PCA9557DT vs PCA9557D 对比
详细并排对比 PCA9557DT 出自 Texas Instruments 和 PCA9557D 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
PCA9557D - 8-Bit I2C/SMBus I/O Expander with Reset | TI (Tape & Reel)
PCA9557D ✗ 停产规格对比
| 参数 | PCA9557DT | PCA9557D |
|---|---|---|
| 品牌 | Texas Instruments | Texas Instruments |
| 分类 | Interface ICs | Interface ICs |
| 生命周期状态 | 不推荐新设计 | 停产 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $0.00 | $0.71 |
| Device Type | 8-bit I2C/SMBus low-power I/O expander | — |
| Number of I/O Ports | 8 | — |
| Operating Supply Voltage Range | 2.3 V to 5.5 V | — |
| I2C/SMBus Clock Frequency | 400 kHz | — |
| Standby Current Consumption | 1 uA maximum | — |
| 接口 | I2C and SMBus | I2C, SMBus |
| 输出类型 | Open-drain and push-pull | — |
| Output Source Current | 10 mA | — |
| Output Sink Current | 25 mA | — |
| Reset Function | Reset register and reset input functionality | — |
| Configuration Function | Configuration register | — |
| Interrupt Output | No interrupt output | — |
| Programmability | Not verified | — |
| 工作温度 | -40 C to +85 C | -40 C to +85 C |
| 封装 | 16-SOIC | 16-SOIC (DR, 7.5 mil pitch) |
| Package Width | 3.90 mm | — |
| 安装类型 | Surface mount | Surface Mount |
| 生命周期状态 | Obsolete according to Digi-Electronics listing | — |
| RoHS 状态 | [DATA_NEEDED: RoHS status] | Compliant |
| REACH Status | [DATA_NEEDED: REACH status] | — |
| Number of I/O Bits | — | 8 |
| Bus Frequency (Max) | — | 400 kHz |
| Supply Voltage (VCC) | — | 2.3 V to 5.5 V |
| Standby Current (Max) | — | 1 uA |
| Output Drive Current per Bit | — | [DATA_NEEDED: per-bit source/sink mA rating] |
| I/O Voltage Tolerance | — | 5.5 V tolerant |
| Reset Input | — | Active-low hardware RESET + software reset (general call) |
| Interrupt Output (INT) | — | Yes, open-drain |
| Slave Address Pins | — | A0, A1, A2 (3 pins, 8 addresses within family) |
| MSL 等级 | — | 1 (unlimited floor life) |
| Lead-Free | — | Yes |
| Configuration Registers | — | Input/output direction registers, polarity inversion |