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PCA9538PWG4 PDF预览

PCA9538PWG4

更新时间： 2024-11-07 04:54:07
品牌 Logo 应用领域
德州仪器 - TI 并行IO端口微控制器和处理器外围集成电路光电二极管输出元件时钟
页数 文件大小 规格书
29页 480K
描述
REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS

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PCA9538PWG4 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：TSSOP
包装说明：TSSOP-16针数：16
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：5.21Is Samacsys：N
最大时钟频率：0.4 MHzJESD-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：1.2 mm
子类别：Parallel IO Ports最大压摆率：0.175 mA
最大供电电压：5.5 V最小供电电压：2.3 V
标称供电电压：2.5 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：NOT SPECIFIED宽度：4.4 mm
uPs/uCs/外围集成电路类型：PARALLEL IO PORT, GENERAL PURPOSEBase Number Matches：1

PCA9538PWG4 数据手册

 浏览型号PCA9538PWG4的Datasheet PDF文件第2页浏览型号PCA9538PWG4的Datasheet PDF文件第3页浏览型号PCA9538PWG4的Datasheet PDF文件第4页浏览型号PCA9538PWG4的Datasheet PDF文件第5页浏览型号PCA9538PWG4的Datasheet PDF文件第6页浏览型号PCA9538PWG4的Datasheet PDF文件第7页 
PCA9538  
REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER  
WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS  
www.ti.com  
SCPS126D–SEPTEMBER 2006–REVISED MARCH 2007  
FEATURES  
•
Low Standby Current Consumption of  
1 µA Max  
•
Power-Up With All Channels Configured as  
Inputs  
•
•
•
•
I2C to Parallel Port Expander  
Open-Drain Active-Low Interrupt Output  
Active-Low Reset Input  
•
•
•
No Glitch on Power Up  
Noise Filter on SCL/SDA Inputs  
Latched Outputs With High-Current Drive  
Maximum Capability for Directly Driving LEDs  
Operating Power-Supply Voltage Range of  
2.3 V to 5.5 V  
•
•
Latch-Up Performance Exceeds 100 mA Per  
JESD 78, Class II  
•
•
•
5-V Tolerant I/O Ports  
400-kHz Fast I2C Bus  
ESD Protection Exceeds JESD 22  
–
–
–
2000-V Human-Body Model (A114-A)  
200-V Machine Model (A115-A)  
Two Hardware Address Pins Allow up to Four  
Devices on the I2C/SMBus  
•
•
Input/Output Configuration Register  
Polarity Inversion Register  
1000-V Charged-Device Model (C101)  
RGV PACKAGE  
(TOP VIEW)  
DB, DBQ, DGV, DW, OR PW PACKAGE  
(TOP VIEW)  
RGT PACKAGE  
(TOP VIEW)  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
A0  
A1  
V
CC  
16 15 14 13  
16 15 14 13  
1
12  
RESET  
P0  
SCL  
INT  
P7  
SDA  
SCL  
INT  
P7  
P6  
P5  
1
12  
RESET  
SCL  
INT  
P7  
RESET  
P0  
2
3
4
11  
10  
9
2
3
11  
10  
P0  
P1  
P2  
P1  
P1  
P2  
P3  
4
9
P6  
P2  
P6  
5
6
7
8
5
6
7
8
GND  
P4  
DESCRIPTION/ORDERING INFORMATION  
This 8-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.3-V to 5.5-V VCC operation. It  
provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial  
clock (SCL), serial data (SDA)].  
The PCA9538 consists of one 8-bit Configuration (input or output selection), Input Port, Output Port, and Polarity  
Inversion (active high or active low) registers. At power on, the I/Os are configured as inputs. However, 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 system master can reset the PCA9538 in the event of a timeout or other improper operation by asserting a  
low in the RESET input. The power-on reset puts the registers in their default state and initializes the I2C/SMBus  
state machine. The RESET pin causes the same reset/initialization to occur without powering down the part.  
The PCA9538 open-drain interrupt (INT) 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.  
INT can be connected to the interrupt input of a microcontroller. By sending an interrupt signal on this line, the  
remote I/O can inform the microcontroller if there is incoming data on its ports without having to communicate via  
the I2C bus. Thus, the PCA9538 can remain a simple slave device.  
The device outputs (latched) have high-current drive capability for directly driving LEDs. It has low current  
consumption.  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2006–2007, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
1234567...29

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PCA9538PWG4 替代型号

型号 品牌 替代类型 描述 数据表
PCA9538DB TI

完全替代

 REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIG
PCA9538PWR TI

功能相似

 REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIG
PCA9538PW TI

功能相似

 REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIG

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