| Family | PCA9545 |
| Type | Multiplexer |
| Logic Function | I2C Multiplexer |
| Package | TSSOP |
| Power-supply voltage | 2.5|3.3|5V |
| Polarity | Non-Inverting |
| Input Signal Type | Single-Ended |
| Manufacturer Packaging | Tube |
| Manufacturer packaging quantity | 1875 |
| Power Dissipation | 400 mW |
| Configuration | 1 x 4:1 |
| Output Signal Type | Single-Ended |
| Number of Inputs per Chip | 4 |
| Number of Outputs per Chip | 1 |
| Maximum On Resistance | 55Ohm |
| Typical Quiescent Current | 25uA |
| Maximum Frequency | 0.4MHz |
| Number of Selection Inputs per Element | 2 |
| Parity Invert Input | No |
| Number of Elements per Chip | 1 |
| Maximum Quiescent Current | 100uA |
| Maximum Low Level Output Current | 10mA(Typ) |
| Maximum Propagation Delay Time | 0.3ns@2.3V to 5.5V |
| Propagation Delay Test Condition | 15pF |
| Number of Input Enables per Element | 4 |
| Number of Output Enables per Element | 1 |
| Tolerant I/Os | 5V Inputs |
| Minimum Input Voltage | 2.3V |
| Input Voltage | 2.5V, 3.3V, 5V |
| Maximum Input Voltage | 5.5V |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | 85°C |
| Mounting | Surface Mount |
| Packaging | Tube |
| Pins | 20 |
| Width | 4.5 mm |
| Height | 0.95 mm |
| Length | 6.6 mm |
| Product Type | Multiplexer |