PCA9500PW vs PCF8574PW 比較
詳細並排比較 PCA9500PW 由 NXP Semiconductors 與 PCF8574PW 由 Texas Instruments. 比較關鍵規格、電氣參數、封裝、生命週期狀態、價格與供貨情況，以找出最符合您設計需求的元件。
Texas Instruments
PCF8574PW - 8-bit I2C I/O Expander 20-TSSOP | Texas Instruments (Tape & Reel)
PCF8574PW ✓ 啟用中規格比較
| 參數 | PCA9500PW | PCF8574PW |
|---|---|---|
| 品牌 | NXP Semiconductors | Texas Instruments |
| 類別 | Interface ICs | Interface ICs |
| 生命週期狀態 | 啟用中 | 啟用中 |
| Product Type | 8-bit I2C-bus and SMBus I/O port expander with EEPROM | — |
| 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 | — |
| 工作溫度範圍 | -40 °C to +85 °C | — |
| Hardware Address Inputs | 3 address pins | — |
| Maximum Devices on One Bus | 8 devices | — |
| 封裝 | 16-pin TSSOP | 20-pin TSSOP (PW) |
| 安裝類型 | 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] | — |
| 功能 | — | I/O Expander |
| Number of I/O | — | 8 |
| 介面 | — | 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) |
| 工作溫度 | — | -40 C to +85 C |
| RoHS 狀態 | — | Compliant |
| MSL 等級 | — | 1 (unlimited floor life) |