P82B715D vs PCF8574PW 对比
详细并排对比 P82B715D 出自 Texas Instruments 和 PCF8574PW 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。
Texas Instruments
PCF8574PW - 8-bit I2C I/O Expander 20-TSSOP | Texas Instruments (Tape & Reel)
PCF8574PW ✓ 量产中规格对比
| 参数 | P82B715D | PCF8574PW |
|---|---|---|
| 品牌 | Texas Instruments | Texas Instruments |
| 分类 | Interface ICs | Interface ICs |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $0.00 | $0.77 |
| Product Type | 2-bit bidirectional I2C/SMBus buffer and cable extender | — |
| Operating Supply Voltage Range | 3 V to 12 V | — |
| Nominal Maximum Bus Frequency | 400 kHz | — |
| Bidirectional Data Transfer | Supported | — |
| Number of Buffered Bits | 2 | — |
| Extended Bus Capacitance | 3 nF | — |
| Conventional I2C Bus Capacitance | 400 pF | — |
| 电源电流 | 22 mA | — |
| 输入电容 | 3000 pF | — |
| Delay Time | 250 ns | — |
| 封装 | 8-pin SOIC (D) | 20-pin TSSOP (PW) |
| 工作温度范围 | -40 C to +85 C | — |
| 安装类型 | Surface mount | Surface Mount |
| Bus Type | I2C/SMBus | — |
| Architecture | Unidirectional analog current amplification | — |
| RoHS 状态 | [DATA_NEEDED: RoHS status] | Compliant |
| REACH Status | [DATA_NEEDED: REACH status] | — |
| 功能 | — | I/O Expander |
| Number of I/O | — | 8 |
| 接口 | — | I2C (SMBus compatible) |
| Clock Frequency (Max) | — | 100 kHz |
| I2C Address Base | — | 0x20 (PCF8574A: 0x38) |
| Supply Voltage (VCC) | — | 2.5 V to 6 V |
| Supply Current (Standby) | — | 2.5 uA typical |
| Interrupt Output | — | Yes (active-low INT) |
| Hardware Address Pins | — | 3 (A0, A1, A2) |
| Max Devices on Bus | — | 8 (16 combined with PCF8574A) |
| Output Drive (Source/Sink) | — | 25 mA / 25 mA per I/O |
| I/O Type | — | Quasi-bidirectional (no direction register) |
| 工作温度 | — | -40 C to +85 C |
| MSL 等级 | — | 1 (unlimited floor life) |