参数资料
| 型号： | CAT9554AWI-GT2 |
| 厂商： | ON Semiconductor |
| 文件页数： | 14/14页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 8B 16SOIC |
| 标准包装： | 1 |
| 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（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 标准包装 |
| 包括： | POR |
| 其它名称： | CAT9554AWI-GT2DKR |
CAT9554, CAT9554A
http://onsemi.com
9
The output port register sets the outgoing logic levels of
the I/O ports, defined as outputs by the configuration
register. Bit values in this register have no effect on I/O pins
defined as inputs. Reads from the output port register reflect
the value that is in the flipflop controlling the output, not
the actual I/O pin value.
The polarity inversion register allows the user to invert the
polarity of the input port register data. If a bit in this register
is set (“1”) the corresponding input port data is inverted. If
a bit in the polarity inversion register is cleared (“0”), the
original input port polarity is retained.
The configuration register sets the directions of the ports.
Set the bit in the configuration register to enable the
corresponding port pin as an input with a high impedance
output driver. If a bit in this register is cleared, the
corresponding port pin is enabled as an output. At
powerup, the I/Os are configured as inputs with a weak
pullup resistor to VCC.
Data is transmitted to the CAT9554/9554A registers using
The CAT9554/9554A registers are read according to the
command byte has been sent, the register which was
addressed will continue to be accessed by reads until a new
command byte will be sent.
12
34
5
6
7
8
9
SCL
SDA
WRITE TO
PORT
DATA OUT FROM PORT
S 0100 A2
A0 0
A
A1
000
0 0
00 1
A
DATA 1
A P
acknowledge from slave
acknowledge
from slave
slave address
command byte
data to port
start condition
stop
condition
DATA 1 VALID
Figure 10. Write to Output Port Register
12
34
5
6
7
8
9
SCL
SDA
WRITE TO
REGISTER
S 0100 A2
A0 0
A
A1
000
0 0
01 1/0
DATA 1
A
A P
acknowledge from slave
acknowledge
from slave
slave address
command byte
data to register
start condition
stop
condition
Figure 11. Write to Configuration or Polarity Inversion Register
R/W
tpv
相关PDF资料 |
PDF描述 |
|---|---|
| CQ82C55A | IC I/O EXPANDER 24B 44MQFP |
| ATMEGA88PV-10MUR | MCU AVR 8KB FLASH 10MHZ 32QFN |
| PCA9535EMTTXG | 16-BIT I/O EXPANDER |
| JLC1562BFEL | IC BUS INTRFACE I2C I/O 16SOEIAJ |
| ATMEGA8515-16JUR | MCU AVR 8KB FLASH 16MHZ 44PLCC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT9554AYGI | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT9554AYGI-T2 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT9554AYI-G | 功能描述:接口-I/O扩展器 8-Bit Parallel IO 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 |
| CAT9554AYI-GT2 | 功能描述:接口 - 专用 I2C/SMBUS Expander 8B,w/Int RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| CAT9554HV4 | 制造商:Catalyst Semiconductor 功能描述: |
发布紧急采购，3分钟左右您将得到回复。