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PCA9535C PDF预览

PCA9535C

更新时间: 2024-02-01 08:06:54
品牌 Logo 应用领域
恩智浦 - NXP /
页数 文件大小 规格书
32页 191K
描述
16-bit I2C-bus and SMBus, low power I/O port with interrupt

PCA9535C 技术参数

生命周期:Obsolete零件包装代码:QFN
包装说明:HVQCCN, LCC24/28,.14X.2,20针数:24
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.68
JESD-30 代码:R-PQCC-N24长度:5.5 mm
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:HVQCCN
封装等效代码:LCC24/28,.14X.2,20封装形状:RECTANGULAR
封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE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端子形式:NO LEAD
端子节距:0.5 mm端子位置:QUAD
宽度:3.5 mmuPs/uCs/外围集成电路类型:PARALLEL IO PORT, GENERAL PURPOSE
Base Number Matches:1

PCA9535C 数据手册

 浏览型号PCA9535C的Datasheet PDF文件第5页浏览型号PCA9535C的Datasheet PDF文件第6页浏览型号PCA9535C的Datasheet PDF文件第7页浏览型号PCA9535C的Datasheet PDF文件第9页浏览型号PCA9535C的Datasheet PDF文件第10页浏览型号PCA9535C的Datasheet PDF文件第11页 
PCA9535; PCA9535C  
NXP Semiconductors  
16-bit I2C-bus and SMBus, low power I/O port with interrupt  
6.2.5 Registers 6 and 7: Configuration registers  
This register configures the directions of the I/O pins. If a bit in this register is set (written  
with ‘1’), the corresponding port pin is enabled as an input with high-impedance output  
driver. If a bit in this register is cleared (written with ‘0’), the corresponding port pin is  
enabled as an output. At reset, the device's ports are inputs.  
Table 11. Configuration port 0 register  
Bit  
7
C0.7  
1
6
C0.6  
1
5
C0.5  
1
4
C0.4  
1
3
C0.3  
1
2
C0.2  
1
1
C0.1  
1
0
C0.0  
1
Symbol  
Default  
Table 12. Configuration port 1 register  
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 Power-on reset  
When power is applied to VDD, an internal power-on reset holds the PCA9535/PCA9535C  
in a reset condition until VDD has reached VPOR. At that point, the reset condition is  
released and the PCA9535/PCA9535C registers and SMBus state machine will initialize  
to their default states. Thereafter, VDD must be lowered below 0.2 V to reset the device.  
For a power reset cycle, VDD must be lowered below 0.2 V and then restored to the  
operating voltage.  
6.4 I/O port  
When an I/O is configured as an input on PCA9535, FETs Q1 and Q2 are off, creating a  
high impedance input. The input voltage may be raised above VDD to a maximum of 5.5 V.  
In the case of PCA9535C, FET Q1 has been removed and the open-drain FET Q2 will  
function the same as PCA9535.  
If the I/O is configured as an output, then on PCA9535 either Q1 or Q2 is on, depending  
on the state of the Output Port register. Care should be exercised if an external voltage is  
applied to an I/O configured as an output because of the low-impedance path that exists  
between the pin and either VDD or VSS  
.
PCA9535_PCA9535C_3  
© NXP B.V. 2007. All rights reserved.  
Product data sheet  
Rev. 03 — 4 October 2007  
8 of 32  

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