PCA9548A vs PCA9548APW 对比
详细并排对比 PCA9548A 出自 Texas Instruments 和 PCA9548APW 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。
NXP Semiconductors
PCA9548APW - 8-Channel I2C-Bus Switch with Reset | NXP Semiconductors
PCA9548APW ✓ 量产中规格对比
| 参数 | PCA9548A | PCA9548APW |
|---|---|---|
| 品牌 | Texas Instruments | NXP Semiconductors |
| 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） | $0.79 | $1.55 |
| 功能 | 8-channel bidirectional I2C translating switch | 8-channel I2C-bus bidirectional translating switch with reset |
| Number of Channels | 8 downstream SCx/SDx pairs | 8 (SCx/SDx downstream pairs) |
| Supply Voltage Range | 2.3 V to 5.5 V | — |
| I2C Bus Speed Support | Standard-Mode 100 kHz, Fast-Mode 400 kHz | — |
| Control Interface | I2C/SMBus, single 8-bit control register | — |
| Hardware Address Pins | 3 (A0, A1, A2) - up to 8 devices per bus | — |
| Reset Input | Yes, active-low RESET | — |
| Voltage Translation | Yes, via pass-gate switch voltage referencing | — |
| 工作温度 | [DATA_NEEDED: operating temperature range] | -40 C to +85 C |
| 封装 | 24-TSSOP (PW) | 24-TSSOP (PW, 7.8 mm body) |
| 安装类型 | Surface Mount | Surface Mount |
| 接口类型 | 2-wire bus (SCL/SDA) | — |
| Channel Selection | Individual or any combination of channels | — |
| Power-On Reset | Internal, resets registers to default state | — |
| RoHS 状态 | Compliant | — |
| 静态电流 | [DATA_NEEDED: quiescent current] | — |
| Address Pins | — | 3 (A0, A1, A2) - up to 8 devices on bus (64 channels) |
| Supply Voltage (VDD) | — | 2.3 V to 5.5 V |
| I/O Voltage Tolerance | — | Up to 5.5 V (independent of VDD level-shifting) |
| RESET Input | — | Active-low; clears channel selection and deselects all switches |
| I2C Clock Frequency | — | 0 kHz to 400 kHz (Standard and Fast-mode) |
| Channel On-Resistance | — | [DATA_NEEDED: typical Ron at 3.3V / 5V] |
| Standby Current | — | [DATA_NEEDED: typical standby ICC] |
| MSL 等级 | — | 1 (per JEDEC J-STD-020) |
| Lead-Free / RoHS | — | Yes (compliant) |
| Compliance | — | RoHS, REACH (per NXP product page) |