PCF8574DW vs PCA8574D,512 مقایسه
مقایسه دقیق کنار به کنار PCF8574DW توسط Texas Instruments و PCA8574D,512 توسط NXP Semiconductors. مشخصات کلیدی، پارامترهای الکتریکی، بسته‌بندی، وضعیت چرخه عمر، قیمت‌گذاری و موجودی را مقایسه کنید تا بهترین قطعه را برای نیازهای طراحی خود تعیین کنید.
NXP Semiconductors
PCA8574D,512 - 8-Bit I2C I/O Expander 400kHz SOIC-16 | NXP
PCA8574D,512 ✗ پایان تولیدمقایسه مشخصات
| پارامتر | PCF8574DW | PCA8574D,512 |
|---|---|---|
| برند | Texas Instruments | NXP Semiconductors |
| دسته‌بندی | Interface ICs | Interface ICs |
| وضعیت چرخه عمر | فعال | پایان عمر محصول |
| Product Type | 8-bit I2C I/O expander | Remote 8-bit I/O expander for I2C-bus with interrupt |
| Number of I/O Ports | 8 | — |
| I2C Maximum Clock Frequency | 100 kHz | — |
| Operating Supply Range | 2.5 V to 6 V VCC | — |
| Product-Page Supply Range | 2.5 V to 5.5 V | — |
| رابط | I2C two-line bidirectional bus | I2C-bus (2-wire, SCL and SDA) |
| Port Architecture | Quasi-bidirectional I/O | — |
| Interrupt Output | Open-drain | Yes - open-drain, active-low INT |
| Standby Current | 10 µA maximum | — |
| بسته‌بندی | 16-SOIC | 16-SO (SOIC-16, SOT109-1) |
| تعداد پایه | 16 pins | — |
| نوع نصب | Surface mount | Surface Mount |
| Application Category | I/O expander | — |
| Bus | I2C/SMBus | — |
| Port Names | P0 through P7 | — |
| Manufacturer | Texas Instruments | — |
| Compliance Information | [DATA_NEEDED: RoHS status] | — |
| دمای کاری | [DATA_NEEDED: operating temperature range] | [DATA_NEEDED: operating temperature range] |
| Number of I/O Lines | — | 8 quasi-bidirectional (8 input / 8 output capable) |
| I2C Bus Speed | — | 400 kHz (Fast-mode) |
| Supply Voltage Range | — | 2.3 V to 5.5 V |
| Hardware Address Pins | — | 3 (A0, A1, A2) - up to 8 devices per fixed address |
| نوع خروجی | — | Quasi-bidirectional, latched, with power-on reset |
| وضعیت RoHS | — | Compliant (ordering code suffix ,512) |
| Compatible Predecessor | — | PCF8574 (pin-compatible family member) |
| Typical Applications | — | Keypads, LED driving, relay expansion, remote I/O |
| Max Devices per Bus | — | 8 (PCA8574) + 8 (PCA8574A) = 16 expanders / 128 I/Os |
| وضعیت چرخه عمر | — | End of Life per NXP product page |