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PCA9555DWG4 PDF预览

PCA9555DWG4

更新时间： 2024-02-04 17:38:12
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
35页 817K
描述
REMOTE 16-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS

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PCA9555DWG4 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：SOIC包装说明：SOIC-24
针数：24Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.17Is Samacsys：N
最大时钟频率：0.4 MHzJESD-30 代码：R-PDSO-G24
JESD-609代码：e4长度：15.4 mm
湿度敏感等级：1位数：16
I/O 线路数量：16端口数量：2
端子数量：24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：SOP封装等效代码：SOP24,.4
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
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：2.65 mm
子类别：Parallel IO Ports最大压摆率：0.2 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：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：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：7.5 mm
uPs/uCs/外围集成电路类型：PARALLEL IO PORT, GENERAL PURPOSEBase Number Matches：1

PCA9555DWG4 数据手册

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PCA9555  
www.ti.com ......................................................................................................................................................... SCPS131E–AUGUST 2005–REVISED MAY 2008  
REMOTE 16-BIT I2C AND SMBus I/O EXPANDER  
WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS  
1
FEATURES  
•
Low Standby-Current Consumption of  
1 µA Max  
I2C to Parallel Port Expander  
Open-Drain Active-Low Interrupt Output  
5-V Tolerant I/O Ports  
•
•
Polarity Inversion Register  
Latched Outputs With High-Current Drive  
Capability for Directly Driving LEDs  
•
•
•
•
•
•
•
•
Latch-Up Performance Exceeds 100 mA Per  
JESD 78, Class II  
ESD Protection Exceeds JESD 22  
Compatible With Most Microcontrollers  
400-kHz Fast I2C Bus  
–
–
–
2000-V Human-Body Model (A114-A)  
200-V Machine Model (A115-A)  
Address by Three Hardware Address Pins for  
Use of up to Eight Devices  
1000-V Charged-Device Model (C101)  
DB, DBQ, DGV, DW, OR PW PACKAGE  
(TOP VIEW)  
RGE PACKAGE  
(TOP VIEW)  
1
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
INT  
A1  
V
CC  
2
SDA  
SCL  
A0  
24 23 22 21 20 19  
3
A2  
1
2
3
4
5
6
18 A0  
P00  
P01  
P02  
P03  
P04  
P05  
4
P00  
P01  
P02  
P03  
P04  
P05  
P06  
P07  
GND  
17 P17  
16 P16  
15 P15  
14 P14  
5
P17  
P16  
P15  
P14  
P13  
P12  
P11  
P10  
6
7
8
P13  
13  
9
7
8 9 10 11 12  
10  
11  
12  
DESCRIPTION/ORDERING INFORMATION  
This 16-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 PCA9555 consists of two 8-bit Configuration (input or output selection), Input Port, Output Port, and Polarity  
Inversion (active high or active low operation) registers. At power on, the I/Os are configured as inputs. 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 or Output 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 PCA9555 in the event of a timeout or other improper operation by utilizing the  
power-on reset feature, which puts the registers in their default state and initializes the I2C/SMBus state machine.  
The PCA9555 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 PCA9555 can remain a simple slave device.  
1
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 © 2005–2008, 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...35

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PCA9555DWG4 替代型号

型号 品牌 替代类型 描述 数据表
TCA6416APWR TI

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