PCF8574DW vs PCA8574D Comparaison
Comparaison détaillée côte à côte de PCF8574DW par Texas Instruments et PCA8574D par NXP Semiconductors. Comparez les spécifications clés, les paramètres électriques, le conditionnement, le statut de cycle de vie, les prix et la disponibilité pour déterminer le meilleur composant pour vos exigences de conception.
Comparaison des spécifications
| Paramètre | PCF8574DW | PCA8574D |
|---|---|---|
| Marque | Texas Instruments | NXP Semiconductors |
| Catégorie | Interface ICs | USB Interface ICs |
| Statut du cycle de vie | Actif | Fin de vie |
| Statut du stock | In Stock | In Stock |
| Prix unitaire (USD) | $1,10 | $0,74 |
| Product Type | 8-bit I2C I/O expander | — |
| Number of I/O Ports | 8 | 8 quasi-bidirectional |
| 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 | — |
| Interface | I2C two-line bidirectional bus | I2C-bus (SCL, SDA) |
| Port Architecture | Quasi-bidirectional I/O | — |
| Interrupt Output | Open-drain | Yes, open-drain INT with latched flag |
| Standby Current | 10 µA maximum | — |
| Boîtier | 16-SOIC | SO16 (SOIC-16, SOT109-1) |
| Nombre de broches | 16 pins | — |
| Type de montage | 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] | — |
| Température de fonctionnement | [DATA_NEEDED: operating temperature range] | [DATA_NEEDED: operating temperature range] |
| Fonction | — | Remote 8-bit I/O expander for I2C-bus with interrupt |
| I2C Bus Speed | — | 400 kHz |
| Supply Voltage Range | — | 2.3 V to 5.5 V |
| Hardware Address Pins | — | 3 (A0, A1, A2) - 8 addresses |
| Power-on Reset | — | Yes, ports initialized high (input mode) |
| Ordering Suffixes | — | PCA8574D,512 (Reel 13 inch), PCA8574D,518 (Reel 7 inch) |
| Max Devices per Bus | — | 8 (PCA8574) or 16 with PCA8574A (128 I/Os total) |
| LED Driving | — | Direct drive, current-sink mode per family datasheet |
| Statut RoHS | — | [DATA_NEEDED: RoHS status] |
| Statut du cycle de vie | — | End of Life (per NXP product page) |