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PCA9539APW PDF预览

PCA9539APW

更新时间: 2024-01-06 10:48:18
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光电二极管
页数 文件大小 规格书
39页 2401K
描述
Low-voltage 16-bit I2C-bus I/O port with interrupt and reset

PCA9539APW 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete包装说明:TSSOP, TSSOP24,.25
Reach Compliance Code:unknown风险等级:5.3
JESD-30 代码:R-PDSO-G24JESD-609代码:e3
长度:7.8 mm湿度敏感等级:1
位数:16I/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:TSSOP
封装等效代码:TSSOP24,.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):225
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
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:MATTE TIN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
Base Number Matches:1

PCA9539APW 数据手册

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PCA9539A  
NXP Semiconductors  
Low voltage 16-bit I2C-bus I/O port with interrupt and reset  
Table 12. Configuration port 1 register (address 07h)  
Bit  
7
C1.7  
1
6
C1.6  
1
5
C1.5  
1
4
C1.4  
1
3
C1.3  
1
2
C1.2  
1
1
C1.1  
1
0
C1.0  
1
Symbol  
Default  
6.3 I/O port  
When an I/O is configured as an input, FETs Q1 and Q2 are off, which creates a  
high-impedance input. The input voltage may be raised above VDD to a maximum of 5.5 V.  
If the I/O is configured as an output, Q1 or Q2 is enabled, depending on the state of the  
Output port register. In this case, there are low-impedance paths between the I/O pin and  
either VDD or VSS. The external voltage applied to this I/O pin should not exceed the  
recommended levels for proper operation.  
data from  
output port  
shift register  
register data  
configuration  
register  
V
DD  
data from  
shift register  
Q1  
D
Q
FF  
write  
configuration  
pulse  
D
Q
CK  
Q
FF  
P0_0 to P0_7  
P1_0 to P1_7  
Q2  
write pulse  
CK  
ESD  
protection  
diode  
output port  
register  
input port  
register  
V
SS  
D
Q
input port  
register data  
FF  
read pulse  
CK  
to INT  
polarity  
inversion  
register  
data from  
shift register  
polarity  
inversion  
register data  
D
Q
FF  
write polarity  
pulse  
CK  
002aah246  
At power-on reset, all registers return to default values.  
Fig 6. Simplified schematic of the I/Os (P0_0 to P0_7, P1_0 to P1_7)  
6.4 Power-on reset  
When power (from 0 V) is applied to VDD, an internal power-on reset holds the PCA9539A  
in a reset condition until VDD has reached VPOR. At that time, the reset condition is  
released and the PCA9539A registers and I2C-bus/SMBus state machine initializes to  
their default states. After that, VDD must be lowered to below VPORF and back up to the  
operating voltage for a power-reset cycle. See Section 8.2 “Power-on reset requirements”.  
PCA9539A  
All information provided in this document is subject to legal disclaimers.  
© NXP B.V. 2012. All rights reserved.  
Product data sheet  
Rev. 1 — 26 September 2012  
8 of 39  

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