PCA9554 是一个 CMOS 器件,为 I2C 和 SMBus 兼容应用提供 8 位并行输入/输出端口扩展。此 I/O 扩展器在需要附加 I/O 的应用中提供了简单方案:传感器、电源开关、LED、按钮和风扇。PCA9554 包括输入端口寄存器、输出端口寄存器、配置寄存器、极性反向寄存器和 I2C/SMBus 兼容串行接口。八个 I/O 中的任何一个都可通过写入到配置寄存器来配置为输入或输出。主系统可以通过写入有效高电平极性反向寄存器来反向 PCA9554 输入数据。PCA9554 具有有效低电平中断输出,用于向主系统指示输出状态已发生改变。该器件的扩展寻址功能允许最多 8 个器件共享同一总线。
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Package Type
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MSL Type
MSL Temp (°C)
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Container Qty.
ON Target
I/O
Cascadable
VCC Min (V)
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LED Blink/PWM
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参考价格
已停产
Pb
A
H
P
TSSOP-16
1
260
REEL
2000
No
8
8 Slave ID Addresses
2.3
5.5
Yes
Yes
No
10
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可靠性数据
Die Related Summary Data
Device: PCA9554DTR2G
Equivalent to wafer fab process: CMOS SUB
产品技术
产品技术
等效器件小时
平均故障间隔时间/平均无故障时间(按小时计算)
FITS
CMOS SUB
3
7566029322
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Re-calculate Data
Data is based on the following assumptions.
Note: The temperature and confidence level may be adjusted to your requirements.
Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)