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| Part Number | PCF8574ADWRE4 | PCF8574ADWRG4 | PCF8574APWRE4 | PCF8574DWRE4 | PCF8574ADWE4 |
|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Obsolete | Obsolete | Discontinued at Digi-Key | Discontinued at Digi-Key | Discontinued at Digi-Key |
| Number of I/O | 8 | 8 | 8 | 8 | 8 |
| Interface | I²C | I²C | I²C | I²C | I²C |
| Interrupt Output | Yes | Yes | Yes | Yes | Yes |
| Features | POR | POR | POR | POR | POR |
| Output Type | Push-Pull | Push-Pull | Push-Pull | Push-Pull | Push-Pull |
| Current - Output Source/Sink | 1mA, 25mA | 1mA, 25mA | 1mA, 25mA | 1mA, 25mA | 1mA, 25mA |
| Clock Frequency | 100 kHz | 100 kHz | 100 kHz | 100 kHz | 100 kHz |
| Voltage - Supply | 2.5V ~ 6V | 2.5V ~ 6V | 2.5V ~ 6V | 2.5V ~ 6V | 2.5V ~ 6V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 20-TSSOP (0.173", 4.40mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 16-SOIC | 16-SOIC | 20-TSSOP | 16-SOIC | 16-SOIC |
