PCF8574T vs PCF8574TD مقایسه
مقایسه دقیق کنار به کنار PCF8574T توسط NXP Semiconductors و PCF8574TD 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
PCF8574T - 8-bit I2C I/O Expander, SOIC-16 | NXP Semiconductors
PCF8574T Obsoleteمقایسه مشخصات
| پارامتر | PCF8574T | PCF8574TD |
|---|---|---|
| برند | NXP Semiconductors | NXP Semiconductors |
| دسته‌بندی | Interface ICs | Interface ICs |
| وضعیت چرخه عمر | Obsolete | فعال |
| Product Type | 8-bit I/O Expander | — |
| Bus Interface | I2C (Standard 100 kHz, Fast 400 kHz) | — |
| Supply Voltage (VCC) | 2.5 V to 6 V | 2.5 V to 6 V |
| Number of I/O Pins | 8 (quasi-bidirectional, P0-P7) | — |
| I2C Address Bits | 3 (A0, A1, A2) | — |
| Base Address | 0x20 (PCF8574) / 0x38 (PCF8574A) | — |
| Addressable Devices per Bus | 8 (addresses 0x20-0x27) | — |
| Interrupt Output | Yes, open-drain INT pin | — |
| Output Current (drive LOW) | [DATA_NEEDED: sink current per pin mA] | — |
| Standby Current | [DATA_NEEDED: Istandby in uA] | 10 uA maximum |
| بسته‌بندی | SOIC-16 (T suffix) | SO-16 (Small Outline, 16-pin) |
| دمای کاری | -40C to +85C (industrial) | -40C to +85C (industrial) |
| سطح MSL | 1 (unlimited floor life) | [DATA_NEEDED: MSL rating] |
| وضعیت RoHS | Compliant | Compliant |
| Process Technology | Silicon CMOS | Silicon CMOS |
| عملکرد | — | Remote 8-bit I/O expander for I2C-bus |
| Number of I/O | — | 8 (quasi-bidirectional) |
| رابط | — | I2C-bus (2-wire, up to 400 kHz) |
| I2C Address Range (PCF8574) | — | 0x20 to 0x27 (3 HW address bits) |
| Interrupt Output (INT) | — | Yes, open-drain, active-low |
| Maximum Bus Frequency | — | 400 kHz |
| Output Drive Capability | — | 25 mA sink per pin (quasi-bidirectional) |
| نوع نصب | — | Surface Mount |
| ESD Rating | — | [DATA_NEEDED: ESD HBM rating] |