书
34页	450K
描述
PCA9538 - 8-bit I²C-bus and SMBus low power I/O port with interrupt and reset QFN 16-Pin

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PCA9538BS,118 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：	HVQCCN, LCC16,.16SQ,25
针数：	16	Reach Compliance Code：	compliant
HTS代码：	8542.39.00.01	风险等级：	1.13
JESD-30 代码：	S-PQCC-N16	JESD-609代码：	e4
长度：	4 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,.16SQ,25	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 (Ni/Pd/Au)	端子形式：	NO LEAD
端子节距：	0.65 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	30	宽度：	4 mm
uPs/uCs/外围集成电路类型：	PARALLEL IO PORT, GENERAL PURPOSE	Base Number Matches：	1

PCA9538BS,118 数据手册

PCA9538

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

reset

Rev. 8 — 8 November 2017

Product data sheet

1. General description

The PCA9538 is a 16-pin CMOS device that provides 8 bits of General Purpose parallel

Input/Output (GPIO) expansion with interrupt and reset for I²C-bus/SMBus applications

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

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

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

The PCA9538 consists 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 Input

Port register can be inverted with the Polarity Inversion register. All registers can be read

by the system master.

The PCA9538 is identical to the PCA9554 except for the removal of the internal I/O

pull-up resistor which greatly reduces power consumption when the I/Os are held LOW,

replacement of A2 with RESET and different address range.

The PCA9538 open-drain interrupt output (INT) 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. The RESET pin causes the same

reset/initialization to occur without de-powering the device.

Two hardware pins (A0 and A1) vary the fixed I²C-bus address and allow up to four

devices to share the same I²C-bus/SMBus.

2. Features and benefits

 8-bit I²C-bus GPIO with interrupt and reset

 Operating power supply voltage range of 2.3 V to 5.5 V (3.0 V to 5.5 V

for PCA9538PW/Q900)

 5 V tolerant I/Os

 Polarity Inversion register

 Active LOW interrupt output

 Active LOW reset input

 Low standby current

 Noise filter on SCL/SDA inputs

 No glitch on power-up

12 3 4 5 6 7...34

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与PCA9538BS,118相关器件

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PCA9538D	NXP	8-bit I2C and SMBus low power I/O port with interrupt and reset	获取价格
PCA9538D,112	NXP	PCA9538 - 8-bit I²C-bus and SMBus low power I	获取价格
PCA9538D,118	NXP	PCA9538 - 8-bit I²C-bus and SMBus low power I	获取价格
PCA9538DB	TI	REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIG	获取价格
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PCA9538DBQR	TI	REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIG	获取价格

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