参数资料
| 型号： | PCA9554AD,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 34/35页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 8B 16SOIC |
| 标准包装： | 1,000 |
| 接口： | I²C，SM 总线 |
| 输入/输出数： | 8 |
| 中断输出： | 是 |
| 频率 - 时钟： | 400kHz |
| 电源电压： | 2.3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SO |
| 包装： | 带卷 (TR) |
| 包括： | POR |
| 其它名称： | 935269195118 PCA9554AD-T PCA9554AD-T-ND |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页当前第34页第35页
PCA9554_9554A
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 9 — 19 March 2013
8 of 35
NXP Semiconductors
PCA9554; PCA9554A
8-bit I2C-bus and SMBus I/O port with interrupt
6.1.4 Register 2 - Polarity Inversion register
This register allows the user to invert the polarity of the Input Port register data. If a bit in
this register is set (written with ‘1’), the corresponding Input Port data is inverted. If a bit in
this register is cleared (written with a ‘0’), the Input Port data polarity is retained.
6.1.5 Register 3 - Configuration register
This register configures the directions of the I/O pins. If a bit in this register is set, the
corresponding port pin is enabled as an input with high-impedance output driver. If a bit in
this register is cleared, the corresponding port pin is enabled as an output. At reset, the
I/Os are configured as inputs with a weak pull-up to VDD.
6.2 Power-on reset
When power is applied to VDD, an internal Power-On Reset (POR) holds the
PCA9554/PCA9554A in a reset condition until VDD has reached VPOR. At that point, the
reset condition is released and the PCA9554/PCA9554A registers and 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.
Table 7.
Register 2 - Polarity Inversion register bit description
Legend: * default value.
Bit
Symbol
Access
Value
Description
7
N7
R/W
0*
inverts polarity of Input Port register data
0 = Input Port register data retained (default value)
1 = Input Port register data inverted
6N6
R/W
0*
5N5
R/W
0*
4N4
R/W
0*
3N3
R/W
0*
2N2
R/W
0*
1N1
R/W
0*
0N0
R/W
0*
Table 8.
Register 3 - Configuration register bit description
Legend: * default value.
Bit
Symbol
Access
Value
Description
7
C7
R/W
1*
configures the directions of the I/O pins
0 = corresponding port pin enabled as an output
1 = corresponding port pin configured as input
(default value)
6C6
R/W
1*
5C5
R/W
1*
4C4
R/W
1*
3C3
R/W
1*
2C2
R/W
1*
1C1
R/W
1*
0C0
R/W
1*
相关PDF资料 |
PDF描述 |
|---|---|
| PCA9674APW,112 | IC I/O EXPANDER I2C 8B 16TSSOP |
| PCA9670BS,118 | IC I/O EXPANDER I2C 8B 16HVQFN |
| PCA9674BS,118 | IC I/O EXPANDER I2C 8B 16HVQFN |
| PCA8574ATS,118 | IC I/O EXPANDER I2C 8B 20SSOP |
| PCA9554DB,118 | IC I/O EXPANDER I2C 8B 16SSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PCA9554ADB | 功能描述:I2C 接口集成电路 8-BIT I2C FM TP GPIO INT PU RoHS:否 制造商:NXP Semiconductors 电源电压-最大:5.5 V 电源电压-最小:2.3 V 最大工作频率:400 KHz 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-16 |
| PCA9554ADB,112 | 功能描述:I2C 接口集成电路 8-BIT I2C FM TP GPIO RoHS:否 制造商:NXP Semiconductors 电源电压-最大:5.5 V 电源电压-最小:2.3 V 最大工作频率:400 KHz 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-16 |
| PCA9554ADB,118 | 功能描述:I2C 接口集成电路 8-BIT I2C FM TP GPIO INT PU RoHS:否 制造商:NXP Semiconductors 电源电压-最大:5.5 V 电源电压-最小:2.3 V 最大工作频率:400 KHz 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-16 |
| PCA9554ADB,118-CUT TAPE | 制造商:NXP 功能描述:PCA9554 Series 8-bit I2C-bus and SMBus I/O port w/ Interrupt - SSOP-16 |
| PCA9554ADBG4 | 功能描述:接口-I/O扩展器 Rem 8B I2C and SMBus I/O Expander RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。