PCF8574T vs PCA8574D Comparaison
Comparaison détaillée côte à côte de PCF8574T par NXP Semiconductors 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.
NXP Semiconductors
PCF8574T - 8-bit I2C I/O Expander, SOIC-16 | NXP Semiconductors
PCF8574T ObsoleteComparaison des spécifications
| Paramètre | PCF8574T | PCA8574D |
|---|---|---|
| Marque | NXP Semiconductors | NXP Semiconductors |
| Catégorie | Interface ICs | USB Interface ICs |
| Statut du cycle de vie | Obsolete | Fin de vie |
| Statut du stock | In Stock | In Stock |
| Prix unitaire (USD) | $0,61 | $0,74 |
| 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 | — |
| 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 | Yes, open-drain INT with latched flag |
| Output Current (drive LOW) | [DATA_NEEDED: sink current per pin mA] | — |
| Standby Current | [DATA_NEEDED: Istandby in uA] | — |
| Boîtier | SOIC-16 (T suffix) | SO16 (SOIC-16, SOT109-1) |
| Température de fonctionnement | -40C to +85C (industrial) | [DATA_NEEDED: operating temperature range] |
| Niveau MSL | 1 (unlimited floor life) | — |
| Statut RoHS | Compliant | [DATA_NEEDED: RoHS status] |
| Process Technology | Silicon CMOS | — |
| Fonction | — | Remote 8-bit I/O expander for I2C-bus with interrupt |
| Number of I/O Ports | — | 8 quasi-bidirectional |
| Interface | — | I2C-bus (SCL, SDA) |
| 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) |
| Type de montage | — | Surface Mount |
| 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 du cycle de vie | — | End of Life (per NXP product page) |