PCA9554DBR vs PCA9534DBR 对比
详细并排对比 PCA9554DBR 出自 Texas Instruments 和 PCA9534DBR 出自 Texas Instruments。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 | PCA9554DBR | PCA9534DBR |
|---|---|---|
| 品牌 | Texas Instruments | Texas Instruments |
| 分类 | Interface ICs | Interface ICs |
| 生命周期状态 | 有效 | 有效 |
| 功能 | 8-bit I2C/SMBus I/O expander with interrupt | — |
| Number of I/O Lines | 8 | — |
| Operating Voltage Range | 2.3 V to 5.5 V | — |
| 接口 | I2C/SMBus | — |
| Maximum Bus Frequency | 400 kHz | — |
| Configuration Registers | Present | Available |
| Interrupt Output | Present | Available |
| Weak Pull-Ups | Present | — |
| 封装 | 16-pin SSOP | 16-pin SSOP, 7.50 mm body |
| 安装类型 | Surface mount | Surface mount |
| Device Class | General-purpose remote I/O expander | — |
| 输出配置 | Individually configurable input/output ports | — |
| Bus Signals | SCL and SDA | — |
| Compliance Status | [DATA_NEEDED: RoHS status] | — |
| 工作温度 | [DATA_NEEDED: operating temperature range] | -40 °C to 85 °C |
| 电源电流 | [DATA_NEEDED: typical and maximum supply current] | — |
| Output Drive Capability | [DATA_NEEDED: output current and output voltage characteristics] | — |
| Input Threshold | [DATA_NEEDED: input voltage thresholds] | — |
| Address | [DATA_NEEDED: I2C device address] | — |
| Pinout | [DATA_NEEDED: complete manufacturer pin names and electrical descriptions] | — |
| Device Type | — | 8-bit I2C/SMBus I/O expander |
| Number of GPIO Ports | — | 8 ports |
| Supply Voltage Range | — | 2.3 V to 5.5 V |
| I2C Bus Frequency | — | 400 kHz |
| Bus Interface | — | I2C/SMBus |
| Technology | — | CMOS |
| Address Configuration Pins | — | 3 pins: A0, A1, and A2 |
| Maximum Devices per Bus | — | 8 devices |
| Internal I/O Pull-Up Resistors | — | Not fitted |
| PCF8574 Hardware Compatibility | — | Pin-to-pin and I2C address compatible; software changes required |
| RoHS 状态 | — | [DATA_NEEDED: RoHS status] |
| REACH Status | — | [DATA_NEEDED: REACH status] |
| AEC-Q100 Qualification | — | [DATA_NEEDED: AEC-Q100 qualification] |
| Lead-Free Status | — | [DATA_NEEDED: lead-free status] |
| Halogen-Free Status | — | [DATA_NEEDED: halogen-free status] |