PCF8574T vs PCA9554PW مقایسه
مقایسه دقیق کنار به کنار PCF8574T توسط NXP Semiconductors و PCA9554PW 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 Obsolete
مقایسه مشخصات
| پارامتر | PCF8574T | PCA9554PW |
|---|---|---|
| برند | NXP Semiconductors | NXP Semiconductors |
| دسته‌بندی | Interface ICs | Interface ICs |
| وضعیت چرخه عمر | Obsolete | فعال |
| Product Type | 8-bit I/O Expander | 8-bit I2C/SMBus I/O expander with interrupt |
| Bus Interface | I2C (Standard 100 kHz, Fast 400 kHz) | — |
| Supply Voltage (VCC) | 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] | [DATA_NEEDED: Standby current] |
| بسته‌بندی | SOIC-16 (T suffix) | 16-pin TSSOP |
| دمای کاری | -40C to +85C (industrial) | [DATA_NEEDED: Operating temperature range] |
| سطح MSL | 1 (unlimited floor life) | — |
| وضعیت RoHS | Compliant | [DATA_NEEDED: RoHS status] |
| Process Technology | Silicon CMOS | — |
| Number of GPIO | — | 8 bits |
| Supply Voltage Range | — | 2.3 V to 5.5 V |
| I2C/SMBus Maximum Frequency | — | 400 kHz |
| I2C/SMBus Supported Frequency | — | 100 kHz and 400 kHz |
| رابط | — | I2C-bus/SMBus |
| Interrupt Support | — | Yes |
| Port Register Features | — | Input/output and polarity configuration registers |
| Pull-Up Capability | — | Weak pull-up |
| Address Difference | — | PCA9554A has a different address |
| نوع نصب | — | Surface mount |
| Maximum Output Current per Pin | — | [DATA_NEEDED: Maximum output current per pin] |
| Input Voltage Levels | — | [DATA_NEEDED: Input voltage thresholds] |
| Output Drive Capability | — | [DATA_NEEDED: Output drive current and output voltage characteristics] |
| Operating Current | — | [DATA_NEEDED: Typical and maximum operating current] |
| REACH Status | — | [DATA_NEEDED: REACH status] |