PCA9500PW vs PCA9518PW Comparison
Detailed side-by-side comparison of PCA9500PW by NXP Semiconductors and PCA9518PW by NXP Semiconductors. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Specification Comparison
| Parameter | PCA9500PW | PCA9518PW |
|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors |
| Category | Interface ICs | Interface ICs |
| Lifecycle Status | Active | Active |
| Product Type | 8-bit I2C-bus and SMBus I/O port expander with EEPROM | Expandable 5-channel I2C-bus hub |
| Number of I/O Pins | 8 pins | — |
| I/O Direction Control | Independent input or output configuration per pin | — |
| I/O Port Type | Quasi-bidirectional | — |
| Integrated EEPROM Capacity | 2 kbit | — |
| Bus Interface | I2C-bus and SMBus | — |
| Maximum Bus Frequency | 400 kHz | — |
| Supply Voltage Range | 2.5 V to 3.6 V | 2.3 V to 3.6 V |
| Operating Temperature Range | -40 °C to +85 °C | — |
| Hardware Address Inputs | 3 address pins | — |
| Maximum Devices on One Bus | 8 devices | — |
| Package | 16-pin TSSOP | 20-pin TSSOP |
| Mounting Type | Surface mount | Surface Mount |
| GPIO and EEPROM Addressing | Two separate devices visible to the bus master | — |
| Reference Interface | PCF8574-compatible configuration method | — |
| RoHS Compliance | [DATA_NEEDED: verified RoHS status] | — |
| REACH Compliance | [DATA_NEEDED: verified REACH status] | — |
| Automotive Qualification | [DATA_NEEDED: AEC-Q100 qualification status] | — |
| Interface | — | I2C and SMBus |
| Process Technology | — | BiCMOS |
| Downstream Channels | — | 5 channels |
| Bus Communication Frequency | — | 400 kHz |
| Partial Power-Down Input Threshold | — | VDD below 2.0 V |
| Partial Power-Down Bus Behavior | — | I2C-bus I/O pins remain high impedance |
| Manufacturer | — | NXP Semiconductors |
| Function | — | I2C bus buffering and expansion |
| Output Type | — | Push-pull |
| Operating Voltage | — | 2.3 V to 3.6 V |
| Partial Power-Down Support | — | Yes |
| I2C Bus Isolation | — | High-impedance state during partial power-down |
| Bus Protocol | — | I2C / SMBus |
| RoHS Status | — | unknown |
| REACH Status | — | unknown |