参数资料
型号: PCA9554AD,112
厂商: NXP Semiconductors
文件页数: 2/35页
文件大小: 0K
描述: IC I/O EXPANDER I2C 8B 16SOIC
产品培训模块: I²C Bus Fundamentals
特色产品: NXP - I2C Interface
标准包装: 48
接口: I²C,SM 总线
输入/输出数: 8
中断输出:
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: 管件
包括: POR
产品目录页面: 826 (CN2011-ZH PDF)
配用: 568-4002-ND - DEMO BOARD I2C
其它名称: 568-1051-5
935269195112
PCA9554AD
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
10 of 35
NXP Semiconductors
PCA9554; PCA9554A
8-bit I2C-bus and SMBus I/O port with interrupt
6.5 Device address
6.6 Bus transactions
Data is transmitted to the PCA9554/PCA9554A registers using the Write mode as shown
in Figure 11 and Figure 12. Data is read from the PCA9554/PCA9554A registers using the
Read mode as shown in Figure 13 and Figure 14. These devices do not implement an
auto-increment function, so once a command byte has been sent, the register which was
addressed will continue to be accessed by reads until a new command byte has been
sent.
Fig 9.
PCA9554 device address
Fig 10. PCA9554A device address
002aac494
0
1
0
A2
A1
A0 R/W
fixed
slave address
hardware
selectable
002aac495
0
1
A2
A1
A0 R/W
fixed
slave address
hardware
selectable
Fig 11. Write to Output Port register
1
0
A2 A1 A0
0
A
S0
START condition
R/W
acknowledge
from slave
002aac472
A
acknowledge
from slave
SCL
SDA
A
write to port
data out
from port
P
tv(Q)
9
8
7
6
5
4
3
2
1
command byte
acknowledge
from slave
data to port
DATA 1
slave address
0000001
0
STOP
condition
data 1 valid
Fig 12. Write to Configuration register or Polarity Inversion register
1
0
A2 A1 A0
0
A
S0
START condition
R/W
acknowledge
from slave
002aac473
A
acknowledge
from slave
SCL
SDA
A
data to
register
P
9
8
7
6
5
4
3
2
1
command byte
acknowledge
from slave
data to register
DATA
slave address
000001 1/0
0
STOP
condition
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参数描述
PCA9554AD118 制造商:NXP Semiconductors 功能描述:
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