PCA9500PW vs PCA9518PW 对比
详细并排对比 PCA9500PW 出自 NXP Semiconductors 和 PCA9518PW 出自 NXP Semiconductors。对比关键规格、电气参数、封装、生命周期状态、价格和供货情况，以确定最适合您设计需求的元器件。
规格对比
| 参数 | PCA9500PW | PCA9518PW |
|---|---|---|
| 品牌 | NXP Semiconductors | NXP Semiconductors |
| 分类 | Interface ICs | Interface ICs |
| 生命周期状态 | 有效 | 有效 |
| 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 |
| 工作温度范围 | -40 °C to +85 °C | — |
| Hardware Address Inputs | 3 address pins | — |
| Maximum Devices on One Bus | 8 devices | — |
| 封装 | 16-pin TSSOP | 20-pin TSSOP |
| 安装类型 | 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] | — |
| 接口 | — | 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 |
| 功能 | — | I2C bus buffering and expansion |
| 输出类型 | — | 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 状态 | — | unknown |
| REACH Status | — | unknown |