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| Part Number | PI4IOE5V9539LEX | PI4IOE5V9535LEX | PI4IOE5V9538LEX | PI4IOE5V9539LE | 
|---|---|---|---|---|
| Manufacturer | Diodes Incorporated | Diodes Incorporated | Diodes Incorporated | Diodes Incorporated | 
| Product Status | Active | Active | Active | Active | 
| Number of I/O | 16 | 16 | 8 | 16 | 
| Interface | I²C | I²C | SMBus | I²C | 
| Interrupt Output | Yes | Yes | Yes | Yes | 
| Features | - | - | POR | - | 
| Output Type | - | - | Open Drain | - | 
| Current - Output Source/Sink | - | - | - | - | 
| Clock Frequency | 400 kHz | 400 kHz | 400 kHz | 400 kHz | 
| Voltage - Supply | 2.3V ~ 5.5V | 2.3V ~ 5.5V | 2.3V ~ 5.5V | 2.3V ~ 5.5V | 
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | - | -40°C ~ 85°C | 
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | 
| Package / Case | 24-TSSOP (0.173", 4.40mm Width) | 24-TSSOP (0.173", 4.40mm Width) | 16-TSSOP (0.173", 4.40mm Width) | 24-TSSOP (0.173", 4.40mm Width) | 
| Supplier Device Package | 24-TSSOP | 24-TSSOP | 16-TSSOP | 24-TSSOP |